Mobile Device Battery: Ni-Cd and Ni-MH
Let's take a look at batteries! We'll begin with a discussion of older batteries (but that are still in the marketplace or on older systems). Then, we'll see what's commonly used in modern portable devices.
Knowledge Check
Which of the following is a disadvantage of nickel-cadmium (NiCad) batteries?
Mobile Device Battery: Li-Ion
Now, let's move on to the battery type that is predominantly used in most battery-powered electronic devices of all types - the Lithium Ion battery.
The video below discusses "thermal runaway." This occurs when Li-Ion batteries generate more heat than they can safely dissipate.
Knowledge Check
Which of the following are advantages of lithium-ion batteries?
Field Replaceable Units: MacBook
We'll take a look at a couple of different generations of MacBooks. You'll soon see which one has more Field Replaceable Unit (FRU) components.
Note: I blew dust out of the older MacBook using a portable blower with a brush on the tip. This MacBook was previously ruined by a drink spill, so any additional damage became a moot point. However, you generally do not want to place a brush into contact with sensitive electronics. Things like the portable blower involve moving parts, which potentially generate static electricity - a hazard to electronics. It is otherwise safe to blow away dust provided the blower does not contact the electronics. Portable blowers like I used are, in the long term, more economical than purchasing cans of compressed air, and perhaps more environmentally friendly.
Knowledge Check
Which two components in modern MacBook Pros is not considered user serviceable?
Field Replaceable Units: PC-Based
PC-based hardware typically offers more FRU parts than a MacBook. PC-based laptops generally run a Windows operating system (although they are compatible with Linux as well.)
Knowledge Check
What tool is specifically designed to safely pry open laptop cases without causing damage?
Below is a list of common CR batteries, including the battery code, diameter, thickness, and common uses.
Validation
Wow, we've performed mobile device surgery on a variety of laptops! Let's see what we've learned about the internals of these devices.
Knowledge Check
Which of the following portable computers is least likely to offer FRUs?
Knowledge Check
Which of the following is a disadvantage of lithium-ion batteries?
Knowledge Check
What is the term often used to describe the process of fully draining a battery and recharging to capacity?
View Transcript
Mobile Device Battery: Ni-Cd and Ni-MH
0:00All right, as we get started here, taking a look at various replaceable
0:04components for portable devices,
0:06a preface it by saying not everything is replaceable. Some laptops, for example
0:11, will have replaceable batteries or memory, and others won't.
0:15You just can't. Sometimes it's kind of baked into the machine. There's really
0:19not a way to replace those items.
0:21So we'll be kind of taking a look at a variety of different things, but we're
0:24going to be starting here.
0:25First of all, with batteries, I'm going to start with taking a look at a couple
0:29of the older batteries.
0:30These are not a big emphasis for us, I don't think, because you don't see them
0:35as much as we used to.
0:36Nevertheless, you could possibly still run into old devices like this.
0:40So let's take a look here at batteries. We're starting with the old ones here,
0:45and the old one like a nickel cadmium battery,
0:49or what we used to just call a nikad, nikad battery. These came out quite a
0:54long time ago, like in the 1960s.
0:56There's old as I am. Okay, and they went up into the 90s. I used to work with
1:01these a lot in different areas.
1:02It's not all in computing kind of stuff. A lot of rechargeable batteries for
1:09flash guns that we'd use in photography.
1:10Those were very often nickel cadmium or camera batteries were very often nickel
1:15cadmium or some variant thereof.
1:17So we've been using these in a lot of different types of devices, including,
1:21again, of course, laptop computers and other portable devices.
1:25But let's take a look at some of the advantages of these batteries first, even
1:29though we don't use them very often anymore.
1:31One of those would be they do pretty well in extreme temps.
1:34Here in Phoenix, Arizona, where I live, it can get to 115 in the summertime.
1:39Sometimes a little bit more.
1:40We like to pretend as if it's always that hot here and we're suffering all the
1:45time.
1:45Usually it's only two or three times a year. It's to be that hot.
1:48Otherwise, it's usually in 110 is a common temperature for summertime
1:53temperatures.
1:54So that's one extreme. The other extreme would be extreme cold temperatures.
1:58So it can do well in that as well.
2:00Relatively speaking, no battery really thrives in extreme high or low
2:05temperatures, regardless of the chemical makeup of the battery.
2:09And if it's too cold, by the way, but it gets to be pretty cold, the batteries
2:15will discharge much faster in colder temperatures.
2:17So as a photographer, I use that camera that I'm being on right now to do
2:22landscapes.
2:22And if I'm in really cold environments, like when you're I was up in Montana in
2:27the winter and that was extremely cold, I had to keep a couple of spare
2:31batteries for my camera in my chest pocket in my jacket to keep it from getting
2:36too cold and discharging.
2:38But it can also handle rough handling.
2:40So these kinds of batteries in again, that's going to partially depend on what
2:44it's clad in, what kind of what kind of casing it's in that encloses that
2:48battery.
2:49Usually there's some kind of plastic that's formed around it or something like
2:53that.
2:53So it's so could have something to do with that as well.
2:56Also, Nick Academy of batteries and ICAD usually charge fairly fast.
3:00And that's just relative to other types of batteries.
3:04They also will have a fairly long life cycle if they are maintained properly.
3:08So that's again, one reason why am I still seeing ICADs somewhere from time to
3:12time.
3:13They do have something called a memory effect.
3:15Now that is something that's quite an annoyance.
3:18Let me tell you how that works out.
3:19So let's just say that this is a battery and I'll just do kind of a D battery
3:24or something like that.
3:26You get the idea.
3:27It just represents a battery.
3:28But over time, it's going to discharge, right? So this is 100% charge.
3:35This is 0%.
3:36And as it's charged to 100%, maybe we use it.
3:41So now maybe we use it down to, let's just say to hear, let's say now it's at
3:4540% of it's available charge.
3:50At that point, we recharge it back up to 100%.
3:55Now what's going to happen is, especially if you do this multiple times,
3:59is it's going to remember that this is where it bottomed out, okay, when you
4:02started to charge it again.
4:04And so therefore, it's never going to give you this additional space down here.
4:07This all gets kind of wasted.
4:09Even when it's fully charged, it'll only discharge down to the 40% mark
4:14instead of going all the way down to 0.
4:16So that's the memory effect.
4:19There are chargers and methods that you can use to somewhat mitigate this.
4:24So for example, I've got chargers for this type of a battery that what they do
4:28is it's called reconditioning.
4:31And what it does is it, you know, for 100% here, or any percentage really,
4:36what it does is it completely discharges the battery on purpose down to 0% for
4:41that kind of a charger.
4:43And it can then kind of reset the memory effect so that 0 is truly 0, okay?
4:49Anyway, that's the memory effect. There's also toxicity.
4:52It's the cadmium that's the issue here in this chemical composition.
4:56Usually, I can't remember which one's which, but usually one of the chemical
4:59components
5:00is the positive, the other one's the negative.
5:03And that's how it flows the electricity or the power, the current through the
5:09battery.
5:09Well, the cadmium is kind of difficult to dispose of and difficult to recycle.
5:14Now, that's not something that we would do on our own.
5:17Anyway, we would take it somewhere and have a recycling center recycle it.
5:20But it's a challenge for them to be able to recycle that cadmium
5:24compared to certain other kinds of battery.
5:26So the other kind of battery that we'll talk about here is a nickel metal hydr
5:31ide or an NIMH.
5:33There's not really a nickname for this that I know of.
5:35This came out in the 1980s and into the 2000s.
5:39So you're probably more likely to see these.
5:41They do have some advantages.
5:43So they're 40% more energy density in this type of a battery.
5:49So in the same form factor, relatively speaking here, I'm not being scientific
5:53about this.
5:54The same form factor is this, if this is a nikad and this other one is a nickel
5:59metal hydride.
6:00In the same form factor, you're probably going to get 40% more out of this type
6:06of a battery
6:06than you would out of the same battery in a nikad.
6:09This can vary from manufacturer, the way it's processed, all that kind of stuff
6:13.
6:13But that's the general idea.
6:14Now these are also generally less toxic and therefore easier to recycle and/or
6:20dispose of.
6:21Disadvantages here.
6:23So all batteries will self-discharge.
6:26As the battery sits on the shelf, you might have a charge at 100%.
6:31And then over weeks and months of time, it'll slowly start to discharge, even
6:36if you're not really
6:37using it.
6:38And again, that's true of any battery, but it's more true of a nickel metal hy
6:42dride than certain other
6:43batteries.
6:44They also are known to have a somewhat shorter lifespan, again, compared to nik
6:49ads or lithium
6:50ion, which we'll talk about in our next video.
6:52They're also relatively heavy compared to nikad batteries.
6:56They just simply weigh more.
6:58So in our next video, we'll be talking about lithium ion batteries, which is
7:03kind of the common
Mobile Device Battery: Li-Ion
0:00All right, as a follow on to the last video where we were talking about a
0:04couple of different older types of battery technologies. One of those was nik
0:07ads. And those are largely defunct. I don't think you'll see those very often
0:11anymore.
0:12But I also kind of alluded that nickel metal hydride batteries are also older
0:17and they are, but you do still see them. So for example, here, let me show you
0:23this is an entle loop battery. That's the brand.
0:25See it right there. You can get these off of Amazon or really kind of anywhere.
0:30A lot of people in photography use these. These are rechargeable double a
0:34batteries.
0:35I use them in my flash gun, my flash all the time. And wow, they're just
0:40fantastic. They will recycle the flash very, very quickly. And these do have,
0:48even though we mentioned that they do have self discharge in this kind of
0:50battery.
0:51Really all batteries do. I can have one of these charged and sitting on the
0:56shelf for months and still get most of the usefulness out of the energy in this
1:01battery.
1:02The statement is a lot of people say you can leave these on the shelf for a
1:06year and still have 90% of the battery life on this type of battery. So anyway,
1:12again, that was nickel metal hydride which I talked about in our last nugget. I
1:15just forgot to mention that particular kind of battery.
1:18Okay, so that's why I brought it up here. But now let's talk about new
1:21batteries. And with this, these are the kind that are going to be used most of
1:26the time in most devices.
1:28So this type of battery I just showed you, I would have to put that into a
1:32charger and then I could use it in any device that accepted double a batteries
1:37lithium ion batteries.
1:39I don't know they don't exist in that kind of a format but most of the time
1:43these are going to be integrated into a device like hearing aids, earbuds,
1:48headphones, tablets, phone, cell phones, laptop computers, all that kind of
1:53stuff.
1:54So these are very commonly used in all those lithium ion or lion, I guess if
1:57you want to say it, lion, I don't know.
2:00Anyway, these came out in the 90s and they're still current and these are the
2:04ones that you really want to be using. Some of the advantages for using a
2:09lithium ion battery will include that a fact that it has a very high energy
2:13density.
2:14Because of that, you can use laptops there that will have very long battery
2:19life. There's a lot of other factors that play into this, by the way. But I
2:24have a MacBook Pro, I think it's a 2019 or 2020 MacBook Pro.
2:30I can fly overseas with that MacBook Pro and not have the battery die. It lasts
2:37for hours, partially because of this battery technology, but also because of a
2:43little bit of a tangent here but in the MacBook Pros now last several years
2:48they used something called an ARM processor, advanced risk machine.
2:52So, I'm not going to spell it. Only three letters and I still must spell it,
2:57advanced risk machine. So, risk is reduced instruction set computing. I'm not
3:03going to write all that out.
3:04Okay, reduced instruction set computing. The basic idea is we'll talk more
3:07about this when we discuss processors later on in this course, but they, as the
3:13name implies, if you use fewer instructions, it's not all that simple but that
3:17's generally how it works out.
3:19They consume an amazingly smaller amount of power compared to other types of
3:24processors, like Intel processors. So anyway, the bottom line there is because
3:30of these types of processors in conjunction with using lithium ion batteries,
3:36we can get an extremely long battery life out of a lot of batteries nowadays.
3:41And by the way, the there's a variance of ARM that's also used in most mobile
3:46phones, tablets, stuff like that.
3:50They also do have a very low self discharge. So you can charge one of these
3:55like a laptop, for example, or tablet, you can charge it to 100% let's say, and
4:00then go weeks or even months without using that device and when you turn it on,
4:04it still has most of the charge.
4:06How much? Well, that varies from device to device. But if it was charged 100%
4:11you can use it for a long time after that and still get a pretty good, good a
4:16length of time out of that battery.
4:19Also, there's no memory effect, not directly anyway with lithium ion batteries.
4:23Remember we talked about that in our last nugget where you know this is your
4:26battery you're 100% here is your 0% here.
4:29And if you go all the way down to a certain percentage, let's say 40%, before
4:33you start to recharge it again, it remembers what you called it to be the
4:37bottom. In other words, it says to itself, if you will.
4:41If this guy charges the battery when it's got 40% charge left, we'll assume
4:45that that's actually 0 and therefore it will not drain to this 0% anymore.
4:51We don't have that memory effect with lithium ion batteries. Also, they have a
4:55high cycle rate. We didn't discuss that in our last video, but anything it's
5:00rechargeable can only be recharged a certain number of times before it will no
5:06longer hold a charge very well
5:08or before it dissipates its charge very, very quickly. But lithium ion
5:13batteries have a high cycle rate, meaning that you can usually recharge these,
5:19possibly 1000 of times without really having a significantly detrimental effect
5:25on the cycle rate or the overall life of that battery.
5:29Also, they do charge very quickly, relatively speak. Now, let's take a look at
5:34some disadvantages. There's not really all that significant, but one of those
5:38would be expense.
5:40So these kind of batteries are just more expensive to manufacture. So therefore
5:43, anything that they're in is also going to be a little bit more expensive
5:46because the battery is more expensive.
5:49They do have some thermal sensitivity. That's to put it lightly. So when I talk
5:54about this, I'm really talking about the fact that they can catch on fire. Okay
5:59.
5:59These batteries are by far the best batteries that we've had, at least to this
6:04point. However, there is a fire risk. That's why, you know, if you fly much,
6:09you'll see the question posed when check in and it'll say, do you have any
6:14battery power devices or something like that.
6:16In your checked luggage, because there's a concern that it could catch on fire.
6:22And when it does, it burns very hot. These batteries do. And they're very
6:26difficult to put out the fire because there's contributing energy in that
6:31battery.
6:32That's supplementing the energy of that fire or feeding it. So you can imagine
6:36if it was in a, the cargo hole of a plane where everyone's checked luggage is
6:40if something catches on fire down there.
6:43There's lots of fuel down there. There's other bags, there's plastics, other
6:46clothing, all kinds of stuff. And nobody might know that it had caught on fire
6:50because it's way down there.
6:52But if you carry it with you in the cabin, then at least if it were to catch on
6:55fire, there's someone there that can see it and hopefully suppress it or
6:59something.
7:00So what causes this kind of thing, by the way, where they could catch on fire,
7:04it could be either physical damage. You know, something might have gotten
7:08dropped, or maybe there's a crimp in the battery, or it's got a
7:12brake in the sealed housing of that battery or something like that. That could
7:16happen. The batteries could just be defective.
7:19Or one of the more common ways also is if they get overcharged. And with this,
7:25you just have to make sure that, especially if you buy a third party charger,
7:28that it has circuitry built into it.
7:32They can detect when a device is properly charged and then it will back off the
7:36charging. And then it's just kind of maintenance charging after that.
7:39But if it gets overcharged, that can certainly happen. Also, one of the things
7:43you can look for is some safety factors for, well, this kind of battery or
7:47really any kind of battery.
7:49So if you see a battery that is ruptured in any way or broken or is swollen,
7:54sometimes this is a precursor or a harbinger, if you will, to win a battery is
8:00about to have a major problem like that.
8:02If you see a battery that's a number one, unusually hot, that's a warning sign.
8:07Or if it swells, I don't really have anything to show you like that right now,
8:11but I'll show you some batteries inside of computers later on.
8:13But let's say this is one of the batteries. That's actually my little credit
8:17card holder for my phone. But anyway, if you see it start to swell, you know,
8:21like right now you notice that right across here it's completely flat.
8:24You'll see it start to bow or bulge out. And I've seen this before. That again
8:30is also a sign that that battery might not be safe, should be safely disposed
8:35of.
8:36I think I actually give this to us that here in a moment anyway. There's also
8:39calendar aging. So this just means that the capacity is going to degrade over
8:44time, even if you're not using that battery.
8:48But again, that's not that really big of an issue in my opinion that's just
8:51kind of one of the points that people make about this sometimes. The reason why
8:54it's not that big of an issue in my opinion is because how long do we keep
8:59devices.
9:00I've got an iPad I think I've had it for five years the battery is still great.
9:05Really have no issues with it I'm probably going to trade it in or sell it or
9:08something like that and buy a new one before long anyway.
9:12Same with phones. How long do we keep our phones. Most people will keep their
9:16phones two years maybe three. Very likely that lithium ion battery is going to
9:21be well within its lifetime for that two or three year lifetime that you keep
9:27that phone.
9:28So calendar aging may not be all that significant of an issue now mentioned
9:32earlier protection circuitry you do want to make sure that whatever you charge
9:37it with it either the manufacturer's original charger.
9:41Or that you buy a charging device that has internal circuitry that can protect
9:46that device so that it does not overcharge.
9:49Sometimes by the way that protection circuitry is found either in the charger
9:53itself or very often also could be in the device itself. So for my MacBook Pro
9:58I use a third party charger for it I don't use the apple one because the apple
10:03one's too big and bulky.
10:05On Amazon I got one for I think was $19 it's about half the size half the
10:10weight.
10:11It's got extra USB ports on it and it fully charges my MacBook Pro but the
10:15circuitry to prevent overcharging is actually inside of the MacBook not inside
10:19of that charger.
10:21And by the way speaking of MacBooks there's also something called optimized
10:25charging without getting to all details there.
10:28You know what actually I'm going to go get my MacBook and I'll show it to you.
10:32Okay, I'll show you something about that optimized charging so you can kind of
10:34put eyeballs.
10:35Okay, so here I'm just making a remote connection to my MacBook Pro I just I'm
10:36trying to learn another language so I've still got the dual lingo running you
10:42only get rid of that thing and go to the settings.
10:48Okay so actually a couple of ways we could do this get rid of some other noise
10:52here as well. The professional trainer would have cleaned all this up before
10:55started recording but you didn't get a professional trainer you got me.
10:59So anyway notice the charging up here I had it at a coffee shop earlier and I
11:04just now brought it in it was in my motorcycles storage saddle bag so anyway I
11:09just brought it in and plugged it in you can see there there's a little
11:14lightning bolt on it so it's charging.
11:15But if we click on that we'll see that it's at 58% and look at this it's kind
11:21of fuzzy because of resolution issues but it says it's going to be an hour and
11:2414 minutes until fully charged.
11:27Very often these can also defer a full charge based upon your habits. So it
11:34will notice what time you generally plug it in and this is something that I don
11:37't know all the intelligence that Apple uses for this.
11:40But it identifies your habits when you usually plug it in you know maybe plug
11:44it in before you get a bed at night and it can kind of identify that that's a
11:48good time to charge it.
11:50This would look like it's just going to continue to charge until it's fully
11:53charged although I don't think it's charging it 100% of its ability because an
11:57hour and 14 minutes is longer than I think it would normally take for it to get
12:02to that status of 100% from this stage.
12:06So anyway, here it also identifies my battery health. It says it's normal so
12:13that's good. I've had this laptop. I think four years now and it's still
12:16running along just great I used every day.
12:19I could choose to use low power mode. I'm not great environmentally friendly
12:23apparently but that's set to never right now.
12:26Just because I have to have it always at full power for some of the things that
12:30I'm doing. It shows the battery level over time. Notice that it knows also what
12:36hours it was being charged at.
12:38Okay so it's being charged. It doesn't go to the previous day there but from
12:42three to nine o'clock in the morning. Apparently I took it off the charger
12:45around nine o'clock this morning.
12:48Huh. Seems like I must have overslept or something. Anyway, I was at the coffee
12:52shop you saw a diminished a little bit of its charge clear up until now where
12:56it is again currently charging.
12:59You can also identify the last 10 days and how I've been using it over the last
13:03several days. Part of the reason why it also identifies screen on usage here is
13:09because that's one of the most energy draining things that your laptop will
13:15have.
13:15Everything consumes power the main board logic board if you want to call it
13:19that in the Mac ecosystem it's usually called the main board or more currently
13:23it's called usually the logic board on PC's we call it a motherboard
13:29but anyway those things will all take power because of the RAM that's connected
13:32to it the CPU that's connected to it graphics cards stuff like that but to
13:37power the monitor that's on there.
13:40That takes a lot of battery power requires a lot of juice that's why this is
13:44kind of monitored there. Other things we can do here as well as we can slightly
13:48dim the display when we're running on battery because again the display
13:52consumes a lot of juice.
13:54We can choose to prevent automatic sleeping when it's plugged in to the power
13:59adapter and the display is off we can wake for network access so that even if
14:04the computer is sleeping it can still be woken up with certain what we call a
14:09magic packet actually but
14:11it doesn't have to just be that type of a packet that's very often used to wake
14:18up network equipment and things like this servers things like that but with
14:26this it could be really any kind of incoming network traffic such as iCloud
14:26update so this means that this laptop could be asleep so to speak
14:28we can still get updates even though it's asleep. You can also zoomed out too
14:42fast but anyway you can also optimize video streaming while on battery and I
14:42usually don't do that but anyway those are some of the things we have with our
14:43batteries here.
14:43And then similarly I have a Lenovo laptop here this of course would be a
14:46Windows 11 computer and let me show you some details here about the battery on
14:51this one saw in a way so we move out of there.
14:54Here is I click on the taskbar area where the battery is, you can see there's a
14:59battery charging symbol right there.
15:02I click on that. So just shows us on the PC site PC side of things I can't talk
15:10today. Also what the battery has been doing lately now I just got this
15:12particular laptop it's been completely installed fresh and everything like that
15:16so there's not much to see here probably.
15:18But you see again that there's some things that can be done to extend the life
15:23of the battery. So battery saver says extend battery life by limiting some
15:27notifications and background activity at 20% but we can change that to some
15:32other percentage if we want to as well.
15:34We also lower screen brightness when we're on battery saver we can get a better
15:38view of our battery usage over time for example over the last day, last seven
15:42days which there won't be again an awful lot to see because I just got this I
15:46think a couple of days ago.
15:48And we can even see what kinds of things are consuming the most battery power
15:52with different applications for example that might be consuming that power so
15:57just another way to monitor and see what's going on with your battery
16:02consumption.
Field Replaceable Units: MacBook
0:00All right, now here what I'm gonna do is I'm gonna take a part of a couple of
0:03different machines.
0:04These are just ones that I happen to have.
0:05And this first one that we're gonna look at here is a really old MacBook Pro.
0:12Can you remember what year? I think it was 2012 or something, so it's quite old
0:16.
0:16But the reason why I'm showing it to you is because there are some differences
0:19now with what is going on
0:20between MacBook Pros of this era compared to the newer ones.
0:25But you will still run into these, okay?
0:27So this is a MacBook Pro that I had that I gave it to a friend of mine
0:32and her husband spilled a glass of milk on it and ruined it, okay?
0:36So they're not married anymore.
0:39I don't know if it's because of this spilled milk or whatever it is.
0:41But anyway, I already took the screws off, okay, and full disclosure, I didn't
0:45take the screws off.
0:46I lost them all.
0:47And so now I'm just gonna take it apart.
0:49And this is gonna be kind of a little bit more traditional look at what my go
0:54on inside of a computer, okay?
0:56First of all, it's all dusty and everything.
0:58Who knows? There's probably dried milk in there somewhere.
1:01Two different things we can do about that. One of those would be, if you're
1:04properly grounded,
1:06you can use a little vacuum like this, okay?
1:09This has, actually, this is a blower.
1:12But some of them will allow you to have an attachment to use on the opposite
1:16side of this.
1:16Let me turn it off.
1:18It won't turn off. There it goes.
1:19So that you can use it as a vacuum or as a blower.
1:22I'm just using this one as a blower right now.
1:24But it's actually pretty high velocity.
1:27And I'm gonna use it to kind of clear out some of the dust here.
1:30That's always a good practice whenever you open up a case.
1:32Okay.
1:50So I blew off some of the old dust that was in there and stuff.
1:53It's not much of a factor with this computer because it's already blown anyway.
1:57It's already ruined.
1:58But what have we got?
2:00First of all, we've been talking about batteries and here is a battery.
2:04Now, this did have a couple of screws.
2:07Actually, there were three screws that would hold this into place.
2:10The first screw would have been right here.
2:13See that or not?
2:14Right about there.
2:17The next one would have been right about here, okay?
2:20And then there's another one right here on the far end right over there.
2:24Okay.
2:25So once those screws are taken out, then you can remove the battery.
2:29There is also a connector that connects to the logic board.
2:33I'm gonna pull that out and you can see there.
2:35It's just a little kind of a, it's not really a technically ribbon connector,
2:38I wouldn't say, but I guess you could call it that.
2:40And it has various pins in it that you used to connect it to the logic board.
2:47So if I recall correctly, I already replaced this battery once and it already
2:51kind of
2:51bailed and everything.
2:53And so this was actually a replacement battery and it's a third party battery.
2:58This says on here, it's kind of hard to see.
2:59So I'll just read it to you.
3:00It says lithium ion.
3:02Okay.
3:02So it's a lithium ion polymer battery.
3:05And this is how we very often used to be able to work on MacBook Pros.
3:11You could replace your own battery and you can't do that anymore.
3:15I'll show you that here coming up.
3:16Now in the interest of efficiency, since I've got this case open,
3:20I'm going to address some of the other things as well involved in this.
3:24And for that, I'm actually just going to come back over here and talk to you
3:27directly first.
3:27In this particular portion of the A plus exam objective,
3:33it talks about portable devices, of course.
3:35And it does discuss things like RAM, hard disk drive, solid state drives,
3:42batteries, wireless cards, sometimes I think there's biometrics in there,
3:47cameras, microphones, stuff like that.
3:50And he also speakers, actually let me look at the list.
3:53It doesn't mention speakers, but it probably should.
3:55It's mentioned in the next domain.
3:56But anyway, the point I'm making with all of that is we're going to be covering
4:00a lot of those topics
4:02later on in more detail.
4:03So for example, RAM, I'm not going to tell you all about RAM right now.
4:06It's random access memory.
4:08It's where your data is going to be when it's live, when you have a file open,
4:12it loads into RAM.
4:13When you open an application, it loads its executables and associated files
4:17into RAM.
4:18And the processor interacts with whatever is in that RAM.
4:22So that's kind of the short version.
4:25Like I said before, I'm not going to go into a lot of detail with that right
4:27now,
4:28other than to show you our main purpose here, which is to show you where you
4:32can identify
4:32some of these things on a portable device.
4:34And so with that in mind, oops, I'm on the wrong screen.
4:37That's actually the exam objectives right there.
4:39But we'll go back over here.
4:41Okay.
4:42So what have we got?
4:43This is the hard drive.
4:46This is literally a hard drive.
4:47Most laptops these days, most modern devices don't use hard drives anymore.
4:52For the most part, they're going to be using solid state drives.
4:54And in particular, probably NVMe solid state drives that are using what we call
5:01an M2 form
5:02factor.
5:02I'll talk about all of that again at a future point in time.
5:06But what I'm going to do here is just take this hard drive out.
5:09So you can see how this is normally done.
5:11There's way too small to show you even under magnification.
5:14But this is a Phillips head jeweler's screwdriver.
5:17Sometimes what you'll see these referred to as for an electronics screwdriver.
5:21They're readily available on Amazon, kind of just anywhere, hardware, stores,
5:25whatever.
5:26Anyway, I'm going to use that.
5:27Look, there's some milk residue right there.
5:29I hope this hard drive is not lactose intolerant.
5:33Anyway, so I'm going to unscrew the screws there.
5:36There's one of them.
5:37There's kind of obvious here, really.
5:39I can see four screws right on there.
5:41And I've taken this drive out before because I upgraded it shortly after I got
5:45this years
5:45and years ago.
5:46Anyway, going to release the third screw there.
5:50And then finally the fourth screw.
5:52As with many times, with many portable devices, I should say, the screws are
5:58extremely tiny.
5:59Oh, that one does not want to come out.
6:02The milk apparently became like Loctite in there and it really held on to it
6:05pretty good.
6:06So anyway, these screws, you can kind of see that one there, I think, right?
6:12That's actually a fairly sizable one.
6:13Oh, that does have Loctite on.
6:14I don't know if you can see that, but there's some blue.
6:16You better view there.
6:18Might not be visible, but there's some blue Loctite on there,
6:21which if you're not familiar with Loctite, it's used in a lot of different
6:24things.
6:25It's used in auto mechanics, construction, you know, electronics like this, all
6:29kinds of things where
6:31it's a liquid that you put onto a screw and it kind of holds it into place so
6:37it doesn't
6:37walk its way out over time.
6:39So vibration or tension or something like that doesn't cause that screw to kind
6:44of unwind,
6:45if you will.
6:45So, okay, that's it.
6:47Now I'm just going to take this out.
6:49It's got a ribbon connector right here.
6:50This is a serial ATA hard drive.
6:54I don't know if that's too visible or not.
6:55I have to look this way to see if you can see it or not, but that's a serial AT
6:59A connector on there.
7:00Again, we'll talk about that at a future point in time some more,
7:02but it used to be very, very common on laptops, okay, on desktops as well.
7:07But anyway, and then it would just connect to this ribbon cable here and then
7:10we would have
7:11underneath here, which is out of view, there'll be a connector into the logic
7:16board where that
7:17hard drive would ultimately be making its interface.
7:20So this is a, what is it, a one terabyte hard drive, which is actually pretty
7:26large for the
7:28age of this computer.
7:29This is back when we were getting hard drives that were closer to 512 megabytes
7:33.
7:33So pretty sizable.
7:35But by today's standards, this type of drive, very slow.
7:40That's why we don't really see them in modern computers anymore,
7:43desktops or laptop computers.
7:47Hard drives still have their place.
7:48They're very often used for archival storage, for example,
7:53but most modern devices, we don't use those anymore.
7:56Okay, what else have we got?
7:58Oh, this is a CD DVD drive.
8:00It's a little bit more involved to take out, but I could take that out as well.
8:04Although once again, that's another thing you don't ever see in modern
8:08computers,
8:09because nobody's using CDs or DVDs anymore.
8:12Another thing we see here are a couple of fans.
8:15We can see that there's milk right there on this fan right here.
8:19Oh, and it looks like right here.
8:21I'm not sure that I'm accurate on this, but right here, it looks like there was
8:25a little bit of an
8:26arc or something in there.
8:27It must have happened when the milk has spilled in there.
8:29But the next thing I really want to point out is this right here.
8:31This is memory or RAM, really.
8:34This is something called a small outline dual inline module memory module,
8:41small outline dual inline memory module or a so dim.
8:45I pull these tab connectors to the side up,
8:50like to the side, and it pops open.
8:55And then now this can pull out like this.
8:58And there's actually two dims, so dims in there.
9:02There's a, it's the kind of double stacked key wheel.
9:04There's this one that was on top, and then the one that was on the bottom there
9:07.
9:07Well, sure how many that is.
9:09Two gigabytes, okay.
9:10So there's two gigabytes on this one, and then there's two gigabytes on this
9:14one.
9:14So total of four gigabytes.
9:16Anyway, once again, as you'll see later on, on modern modern MacBooks, modern
9:23MacBooks,
9:24these are now integrated into the mainboard, into the logic board.
9:27So you can't just swap out memory on a laptop like this.
9:32If I decided four gigabytes wasn't enough, I can put two four gigabyte ones in,
9:36and I'd have eight or two eight gigabytes in, and then I'd have 16 or something
9:40like this.
9:40So I'm just going to go ahead and put these back right now.
9:42Notice that they are, they do have a offset slot right here,
9:48so that you can only put it in one way.
9:49You can't put it in backwards or sideways or upside down or whatever.
9:53If that could happen, I probably would do it.
9:56Anyway, go ahead and press that down.
9:59Again, with this one, stick it into the slot, press it in, and press it down,
10:04and it is now locked in the place.
10:07Here on this side, we see two cooling fans.
10:09Outside of our view here, probably underneath the other side of this logic
10:14board,
10:15is going to be the processor.
10:16It's also going to have the graphics card.
10:18Those do produce quite a bit of heat.
10:21And so these fans, I'm sure, are going to be cooling those components.
10:25But anyway, this is one of the older types.
10:27I'm going to go ahead and put this back together,
10:29and then I'll move on to one of the other types of laptops.
10:34So I'm just going to go ahead and finger tighten these.
10:37You don't have to get a torque wrench out or something like that,
10:40or be too scientific with it.
10:42Generally speaking, just finger tip tight.
10:45Just twist this until it's just finger tip tight.
10:48You don't want to really crank it down because these are small screws.
10:52Sometimes they will go into aluminum, or sometimes they'll even go into plastic
10:56.
10:56And if you over torque them, then it can strip out that screw,
11:00at least the screw socket where it goes in.
11:02All right, screw in that last one in, and we'll put the case cover back on.
11:08Here we go.
11:09And if I had any screws remaining, I would screw it in here.
11:13One thing I'll point out also while we're here is that,
11:18notice these feet that are on here?
11:19Sometimes those rubber feet that are here will fall off,
11:25and there's an adhesive usually that will keep them in place on the case.
11:30Some laptops will actually have a retaining screw underneath these feet.
11:35So in order to get to the screw, you have to pry these off of there,
11:37which I don't really like to do, because as you may be aware,
11:41once you release the adhesive on the other side of that,
11:44it's never as good anymore.
11:46And a lot of times it will not stick on there anymore.
11:48Oh, you know what I just realized?
11:49I never put the battery back in.
11:51See how good I am at A+ stuff, people?
11:53Let me show you another thing I've got here.
11:56This is a suction cup, and this one's not too hard.
11:59I could take it off my hand anyway, but this is actually a phone holder.
12:02As you can see, this is where the phone would go.
12:04This is what I just didn't use this in my car,
12:06but it's got a little locking mechanism here,
12:07which gives me really good suction on that suction cup.
12:10So some devices, you'll need to use a suction cup to pull off,
12:13and voila, that comes off quite nicely there.
12:16So let me just put this battery back in.
12:18And you put that back into that little ribbon connector.
12:22There would normally be screws, but I don't have any in this particular case,
12:25because again, it's kind of just an old, just fun to computer anyway.
12:28All right, now let's move on to a more modern MacBook.
12:32This is a model A2141.
12:38You can Google that if you want, but that is a 16-inch MacBook Pro
12:422019 model.
12:44Okay, so it's a few years old right now.
12:47Now this again is going to use a bunch of really tiny screws.
12:51Also, these are even smaller than the other screws I showed you.
12:55For sake of reference, maybe you can see it right there in the palm of my hand.
12:59Look how small that is.
13:00Those are so easy to lose, and yes, I've lost lots of them.
13:04I even ordered it on Amazon a spare set of these screws,
13:07because they just kind of go everywhere.
13:09Also, these don't use Phillips-head screws.
13:12These use what we call a Pentelobe.
13:15Pentel, as the name implies, Pentel meaning 5,
13:18it uses five points.
13:19That's not the same as Torx.
13:22Torx, we use six points in that kind of a star bit.
13:26Okay, this, we use 5, so you don't want to try to use a Torx on this.
13:31It's a special kind of a screwdriver that you will have to get.
13:35I happen to have one here, and that's what I would use to
13:39pull all the screws out.
13:40I did that all that in advance.
13:41But anyway, the two in the back here, right here on left and right,
13:46these two are a little bit longer.
13:49And those are where the exhaust is, where the fans blow the exhaust out.
13:54They're a little bit longer.
13:55Let me just put these up in comparison.
13:57There's a short one, a short one there, and a longer one.
14:01So the longer ones go in the back, the short ones are going to cover the rest
14:06of the screw holes there.
14:08Okay, so now this one's kind of a trick.
14:10So once you unscrew all of the screws, then you don't want to pull this up and
14:17bend it back.
14:18Okay, you don't want to bend it back this direction.
14:20Okay, it kind of looks like you should, but you shouldn't.
14:23That will bend the metal.
14:25What you do is you pull downwards this direction, like towards where I am.
14:29Okay, so I'm going to pull and it feels a little bit like you're doing it wrong
14:34,
14:34because there's some tension on there and just pull towards yourself.
14:37Sometimes it helps if you kind of pick it up like this.
14:40Oh, there we go.
14:42I don't know if you heard that kind of pop, but it came loose.
14:45I always feel like I'm about to break something, but that is how you do it.
14:49Anyway, now look at this thing.
14:51First of all, since we've been talking about batteries primarily,
14:53where is the battery on this thing?
14:55Well, it's considered a single battery, but it actually uses six different
15:01battery packs
15:02all connected in series on these MacBook Pros.
15:05Here's one, two, three, four, five, six.
15:08It uses six different battery packs, which are in their buy adhesive.
15:13They're not considered user serviceable.
15:15A Mac, or excuse me, an Apple service center might be able to replace these,
15:20but they're not generally considered user serviceable.
15:24Neither is pretty much anything else.
15:26You can replace the touchpad or the touch screen sensor thing.
15:32There's a way to get to that and remove that.
15:35You can replace these fans if one of those were to go out,
15:38but the RAM, you're not going to replace that or upgrade it.
15:43It's kind of baked into the logic board.
15:45Same is true of the processor.
15:47So that's just kind of how Apple does it now.
15:50And this just kind of helps to guarantee, at least for Apple,
15:55that people will buy more when they first buy the laptop.
15:59At least that's my philosophy on it.
16:01Because if I see a laptop now that has 32 gigs of RAM, let's say,
16:07but I think, oh, you know, it's probably enough for now,
16:10but what if I need 64 in the future?
16:12Well, you can't replace the memory modules.
16:14They're not user serviceable.
16:15It's kind of soldered, if you will, into the logic board.
16:18So I have to buy one now that is as upgradable, as upgraded,
16:25as I think it might ever possibly need at any point in the future.
16:29So it kind of forces you sometimes to overbuy possibly.
16:33Same is true of the main storage.
16:35So again, there's no hard drive in here.
16:37It's solid state storage, but it's all, again,
16:40soldered and integrated into the logic board.
16:43There's nothing I can do to upgrade that.
16:46So anyway, that's it.
16:47I mean, these are great laptops.
16:49I really love these MacBook Pros, but not a lot of serviceable components in
16:56them.
16:56Most TC based laptops are much more serviceable, which I'll show next.
17:01Actually, I'll save that for the next video,
17:03because I've probably gone a little bit too long on this one.
17:05So I'll save that one for the next video,
17:07and we'll see what the components are in a more modern, PC based laptop.
Field Replaceable Units: PC-Based
0:00All right, so now what I'm gonna do is go ahead and work on a PC based laptop
0:05This one's old Lenovo. It's a good machine really. It's even though it's I
0:09think five years old or so right now
0:10They were produced in oh
0:122019 and 2020 the specific model you can see it says property of CBT nuggets
0:17We have a pile of laptops and other devices like that. I just had them send me
0:21a pile of stuff
0:22I didn't tell them I was gonna take it apart and possibly destroy it, but hey
0:27They'll find out eventually right might be my last day on the job. Okay, so
0:31with this one
0:32I like it a lot because it's in some ways easier than taking apart the MacBooks
0:38Okay, the MacBooks have those tiny little screws are so easy to lose here
0:42We still have tiny little screws, but they're Phillips said you don't have to
0:46have a really weird, you know
0:47What I call a pentagram. No, not a pentagram
0:49The MacBooks are the anti-Christ of laptops what's it called?
0:55Pentelobe excuse me the pentelobe screwdrivers. This is just a small Phillips
1:01head screwdriver right here, and
1:02I'm just gonna unscrew all of these screws here. These are also captive screws,
1:07so I really like that
1:08So you can't lose it really okay, so I'm gonna unscrew each one of these
1:12I think there's one two three five or six of these you don't have to memorize
1:16that because you know each laptop's different
1:18Some will have I don't know five some will have seven or eight maybe something
1:22like that
1:22So anyway, I'm just unscrewing all of these
1:25Once you do that you may also need a
1:28Spudger you know, I'll show you that that's this kind of thing this one's
1:32actually I use that for cars actually
1:35We can use that for card trim and stuff like that, but it's same idea
1:38A lot of spudgers will have a hook on one end so that you can use it to move
1:43cables around inside of the case
1:44But they're plastic non-conductive
1:46So you don't want to have something metal for example touching other metal
1:50parts inside of the computer case
1:52Or electronic components, but it's usually thin on on at least one end if not
1:57both ends
1:58so you can use the pry in between
2:00plastic separators and parts and and separate tabs and stuff like that
2:05hopefully without damaging it sometimes it happens anyway because
2:09Well plastic can be brittle sometimes anyway
2:13If you don't have a spudger
2:15Which very often comes in electronic
2:20Repair kits and things like this again that you can order off of Amazon or
2:23something like that
2:23You can also use other things. I've seen people use credit cards. I've seen
2:28people use a guitar picks
2:31So it's kind of like whatever's handy. That's thin plastic non-conductive. You
2:36know go ahead and use it
2:36Anyway, I don't think I'm gonna need it in this case because did I do that one
2:40already? Yeah, because
2:42This should come off fairly easily. Let me show you another tip as well. This
2:47is a I can't remember my show you this already
2:49This is a actually a phone holder that I for my car, which I really never wound
2:53up using it
2:53I found it in a drawer never wound up using it for my phone
2:56But it does have a suction cup on it which sometimes that's handy as well
3:01So I'm gonna apply the suction cup right there and then that allows me to
3:05potentially
3:07Lift this cover off a little bit easier if I'm having any struggles with it.
3:11You know, I just realized I forgot
3:13There's a screw right in the middle. So I better do that one as well. Oh my
3:16goodness
3:18Can't walk and shoot them at the same time. That's kind of an old person saying
3:21that what it is. Okay, so now I
3:24Can put the suction cup on there and this helps it to just come off of there a
3:29little bit easier sometimes
3:30So again each
3:34Each laptop can be different, but in this case it might be helpful
3:38So let's take a look at what we've got going on inside of here and also again
3:43I could use our handy little dust blower here
3:46Wow, this is actually this thing's actually pretty powerful if I had hair
4:04I would show you how it could be on both of my hair
4:06As it is I could just shoot it in this year and it would come out this year.
4:10But anyhow
4:12What we got going on here? What can we replace? Okay, let's just kind of take
4:16the grand tour of what we've got in this particular laptop
4:19This is not entirely unique to Lenovo other
4:22PC based laptops will have a similar structure, but they're not all exactly the
4:27same
4:27So for example starting on the edge. This is a speaker. Okay. There's a wire
4:33here that goes across you can see down here
4:36Usually that's hooked into the battery a little bit better. It kind of must
4:39have come loose or something there
4:41Anyway, there's some tabs on the battery that help guide that particular wire
4:46Here is the other end along in the way and the other way
4:49Here's the other speaker on this side over here
4:52And you can also see that there are a few other things going on here like
4:57rubber bumpers
4:58There's some orange rubber bumpers right here. I'm assuming that's for
5:02Helping with shock and stuff like that
5:05Okay
5:06This whole thing right here is the battery
5:09It's a lithium ion battery. It says right there rechargeable lithium ion
5:13battery and I would expect that
5:14That's mostly what everybody's using nowadays
5:16and another thing to keep in mind is that
5:20If you it is serviceable you can replace this battery you can take it out and
5:26Put in a different battery
5:28But you should put in the same branded
5:30Little an oval battery. Okay, of course Lenovo recommends that I guess they
5:35want you to buy their batteries
5:37But it's also a good reason for that because
5:39One of the reasons why a lot of batteries blow up is poor quality control and
5:44that's why they may catch on fire
5:46So Lenovo wants to ensure that
5:48Quality batteries go back in that are under their their QC their quality
5:52control
5:53All right. Now how would I remove this battery? Okay. There are a few screws.
5:58There's one right here
5:59I think there's four yeah four total
6:02So again, it's just a phillips head screwdriver. Now. These are not captive
6:06So I'll put those in my little magnetic tray over here
6:08That went out take this one out by the way, uh, you may notice I'm wearing
6:13black gloves here
6:14Some people like to wear gloves when they work on this kind of stuff
6:17Uh, it might give them a little better grip
6:20Uh, you don't have to be as concerned about oh, you know if I you got hand lot
6:24ion on your hands or something like that or
6:26Or oils in your in your fingertips and stuff like that some electronics might
6:30be sensitive to that
6:31Nothing we're really going to be doing is going to be affected by that
6:35Right now, but nevertheless, I've got them on and
6:36Hold us closer the other reason why I'm wearing them is because
6:40Frankly, I need a manicure. Okay
6:42A manne in a petty
6:45Uh, but no, I've been I've been working on motorcycles and uh
6:48My hands can look better. So anyway, we're taking all this stuff out. You can
6:52go screws out
6:53And then there's another thing we have here. This is this is actually an ins
6:57ulating
6:57um
6:59piece of tape I guess you can call it and
7:02Uh, it's designed to protect the connector here. So if I take that off right
7:06now
7:06I actually want to tell you something before I take that up. Um, I forgot to
7:10mention this earlier
7:11In the bios
7:13On this computer, which I accessed by turning on the power and pressing f1
7:17I turned off
7:19The battery power
7:22For this battery. So in other words, this battery is not being used to charge
7:25Or to power this laptop right now
7:29Uh, it will reset and again start to use this battery as soon as I plug in this
7:34power cable
7:35Into the computer will automatically reset itself to again use the battery, but
7:40it was important to
7:41Uh, you know kind of disconnected at least in bios so that I wouldn't run into
7:46any electrical complications with this, right?
7:48So anyway, I can remove this piece of little tape. It's against called in some
7:54kind of an insulator
7:55Let me get my spudger and we get a lit get a lit
7:58Uh, we get a lift on that and then you can see down right here
8:03This is where the battery actually makes a connection to the motherboard
8:08Uh, this can just lift straight up actually, but it so it feels a little bit
8:12weird because
8:13It's kind of firm in there and there's not really a um
8:18Lever or anything like that to remove it. You just got to lift it straight up
8:22and boy
8:23It feels a little bit weird to do this feel like you're gonna break something
8:26Remember when I said that I might destroy this before I send it back to CBT n
8:29uggets?
8:30Well, there we go. Finally. So that came up. I again. I used my spudger tool
8:34to uh to assist with that and
8:37What else I guess that's it so now I can lift this battery out. I've taken all
8:42the screws out
8:42And I'm kind of also guiding off this this little uh wire that connects these
8:48two speakers on the side
8:50Notice that there are also some rubber foam pieces that are adhesively stuck
8:56onto this as well
8:57He came from the factory that way. Uh that will help with a number of things
9:01shock
9:02um
9:03Vibration so that this does not rub against the case
9:07Remember you don't want to damage the uh, the the
9:10The battery in any way because if it we can start to leak you could again catch
9:15on fire
9:15All that sort of stuff. So we want to avoid that. But anyway, if I bought a new
9:19one
9:19I remember if this was no longer useful and I bought a different one
9:22Uh, I would just have to remember to put these back on there in their
9:25relatively the same locations
9:27There are also these tabs. I hope you can see those. Yeah, there are some tabs
9:31right there. That's where the uh
9:33wire here for the speaker connections would connect to that and also
9:39It also has a place in here where it connects to the case. Okay, so well, we
9:44can see it but right about here
9:47There's there's another tab location there a couple of tab locations there that
9:51this can kind of rest into
9:52To make that connection. So anyway, that's what I would do if I needed to
9:56replace the battery simple enough
9:57Um other things I could release
10:00Uh removal on here. I could remove these speakers if I needed to
10:04Um, I don't know if you could see that but the little bumper there is in a
10:07little
10:08Little gap right there and it uh again helps to protect against shock and make
10:14it seat better into that
10:15This goes on these pegs that are over here
10:17I can get it on straight. I'll put that on
10:21There we go put that on
10:23And also I still need to uh route this
10:25Cable along the battery as well. I probably should have done that before I put
10:29these speakers back
10:30But anyway
10:31Because these my spudged tool to do that again as well. So I'm kind of snapping
10:35down this battery
10:37Onto the
10:38The tabs it's actually helps if I tilt it
10:41And go in this way. You might be able to hear it kind of clicking into place
10:44there
10:45There we go. Okay, so that looks pretty good
10:47Again, I'm gonna just route this using my little spudger
10:51I don't know if that's even an official term. That's just what we call it
10:54Maybe it's kind of slang for
10:56Eaky people
10:58All right, making it happen here. All right. I'm willing to consider that good
11:02enough. Okay. So once that's been done
11:04And let's say I just replaced this battery. I would just take this
11:07Connector once again and place it back down into its original location again
11:12You just got to snap it into place feels a little bit like you're gonna break
11:15it
11:16There we go. So that goes into place there with this little insulating piece
11:21back over it
11:21I don't know if this would really even make a difference if I forgot that or
11:24didn't put it back on
11:25But since that's how it came from the manufacturer
11:28I'll kind of honor their method. There we go. Okay, so that's one thing who
11:33could be replaced now. What else?
11:34Let's go over here. What is this thing right here? That is my Wi-Fi card. Okay,
11:40now
11:40You can probably see here. Let me see if I can move this closer. There's a
11:44couple of leads right there
11:45Those actually go to the antenna and I don't really honestly know where they go
11:50entirely
11:51But a lot of times they will go into the lid
11:54The lid of the monitor and then that circumference of the monitor
11:59Becomes kind of a big antenna. So that's a lot of times where those would go
12:04All right. Anyway to replace that it would be very similar to what I would do
12:08with some other things
12:09I would just unscrew the one screw that's on here and again
12:12Some laptops may have this integrated directly into the motherboard and you won
12:17't be able to replace it many of them though
12:19I think you probably will be able to
12:21Set that screw aside as well
12:24And then all we'd have to do here is to pull this out. Okay out of this little
12:29socket
12:30You can get a little bit of a grip on this and pull it out this way
12:34And now you can kind of see
12:36That it's notched so you can only put it in one way you can't put it in
12:40No upside down backwards or sideways or something like that
12:43And if I needed to replace it, I would simply just do that. Okay, so then I'll
12:48just put it back
12:49I'll press it back into the location where I removed it from
12:52Okay
12:53And then put the screw back in and that's pretty much it. So that's pretty
12:57easily replaceable
12:59Part this this Wi-Fi adapter. It's integrated
13:03That's really not integrated in the motherboard, but that's attached to
13:06A specific slot on the motherboard. Okay, so let's screw that back in again all
13:12of these screws that we use
13:13for
13:16All these components that we're doing here and including in case finger tip
13:19type, you know, you don't need to you know
13:21Hand tighten it real quick. You're likely to strip something out remember a lot
13:26of this
13:27Actually threads into plastic as well
13:29So very easy to strip some of this out. Okay, what else we got? So let's go
13:34back to batteries
13:35This right here is a battery. I'm gonna put it somewhere on this page that you
13:39're looking at
13:40Look look for this if you want but there's a discussion about coin batteries.
13:44This is a coin battery
13:45That's under here. It's underneath this little plastic
13:47Looks like almost shrink wrap, but anyway, it's not that but it's this black
13:51thing
13:52Uh, this is a 2016 I think so 20 means
13:5720 millimeters in diameter so from
13:59So from here to here and then it's a 1.6 millimeters in thickness
14:06Another one that's very common but more common on desktop computers would be a
14:122032
14:13So i'll be 20 millimeters across and 3.2 millimeters in thickness. Okay, and
14:19there's a few others as well
14:21They're the same kind of coin batteries are used for
14:24Broad's door openers and all kind of other stuff. Okay. What else could we
14:29replace here?
14:30Uh, let's take a look here at these fans these fans can also be replaced
14:35So if there's been a problem with them you can do that uh this right here this
14:38little winding
14:39Kind of thing that we see right here
14:42Uh, this is a cooling
14:44System that's used to help cool things like the graphics card and the CPU
14:49We don't have the CPU and view from where we are right here
14:52We'd have to be on the other side of the motherboard to see that and it's not
14:56really user serviceable
14:57Anyway in most cases at least not easily all right
15:01Other things we could do uh, so we've got memory
15:05Grabbing the wrong thing. Okay, we've got memory here
15:08Except there is no memory there. Okay. Uh, I could put another memory module in
15:12here a so dim in that one
15:15Remember a so dim is a single outline dual
15:18inline memory module so dim
15:22And uh, that's also what my teachers called me in grade school. So dim anyway,
15:26uh, this is uh, this is
15:28Uh, the memory module that we have in this computer
15:31Uh, if it's not enough, I can't remember how big this one is, but if it's not
15:34enough
15:34I could easily just add another one over here. You do have to match this but
15:38the specs exactly the same speed
15:41Helps if they're the same manufacturer everything. Okay, because otherwise you
15:45can run into some problems with that
15:47But that's a fuller discussion. We'll discuss more when we talk specifically
15:51about ram in the future
15:53Anyway, to release this I just push these tabs and I think you saw me do that
15:57on maybe that other macbook
15:59Uh, very very similar to that, but just release those and now here it is
16:03Okay, you can see again
16:05It's got offset an offset tab or a notch there in the middle
16:09And uh, that prevents me from installing it and properly how big is this one? I
16:14haven't even run look
16:1516 gigabytes just not very big
16:17Um, I don't even buy any laptops anymore unless they're at least 32
16:21But if I wanted to buy another 16 gigabyte one, I could put it in this empty
16:26slot right over here
16:27And then we would have plenty of room
16:30Uh plenty of memory now the only is
16:32You can't always just decide to put this wherever you want to I can't just say
16:36well
16:36I think I'll put it over here this time just for fun
16:38Uh normally and this is true of most motherboards. There's a specific
16:43Order of memory slots
16:45That you have to populate it in okay. We can't just randomly choose something
16:50Okay, a lot of that has to do with there there are certain pairs that have to
16:55be honored
16:55But we'll get to that later on when we talk more about memory. Okay, so to put
16:59this back in you simply press
17:01Press down into it and then press down on top of this and the the notches that
17:07we're on the side
17:08Automatically go back into place and we're done
17:10way then something like this
17:11Next thing we could replace here would be this right here. This is my main
17:15storage
17:16So remember in that macbook pro I took apart in the last nugget
17:19Uh, it had a physical hard drive
17:22Uh spinning platters in it so that's a smaller form factor a two and a half
17:27inch drive
17:28But spinning platters are slow
17:31Um and not only that but they're also slow. Okay. They're also heavier by the
17:40This is substantially faster and much lighter
17:43That's a big selling point with laptops every laptop manufacturer want the brag
17:48about how light their laptops are how easy they are to just
17:52throw in the backpack and
17:54Order out like a frisbee or something. I don't know. Anyway, so i'm going to
17:57take this out
17:58Uh, we'll talk more in a fuller discussion about this kind of memory
18:02This is uh an m2 form factor m.2
18:07And the kind of memory it is as s s s s s d solid state drive
18:12And it's a specific kind known as nvme which is very very fast
18:16So i'm going to unscrew this little screw right here that which just retains it
18:20into into its place
18:21Pull that out and then this again is very similar to the ram
18:25Uh, you can just kind of pull it out of the slot
18:28This direction
18:30As you can see here
18:32Once again, it's not in just a such a certain way that I cannot install it
18:36improperly
18:37Uh, how big is this?
18:39What say on there?
18:41Gotta say on here somewhere. Let me get my old man magnifying glass out here
18:44Oh, there it is
18:46Five it's right next to that QR code 512 gigabytes. You can probably see that
18:51500 and 12 gigabytes
18:53That's not very big uh by modern standards
18:56Um, once again
18:58I wouldn't buy any laptop with less than a gig with it less than a terabyte
19:02In it, okay
19:03So but again, this is a five-year-old laptop. So all right. Anyway, i'll go and
19:06put that back in
19:07Notice that we do have a slot
19:10For an additional one if we wanted right here under this yellow tape
19:13So if I wanted to put a different new one in I could just pull this back
19:17And then I would install it there sometimes this may be adhesive. I don't know.
19:20I guess I can touch it
19:21That's it's a little tacky
19:24um
19:25and
19:26sometimes these will
19:28uh rest on a kind of a tacky surface not a full
19:31You know like really strong tape but something like a tacky surface like that
19:36or
19:36Sometimes it'll be on some kind of a cushioned
19:38Cushion surface as well. All right. Let me go ahead and put the screw back in
19:43It's hard to see a black screw on black gloves. Where is it? All right, and
19:47then i'll put this uh screw back in to retain
19:50this
19:52Storage when in place. All right. So that's pretty much it for
19:57most of the field replaceable parts that we have here. I'm going to put the
20:01screws back in for the
20:02uh for the battery. Oh, I should point something out as well. I don't know if
20:06you can see that
20:07Let me get a couple of these screws out
20:09So yeah, oops. I just dropped one. I hate it when I do that. Where'd it go?
20:13Ah
20:14Oh, here it is
20:15All right there
20:17A magnetic screwdriver. There we go. Okay. So
20:19What I wanted to point out was these are actually slightly different in size
20:23I don't know if you can see that but one is a little bit longer
20:27than the other one and
20:29You wouldn't really know
20:30If you didn't keep track of it, which one went into which one of these holes
20:35uh most uh laptops these days you can't go to the support pages
20:40and get like a
20:43service manual for the laptop
20:46I actually looked that up
20:48Uh because I wasn't sure which one it went in and it tells me that uh, I think
20:52these shorter ones are four millimeters
20:54And they go on the outside
20:56Like there and there and these two inside ones are six millimeter screws
21:00So there's are the longer ones and that's where they go
21:03Right. So you do want to make sure that you don't do that incorrectly because
21:08especially in
21:10Really tight spaces like what you see in a laptop
21:12If you put a screw in that's too long
21:15It could poke through and damage something on the other side of this
21:19motherboard
21:21So you gotta not be too haphazard with that. Don't ask me how I know about that
21:25. Okay. All right put it in the last screw right here
21:28That's pretty much it for that part of things. Next thing I need to do is just
21:33replace the
21:33The case the the back case for this particular laptop
21:38I don't know if you can see it probably can there are tabs here
21:42So those have to be placed into the case here
21:47Those kind of set it into place properly
21:49And then I try to lay it down evenly
21:52And make sure that the screw holes are all lined up that there's no one usual
21:57gaps or bulges
21:57Um, you know, the bulge might mean that I actually left something in there
22:02The uh a tool or something like that
22:05Or it could mean that it's not lined up properly or that something it's inside
22:09of there is not installed properly
22:10Uh, and then the next thing I do this is true of lots of different kinds of
22:14things in mechanics
22:15And with this sort of thing as well
22:17Is you want to do as much as you can have like a star pattern?
22:21Okay, you don't want to tighten them all just tighten this one and tighten this
22:24one then tighten this one
22:25Uh, it just lines up a little bit better and it torques a little bit better if
22:29you can
22:30Screw these down
22:33In a kind of a diagonal or star shaped pattern
22:36So I started at this upper left corner
22:39So the closest I can get to the lower right would be probably this one over
22:42here
22:42There's not one really clear down here. So let's go to this one and that's
22:45pretty good there
22:46Screwing that down again fingertip tight doesn't have to be super tight
22:50Uh, I don't know if you saw but a lot of these screws will have a Loctite on
22:54them
22:54It's tiny a little bit of blue a Loctite
22:57Let me go to this diagonal this time. I guess and so I don't know if you can
23:01hear that
23:01But you can also hear some tabs
23:04Setting into place when I'd screwed that down
23:07Down here now. I guess right that's good. And one right here in the middle
23:12All right, that's in place and then this one and then after that, I think I
23:16have one more
23:16One more right here. There we go. All right
23:20And uh, that's it. So this laptop would now be ready
23:24to be put back in the service
23:27Like I said, I need to plug the power in which will auto also automatically
23:32Reset the bios so that it can recognize the battery again
23:36And then it should boot up just fine
23:39And now you can see I have successfully turned on this computer
23:42We get a little desktop going right here
23:45So we do have success in properly booting up this computer after we put it back
23:50together by some miracle
23:51I did not destroy this laptop
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