Hey there, it's time to build some batteries. Let's build a 48 volt. Uh, lithium phosphate battery. All right.

So here are our batteries. It's gonna be 16 of these. Lev Uh, 60, Dash F They terminal phosphate sells and then we're gonna use our compression plates here. these are the ones for the 48 volts and then our bus bar kit right and then the spacers that you have to put on the bottom of this to elevate it and then our fish paper that is going to go in between all the cells.

So first we start by reorienting the cells according to what needs to be here to make the 48 volts right. So we start with a positive negative and then positive negative. So Positive, Negative, positive, negative, positive, negative, positive, Negative right? So on this side, it starts with a negative on this on the bottom here. so we'll put it right there and then it just changes right? Pause a negative, positive, negative, positive so that we'll do that.

Positive, negative, positive, negative, positive, negative, Positive. There we go. All right now that we have that. Then just like we have picture here on the bus bar kit, it shows you where the spaces are going to go.

These are all 55 millimeter spacers and then this one, it's 43 millimeter and then uh, these are the single ones. So here are the spacers, The 55 ones here, The the 43 ones is right here so we can put those over here and then Corner top over there another one here and we're using two of these so that we can. Um, the thickness of two of these boards. So here's two singles.

Here's another two singles there. and then we go here. and this little cut right here goes on here. So that because this protrudes so we have to, that's keep for clearance there, right? So you have to put them that way.

Oh yeah, and don't forget your paper. So you have to slide this paper in between all your cells. There we go. This is an isolating paper, just a barrier so that your cells don't ever short out and then the short ones are going to go in between here.

All right. Next, we're gonna put this big um bus bar board on top here. And then the last thing, we'll put our compression thing. So these, uh uh version.

the latest version of these are have elongated holes to make it easier. The last one, the first generation of these were a bit tight to put on there, so this one should be easier. Next, we put lock, washers and nuts on this. Don't tighten them yet until you put the compression plates.

Thank you. We put the plates to put the fish paper in between to isolate them. We put these all threats. By the way, some people were saying that we should put maybe shrink wrap on those screws here.

Yeah, you could do that. You could put shrink wrap, but the way these are designed, they're not touching the cells. And so before you tighten everything, make sure that it's aligned correctly and you have the same amount of, uh, space between this cell and this cell. this side.

and that side, right? So there's space right there. So now we can tighten it all right. Now that we got this all tightened up right here, right? They're tensioned. uh.

and you can pick up this battery that's a single unit. now. Now we need to tighten all the bolts in here. Okay, last thing, Connect your cables.

now. be careful here because these are really close to each other so you could easily short stuff out. I would tighten this one first so it doesn't swing over and accidentally touch. Check all the other ones to make sure that I don't forget one.

All right, And there is our 48 volt battery. This is uh, 74 amp hours, right? 48. What is that? Like Foreign? All right. So this one's about 80 pounds and so you? Yeah, I would suggest you use like I did help so that you can put it up in the wall if that's what you're gonna do right? That's pretty compact compared to all the other batteries that are wall mounted like this.

but uh, it's only three and a half kilowatt because in 74 amp hours by 46, 48 volts, right? and so. But of course you could always just put more and you can double Your Capacity That way, three and a half Two of those will be like seven kilowatt hours and you can tie them in parallel. You can use the BMS in the future, I will show you how to put a BMS to this plate here, how to attach it there and then you can run the native to it through it and then you know, run all the cables to this uh green, uh, these are good because they you don't have to solder them, they will come with them soldered in here from uh from here on and so you'll be able to just, uh, splice your cables, put them in there, and tighten the little screw and then you're good to go now. and they're all label and stuff to make it really easy for you to do this.

They also this bus bar has a um the diagram here just in case you don't understand what these numbers are and if they're different than your BMS different companies like to label these as different. these are I like to use them a C because they're Center Taps but a lot other people use a B as A. You know it's like a negative from the one cell the front cell, but it's a positive so you know there's different ways to name faming these. Uh, Taps here those Balance Taps and so in case you don't understand, you could look at the little diagram here and see exactly what where those are going right? So this is just to help you put a battery like this.

Uh, as easy and as quickly as possible. This took me like 30 minutes to put together and then throw it up here, right? So these are these are really cool for that. So by the way, uh, these are gonna. All this stuff is available at the links on the bottom of this video As always I Want to thank you for watching this video and I will see you guys on the next one.

Why? Why thank you.