Video Time today is going to be a short one. I'm just going to show you a test of what I'm doing here. As you know, there are many 18 650s floating around right now. So I thought why don't I make uh a project to make to help people make those batteries or cells into batteries, right? battery packs and so this is what came out.

There's a lot of iterations, but this is the latest one and uh, it's symmetrical and uh, this one's bad because we didn't do it right until so this didn't pass the test. but it's great to show you what's happening here. So in the search for making things simpler and easier to build, what I've decided to do is try this thing where I'm gonna have to compress them. These are gonna lay out like this next to each other, right? and so I thought, well okay, we just put screws in here and that's how the current goes from one module to the next one.

but because we're compressing them with these, uh, you know all threads, uh, big long screws or bolts and stuff. Uh, why don't I try and see if I can simply use the compression to be able to transmit the power from one module to the next and I thought is that possible I don't know if I want to try that. Obviously there's uh, some down to that right that if you don't you might not be able to catch it if there's not enough pressure. Uh, if it's not evenly applied, There's like all kinds of things that could happen.

but I want to give it a try at the very least, Right before saying that it's not going to work because it might just actually work quite well. And so that's what these modules are. They have this exposed piece right here and then I have gone and put a one little strip of nickel in here. So that means that this portion and this portion right here.

the stuff that actually I want to transmit is the part of this flat plane right here that is sticking out. you know, further out right. And so that means that it's going to make sure that that is the part that is touching and is going to have some pressure now. I don't know it's going to be enough pressure I Don't know.

we're going to do a test. So here what you see here is seven modules this way and then seven modules this way. This is a 14s module now and this is uh, how. uh, I'm envisioning this battle records.

That's what we. That's what everybody needs. Everybody needs a 48 volt. That's what is popular and it works with all the inverters and stuff like that, right? So that's what we're doing here.

Uh, now these are compressed already I have torqued these. There's nothing connecting the one module to the next other than just these, uh, exposed little pieces of nickel in between each one of these modules. So uh, what I'm going to do is I'm going to load it up today. And the target for this battery is 100 amps I Want them to be able to do 100 amps? Uh.

Also, there's a bunch of other stuff they're doing. We're like using a PCB over here to transfer from this side to that side. the same thing, it's just with compression. uh and these uh, pieces that are supposed to uh, conduct the the power uh are in between this two bolts right here.

which is probably where most of the torque is gonna be seen right? Um, now these are exposed too so they are touching, but there's no pressure in there right? I mean in the future if this works really well, we could even take these off. but I think just in the Uh I think it would be a good idea to leave them there. They don't hurt. and so in case that one of these batteries is not, even though you torque it, it's not conducting power from one module to the next, then you simply could throw a bolt in here and then uh, then that would help it right? So of course these I'm trying to make this super simple so you don't use a bunch of wires and all this other stuff including when you put the BMS in here and so this is part of that.

this is this connects. There's wires in here, but this is not the way I want to do it. this is just because I haven't nailed the design now, but it or eventually we're just gonna lay that board in there and then just put a couple solder points in there for each module and then we're going to be on. You know, we're going to be on online connecting these and then I'm going to put connectors in here to be able to put the BMS and then they're all labeled.

stuff, you know? So all good, good stuff. This board in the front too is going to be the same thing. is going to be two layers in the top. Whatever is gonna.

we're gonna put a BMS through here through one side and then a uh circuit breaker on the other and that's what this hole is here for. But I this design is kind of early. I have another one that is working. So today we're just going to be testing the conductivity right.

Will it? Do some amps? and I've done some preliminary tests and it's looking good. That's why. uh, at this point I'm like, well, the only thing left is to try the full battery and then, uh, see if we can do full power. So I don't know if we're gonna be able to do full power today.

I think these ones do 30 amps each so we could be uh close, very very close. Uh I Actually though, at this voltage it might be 20. so two four six so we might be around 60 amps. Let's run this test.

see what it does? We have the clamp in there. Also another thing that I want to test to see if uh, these two wires which are 10 gauge are going to be sufficient enough to do very short uh runs within the battery to trans to conduct uh 100 amps. So we're gonna be looking. We're gonna be looking at those two.

Okay, starting the test all right. We have connected the other two so if it's 900 at that, so 3 000 Watts, we'll see what 3 000 Watts looks like the battery is not fully charged. it's still at 3.5 volts 700. this one's at zero.

Why is this one at zero? All right. 67 amps, 89 amps, 86 Voltage is still pretty good on the cells and we're looking at Oh 111 right there at the exit point. right here at the exit point. Right here.

111 amps degrees Fahrenheit is not very high. Okay, so we see heat here at the exit point and then we see heat back here where it's just a PCB board that's going across there. but the cells. So I mean they're 90.

not even that bad. They're slightly warm to touch. Uh, and we don't see no hot spots here. You would see two hot spots there, one there and one in here, but we don't see that on the other side also.

no we see the hot spots over here, but we don't see them there and here. Which means that, Uh yeah, this compression thing really works. It works really well. You gotta try the full on test but I gotta charge this battery and then, um, try it again.

So there you go. This looks very, very promising. We, uh, virtually didn't see any heat from here from in between the things. Uh, and we would have seen some on the edges here if that was the thing.

but uh, the only heat we saw was from here and there. This battery module. this battery pack is going to be 48 volts. uh, 100 amp hours right? So pretty much almost the same as all the other ones that are on the market that are 48 rack mountable.

It's gonna have pass-through terminals, is going to have circuit breaker is gonna have a screen an LCD screen. It's gonna have communication to talk to the inverters. It's going to have a nice steel box. This is going to be a legit rack mount, five kilowatt hour battery and it's gonna have a legit BMS Just like all the other ones like the Eg4s and all the other brands that are out there and stuff and it's going to be so easy to build is going to be really easy.

Uh to get these modules and put them together and put them in the box and stuff right? I Can't wait to finish this! This is just a simple test that I've been doing and I just wanted to share with you guys. Stay tuned for this project. This is coming up pretty soon. All right.

thank you for watching these videos. We'll see you guys on the next one. Bye Oh foreign, foreign. Oh by the way, if you have HBO Max make sure you watch Driver Downey Dream Cars I have an episode where I converted a BW bus into a fully electric car and then we went and shot the episode and stuff and we'd run around in the beach and stuff like that.

So if you have HBO Mac my episode will be released I think mid July but you can go and watch the first and the second episode right now and I think the second and third episodes will be released this week. Alright so today is the day that we do uh the red carpet and we see the first episode. but I mean also classic cars are a pain in the ass.