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I mean think back to when you were a kid

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00:00:02,480 --> 00:00:08,520
What sounds more fun than like one of those cool ride-on power wheels things?

3
00:00:09,440 --> 00:00:12,680
I've noticed the fact that this is not a brand name power wheels

4
00:00:12,680 --> 00:00:19,200
This is a cheap Chinese knockoff, but that's not the point of today's video. The point of today's video is what's more fun

5
00:00:19,920 --> 00:00:22,420
than one of these power wheels ride-on things a

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00:00:23,220 --> 00:00:28,360
souped up one and as it turns out

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00:00:28,360 --> 00:00:33,520
You can make them go double triple or even quadruple as fast

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00:00:34,160 --> 00:00:36,160
Simply by overvolting them

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00:00:36,880 --> 00:00:41,880
Now you could do that by just buying yourself a in this case

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00:00:41,880 --> 00:00:47,900
This is a 6-volt model so a 12-volt battery at the hardware store and plugging it in

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00:00:48,320 --> 00:00:54,060
But this is Linus Tech Tips so instead of that I decided to order myself a

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00:00:54,820 --> 00:00:55,900
DIY

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00:00:55,900 --> 00:01:00,560
lithium battery kit

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00:01:00,560 --> 00:01:01,380
Let's

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00:01:01,380 --> 00:01:04,540
see how this goes

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00:01:06,760 --> 00:01:13,880
Pulseway Pulseway lets you remotely monitor and manage all of your Windows Mac and Linux machines from one app

17
00:01:14,160 --> 00:01:16,940
Create your free account today at the link in the video description

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00:01:18,000 --> 00:01:29,660
Now I hadn't originally planned to do a video about this

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So you guys are gonna have to forgive me if I am not as prepared as even I normally am

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00:01:35,760 --> 00:01:41,220
But I am going away to Disneyland in three days

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00:01:41,340 --> 00:01:44,960
And I need to queue up enough videos for a while. I'm gone

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00:01:45,640 --> 00:01:47,340
Real talk real talk right now

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00:01:47,340 --> 00:01:53,640
And I was telling Ed about this plan that I had to sort of trick out one of our power wheels

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00:01:53,640 --> 00:01:58,380
Not actually this one and he was like, oh we should we should do a video about that and I was like, oh, yeah

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00:01:58,380 --> 00:02:04,440
I mean, I'm still kind of like learning and I really don't know if this is the most optimal way to do it

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00:02:04,440 --> 00:02:06,840
And he's like, oh, yeah. No, it sounds like a video

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so

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basically what I've ordered here

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00:02:11,340 --> 00:02:16,100
So these are 18 650s. These are 3,500 milliamp ones. I think they're from

30
00:02:16,720 --> 00:02:21,140
Samsung it's either Samsung or LG chemical on or whatever. They're like

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Chemicals like division is there's either Samsung or LG cells and then these are high current ones because

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00:02:28,650 --> 00:02:34,590
Not on this one, but actually on the two-seater that I am planning to have all of this end up in

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00:02:36,330 --> 00:02:40,730
You can actually see some pretty impressive peak power draw so I got a bunch of these

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00:02:41,780 --> 00:02:44,980
Then I picked myself up

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00:02:46,170 --> 00:02:52,200
this puppy so this is the

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charging

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00:02:56,760 --> 00:02:59,820
Controller board that you need any time you're building a lithium battery

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00:03:00,340 --> 00:03:04,200
And I can't remember if this is a balance charger or not

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00:03:04,200 --> 00:03:09,260
So I'm gonna have to look that up so I can determine exactly what type of charger I need to use on it

40
00:03:09,260 --> 00:03:11,260
I do have a balance

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00:03:12,100 --> 00:03:15,940
Lithium battery charger at home, but I forgot to bring that today

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00:03:17,290 --> 00:03:18,910
All right.

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00:03:18,910 --> 00:03:20,030
Ah, yes, you can see here,

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00:03:20,030 --> 00:03:22,890
this is for seven cells in series.

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00:03:22,890 --> 00:03:25,850
So parallel determines how much capacity you have

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00:03:25,850 --> 00:03:28,510
and series determines what the voltage is gonna be.

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00:03:28,510 --> 00:03:30,950
So this is a six volt model

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00:03:30,950 --> 00:03:33,530
and I'm gonna be hitting it with about 24 volts.

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00:03:33,530 --> 00:03:35,350
So we're gonna burn it out pretty quickly,

50
00:03:35,350 --> 00:03:38,710
but realistically I was gonna get rid of this one anyway.

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00:03:38,710 --> 00:03:41,950
The idea is to make the Jeep power wheels

52
00:03:41,950 --> 00:03:44,430
that I have at home go twice the speed

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00:03:44,430 --> 00:03:47,510
and we'll making this one go four times the stock speed.

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00:03:47,510 --> 00:03:51,030
This is one of the kits from Veruzend,

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00:03:51,030 --> 00:03:53,670
V-Ruzend, I don't know what they,

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00:03:53,670 --> 00:03:55,110
I don't know how they pronounce their thing,

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00:03:55,110 --> 00:03:59,510
but basically resists vibration loosening.

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It's safer.

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00:04:00,470 --> 00:04:01,970
Hey, it's safe.

60
00:04:01,970 --> 00:04:02,810
Oh, yay.

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00:04:02,810 --> 00:04:05,950
What we're doing today, building a lithium battery pack.

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00:04:05,950 --> 00:04:09,730
It's a modular lithium battery pack kit.

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Just chill.

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00:04:10,570 --> 00:04:12,090
It's all good, don't worry about it.

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Fully customizable.

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00:04:13,070 --> 00:04:15,910
Where's the guide?

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Don't we have a bunch of like 12 volt batteries

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00:04:18,210 --> 00:04:19,530
just like sitting in one-on-one?

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00:04:19,530 --> 00:04:24,060
Yes.

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00:04:24,060 --> 00:04:27,800
Well, A, I'm building a 24 volt battery,

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which yes, I know.

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00:04:30,260 --> 00:04:35,160
And B, I wanted the weight and quick charging

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00:04:35,160 --> 00:04:38,160
and I just wanted to do it this way because it's fun.

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00:04:38,160 --> 00:04:39,000
Okay.

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00:04:39,000 --> 00:04:40,680
To turn this bunch of cells into a battery,

76
00:04:40,680 --> 00:04:43,000
we need to wire together all of the cells correctly

77
00:04:43,000 --> 00:04:46,080
to get our 29 volts and 30 amps at full charge.

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00:04:46,080 --> 00:04:48,440
To do this, we'll be creating a 7S3P battery,

79
00:04:48,440 --> 00:04:50,500
meaning there'll be seven cells wired in series

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00:04:50,500 --> 00:04:51,900
and then three of those wired in parallel.

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00:04:51,900 --> 00:04:54,800
Construction of the battery is pretty simple.

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00:04:54,800 --> 00:04:56,660
Although if we wire up one cell incorrectly

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00:04:56,660 --> 00:04:58,600
or even just drop a nut or touch a screwdriver

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00:04:58,600 --> 00:05:00,020
across the wrong place,

85
00:05:00,020 --> 00:05:02,700
we risk causing a ShortCircuit that could electrocute us

86
00:05:02,700 --> 00:05:05,000
or at worst cause the battery to explode.

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00:05:05,000 --> 00:05:06,760
Someone's going to blow themselves up.

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00:05:07,850 --> 00:05:09,890
Okay, I think we should do the things first

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00:05:09,890 --> 00:05:12,270
and then put cells in.

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00:05:12,270 --> 00:05:16,050
So then theoretically, we can take your whole thing

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00:05:16,050 --> 00:05:19,620
and blippity bloppity.

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00:05:19,620 --> 00:05:21,580
Hold on, let me help you get that aligned.

93
00:05:21,580 --> 00:05:22,420
Okay.

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00:05:22,890 --> 00:05:24,870
Do we have a rubber mallet here?

95
00:05:24,870 --> 00:05:27,370
No, we're not rubber malleting these.

96
00:05:27,370 --> 00:05:29,390
Why not?

97
00:05:29,390 --> 00:05:30,510
Because we're not.

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00:05:30,510 --> 00:05:32,390
Because that's not a good idea.

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00:05:32,390 --> 00:05:33,690
Well, I don't know, maybe.

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00:05:34,910 --> 00:05:36,410
It's pretty hard to push on.

101
00:05:36,410 --> 00:05:37,730
We did this three more times

102
00:05:37,730 --> 00:05:40,630
and got what seemed like should be a ready to wire up battery

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00:05:40,630 --> 00:05:43,050
until we actually thought about it.

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00:05:43,050 --> 00:05:44,130
It's really easy.

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Before you begin though,

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make sure you understand how series

107
00:05:46,110 --> 00:05:47,790
and parallel electrical connections work.

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I want to brush up on the subject,

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blah, blah, blah, blah, blah.

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Don't ShortCircuit, that's bad.

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Got it.

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00:05:52,470 --> 00:05:53,310
I wanted series.

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00:05:53,910 --> 00:05:55,090
Parallel.

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00:05:55,090 --> 00:06:06,120
Wouldn't I need to go from here to here though?

115
00:06:06,120 --> 00:06:11,120
Oh, that makes sense.

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00:06:11,620 --> 00:06:16,600
In order to do that, you need to do every row.

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Oh, this is easy.

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00:06:18,340 --> 00:06:20,700
Oh, maybe.

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00:06:20,700 --> 00:06:22,060
Well, let's find out.

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Oh, they have videos.

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Okay.

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We'll be back in a minute here.

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00:06:30,370 --> 00:06:32,370
We're gonna watch some YouTube to learn.

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Tinted that if we flip around every second cell,

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creating the connections will be super easy

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00:06:36,910 --> 00:06:39,450
by just placing the bus bars across the top.

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So the good news is we weren't that far off.

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Pretty much these bars go on

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and we make all the parallel connections between ourselves.

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Oh, yeah.

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00:06:51,240 --> 00:06:52,400
Like it ain't no thing.

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I'm, hold on.

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00:06:53,240 --> 00:06:55,560
I'm just trying all my contacts here.

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We good, we good, we good, we good.

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Yep.

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Beautiful.

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00:06:59,920 --> 00:07:02,160
Now we have to attach the...

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00:07:02,160 --> 00:07:04,160
These ones?

139
00:07:04,160 --> 00:07:04,980
Yeah. I don't know.

140
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I don't know.

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00:07:06,180 --> 00:07:07,940
So let's, we're gonna watch,

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we're gonna watch this other video now.

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BRB.

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00:07:11,560 --> 00:07:13,840
All right, so we ran out of time yesterday.

145
00:07:13,840 --> 00:07:15,760
It's day two, but there's some good news.

146
00:07:15,760 --> 00:07:19,900
I was able to bring in the actual car that I intend to use.

147
00:07:19,900 --> 00:07:22,780
So this one shouldn't fry immediately

148
00:07:22,780 --> 00:07:26,040
when we hook this battery up, but there's some bad news.

149
00:07:26,040 --> 00:07:29,860
So I had planned to either hook this up

150
00:07:29,860 --> 00:07:31,680
with the battery management system

151
00:07:31,680 --> 00:07:35,460
for a single input charging, or I had planned

152
00:07:35,460 --> 00:07:38,220
to hook it up with this doodad

153
00:07:38,220 --> 00:07:40,980
and then use a balance charger like this one.

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00:07:40,980 --> 00:07:46,040
But I forgot this is a maximum 6S balance charger.

155
00:07:47,420 --> 00:07:49,180
So this won't work,

156
00:07:50,160 --> 00:07:53,660
which means we're gonna have to use the BMS,

157
00:07:53,660 --> 00:07:55,400
except for one small problem.

158
00:07:55,400 --> 00:08:00,200
We can't find a single power adapter in the building

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00:08:00,200 --> 00:08:05,200
that is, so you don't take the 3.7 volt nominal voltage.

160
00:08:05,520 --> 00:08:08,120
You take the 4.2 volt charge voltage.

161
00:08:08,120 --> 00:08:12,300
So this thing can't take magically like a 12 volt input

162
00:08:12,300 --> 00:08:14,040
and turn it into 30 volts.

163
00:08:14,040 --> 00:08:17,560
You need an actual like 30 volt charger.

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00:08:17,560 --> 00:08:21,740
And 7S as far as I know is a pretty oddball configuration.

165
00:08:21,740 --> 00:08:27,510
So I'm not sure how we're gonna charge it,

166
00:08:27,510 --> 00:08:30,300
but I'm gonna start to wire it up anyway.

167
00:08:30,300 --> 00:08:32,360
I found a 33.6 volt one.

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00:08:32,360 --> 00:08:34,530
Do you think it would work?

169
00:08:34,530 --> 00:08:36,050
33.6?

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00:08:36,050 --> 00:08:37,130
Yeah.

171
00:08:37,130 --> 00:08:37,970
I don't know.

172
00:08:37,970 --> 00:08:38,710
What do you think?

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00:08:38,710 --> 00:08:39,550
What do you think the tolerances are like

174
00:08:39,550 --> 00:08:42,710
on something like this for input?

175
00:08:42,710 --> 00:08:44,170
Probably fine.

176
00:08:44,170 --> 00:08:46,770
We have 29.4, is that what we were looking for?

177
00:08:46,770 --> 00:08:48,290
29.4, yeah.

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00:08:48,290 --> 00:08:50,370
I knew those stupid hover shoes

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00:08:50,370 --> 00:08:53,000
were gonna come in handy for something.

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00:08:53,000 --> 00:08:55,240
We're gonna cannibalize the charger.

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00:08:55,240 --> 00:08:56,540
Cannibalize it?

182
00:08:56,540 --> 00:08:57,860
Well, yeah.

183
00:08:57,860 --> 00:09:00,240
Well, yeah, cause I don't have a socket for this.

184
00:09:00,240 --> 00:09:03,600
So first things first.

185
00:09:03,600 --> 00:09:09,120
All the balance wires are on.

186
00:09:09,120 --> 00:09:10,490
There we go.

187
00:09:10,490 --> 00:09:13,370
And my negative,

188
00:09:13,370 --> 00:09:14,250
I believe this is negative.

189
00:09:14,250 --> 00:09:16,370
Negative charging, yep.

190
00:09:16,370 --> 00:09:19,910
My negative charging wire is soldered.

191
00:09:19,910 --> 00:09:22,120
Now what I need to do

192
00:09:22,120 --> 00:09:24,560
is throw on two positive wires

193
00:09:24,560 --> 00:09:26,000
to the opposite terminal here.

194
00:09:26,000 --> 00:09:27,180
So to the positive terminal

195
00:09:27,180 --> 00:09:30,440
at the other end of the battery.

196
00:09:30,440 --> 00:09:31,980
One of those will be for charging.

197
00:09:31,980 --> 00:09:34,210
One of those will be for discharging.

198
00:09:34,210 --> 00:09:36,550
Now I realize I'm opening myself up

199
00:09:36,550 --> 00:09:41,840
to some soldering technique critique here,

200
00:09:41,860 --> 00:09:43,660
but this is how it's going on.

201
00:09:43,660 --> 00:09:44,980
Alex, do you wanna solder me?

202
00:09:44,980 --> 00:09:46,440
I'm sorry.

203
00:09:46,440 --> 00:09:49,670
Let's go for a solder bath.

204
00:09:49,670 --> 00:09:50,630
Okay, that's lots.

205
00:09:51,630 --> 00:10:00,750
Oh man, I can feel the cringing.

206
00:10:00,750 --> 00:10:02,770
Just wait till The Verge does this.

207
00:10:02,770 --> 00:10:04,450
That'll make me feel better.

208
00:10:04,450 --> 00:10:07,210
So we've got our eyebrow tweezers

209
00:10:08,210 --> 00:10:10,970
and our butter knife.

210
00:10:10,970 --> 00:10:12,370
Okay, don't include that last bit.

211
00:10:12,370 --> 00:10:13,850
We don't wanna be too mocking of The Verge.

212
00:10:13,850 --> 00:10:16,210
We're not trying to make enemies in the industry.

213
00:10:16,210 --> 00:10:17,690
I don't have Captain Tape.

214
00:10:17,690 --> 00:10:20,870
We really need to get some more electronics project crap.

215
00:10:20,870 --> 00:10:22,170
So I'm gonna go get packing tape

216
00:10:22,170 --> 00:10:25,120
just cause I need to keep those wires out of the way.

217
00:10:25,120 --> 00:10:26,220
For all the viewers out there

218
00:10:26,220 --> 00:10:29,630
who know what they're doing with this stuff,

219
00:10:29,630 --> 00:10:31,510
make it better or worse,

220
00:10:31,510 --> 00:10:33,310
that in many cases I know the right way,

221
00:10:33,310 --> 00:10:44,730
but I'm doing it this way anyway.

222
00:10:44,730 --> 00:10:45,810
Now they say in their guide,

223
00:10:45,810 --> 00:10:47,150
you don't have to solder this,

224
00:10:47,150 --> 00:10:52,490
but I think that's really stupid personally.

225
00:10:52,490 --> 00:10:57,550
I think advertising, stop it.

226
00:10:57,550 --> 00:11:01,410
Okay, stop doing that.

227
00:11:01,410 --> 00:11:02,250
Oh, nice.

228
00:11:02,250 --> 00:11:03,970
Now typically hat nuts aren't reusable,

229
00:11:03,970 --> 00:11:06,850
but I managed to kind of crush it back on there.

230
00:11:06,850 --> 00:11:07,690
Okay.

231
00:11:08,170 --> 00:11:09,230
All right.

232
00:11:09,230 --> 00:11:11,350
So we can test then.

233
00:11:11,350 --> 00:11:13,870
Well, first I'm gonna have to show you guys

234
00:11:13,870 --> 00:11:16,470
the before of course.

235
00:11:16,470 --> 00:11:22,140
Here we go.

236
00:11:22,140 --> 00:11:23,520
See, pretty boring.

237
00:11:27,550 --> 00:11:34,190
This is not the recommended way of doing this.

238
00:11:34,190 --> 00:11:37,420
Again, if you wanted the recommended way,

239
00:11:37,420 --> 00:11:50,300
would you be watching my video?

240
00:11:50,300 --> 00:11:52,060
Oh, we're gonna ruin our floors.

241
00:11:52,060 --> 00:12:02,200
Here we go.

242
00:12:02,200 --> 00:12:04,160
There's no steering on this floor.

243
00:12:15,700 --> 00:12:16,980
How's my phone?

244
00:12:16,980 --> 00:12:18,360
Is my phone okay?

245
00:12:19,290 --> 00:12:23,400
Oh, it sticks out of my pocket sometimes.

246
00:12:23,400 --> 00:12:25,480
It's okay.

247
00:12:25,480 --> 00:12:28,280
So that hat nut, not a great solution,

248
00:12:28,280 --> 00:12:29,880
just bending it back.

249
00:12:32,840 --> 00:12:35,180
So this is our pre-test.

250
00:12:35,180 --> 00:12:37,060
This is with the original battery,

251
00:12:37,060 --> 00:12:39,320
which has like a somewhat fresh charge.

252
00:12:39,320 --> 00:12:43,220
It's not super fresh, but it's not like the worst either.

253
00:12:43,220 --> 00:12:53,650
So reverse, first gear, second gear.

254
00:12:53,650 --> 00:12:58,030
Now it's really important for a reliable operation to install,

255
00:12:58,410 --> 00:13:02,330
people do either 30 amp or 40 amp breakers in these things,

256
00:13:02,330 --> 00:13:03,390
but I'm gonna do that later

257
00:13:03,390 --> 00:13:06,090
when I do my whole ESC upgrade

258
00:13:06,090 --> 00:13:08,830
with the sewing machine pedal and all that kind of stuff.

259
00:13:08,830 --> 00:13:13,040
So this stock connector no longer has any use.

260
00:13:13,040 --> 00:13:17,850
We are wired up now, baby.

261
00:13:17,850 --> 00:13:19,470
Oh, that's reverse.

262
00:13:19,470 --> 00:13:24,240
It's definitely faster.

263
00:13:24,240 --> 00:13:26,700
That's first gear.

264
00:13:26,700 --> 00:13:28,760
And we need to move over to unit 101.

265
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Let's turn it up to high gear.

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00:13:38,890 --> 00:13:39,730
Woo!

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00:13:39,730 --> 00:13:44,880
Oh! Oh!

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00:13:44,960 --> 00:14:01,060
That was an undesirable.

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00:14:01,060 --> 00:14:02,500
This is really hard.

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00:14:02,500 --> 00:14:07,550
I can't even use, I can't even use my foot.

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00:14:07,550 --> 00:14:08,390
Oh really?

272
00:14:08,390 --> 00:14:09,230
No, I'm just using my hand.

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00:14:09,230 --> 00:14:13,700
Oh Lordy.

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00:14:13,700 --> 00:14:15,480
There we go.

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00:14:15,480 --> 00:14:16,320
Oh yeah.

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00:14:21,690 --> 00:14:22,530
J-turn.

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00:14:24,500 --> 00:14:32,050
Oh, I tried to throw it in forward.

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00:14:32,050 --> 00:14:35,470
Wow, the traction's actually pretty good out here.

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00:14:35,470 --> 00:14:36,410
So there she is.

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00:14:36,410 --> 00:14:37,730
She's a little toasty.

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00:14:37,730 --> 00:14:41,730
She's definitely ready to be left to cool and then charged.

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00:14:42,090 --> 00:14:44,930
And that's it.

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00:14:44,930 --> 00:14:50,000
That's a DIY battery for better or for worse.

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00:14:50,600 --> 00:14:54,040
And this whole mess is brought to you by Memory Express.

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00:14:54,040 --> 00:14:55,700
Memory Express is the place to go

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00:14:55,700 --> 00:14:58,840
if you need any kind of electronics products in Canada.

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00:14:58,840 --> 00:15:03,060
They've got computers, tablets, phones, home theaters,

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00:15:03,060 --> 00:15:05,240
pretty much you name it, and they've got it.

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00:15:05,240 --> 00:15:07,240
And with their Uber price beat guarantee,

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00:15:07,240 --> 00:15:10,380
they will beat any price both in-store and online

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00:15:10,380 --> 00:15:11,640
from a Canadian retailer.

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00:15:11,640 --> 00:15:12,440
So go check them out.

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00:15:12,440 --> 00:15:15,120
You can get them at the link in the video description.

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00:15:15,120 --> 00:15:16,020
So thanks for watching guys.

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00:15:16,020 --> 00:15:18,080
If you disliked this video, you can hit that button.

296
00:15:18,080 --> 00:15:19,740
But if you liked it, hit like, get subscribed,

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00:15:19,740 --> 00:15:21,400
or maybe consider checking out where to buy the stuff

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00:15:21,400 --> 00:15:23,840
we featured at the link in the video description.

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00:15:23,840 --> 00:15:25,020
Also down there is our merch store,

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00:15:25,020 --> 00:15:26,180
which has cool shirts like this one

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00:15:26,180 --> 00:15:29,080
and our community forum, which you should definitely join.