It never been easier to build a DIY battery system. We live in the greatest time in history. Take a look at this for I Mean just look at him. Is that guy normal I Don't think he's all there.

He is low IQ An example of the lowest kind in our society. and if he can do it, and if he can do it, if he can do it, What does that say about you? So just get up and do it. Are you really going to wait until a complete collapse of the electrical grid to worry about this? Are you really going to wait? What does that say about you? Just wait until all the lights go off and your precious Tik Tok goes dark. you oblivious fool.

Don't be that guy. Well, are you sees the moment. Build It Build It Build It Build the power wall. All right video time.

Let's talk about this 48 volt battery that we're working on. Okay, this is a custom box that we're building for the L60 cells that you can find on Jack 35 right? This one is a dual full purpose box. You will be able to use it like that fling flat like that as a Uh rack mount unit but you could also will be able to stack it up and hang it on the wall. And so what we're doing here is we're making custom stuff like this printed circuit board that serves as a Uh bus bar right? and then the BMS that is going to go in here and then you can control it via the things over here.

So anyways, let's talk about how to connect the BMS into that right? Um, so here's the BMS that we decided. it's a Jabba one that is the number right there. uh I will share the Uh link to this. it's about 100 bucks it has Full Features This The reason why we chose this one is because it matches kind of.

The whole industry is kind of standardizing right? this becoming standard and so I'm not going to go into too much detail. Onto the specs of this: BMS You can look it up, uh, click on the link and then go. When you guys buy it, you can do the thing right. So anyways, but to connect it, we have this connector right here and this is the benefit of using this printer circuit board is that it kind of simplifies the whole connection.

There's 18 wires here for first-time users. this could be daunting and even for experienced Builders You know, just handling 18. That's the worst part. My least favorite part about batteries? It's the BMS leads the balance leads.

It usually becomes a rats nest and it's just confusing. You know, trying to troubleshoot it trying to find out. So anyway, this simplifies this whole thing right? and so all of those connections end up right here in this tiny connector that it's really easy to use. So what you have to do is you have to cut cables that come in cuz they come really long.

People usually don't have a nice little connector. they can connect it so they just have to run it all the way to the cell. Terminals and stuff right so you'll have to cut about 200 mm. Here's picture what I did and make sure you don't cut the black cables because those are temperature sensors.

Here's how you connect: there's four connectors. One is the number one through four. The number one starts with the white cable and it goes into B minus here and you get to the yellow and then the red and then the brown and then the blue and they go sequential in sequence. Then you go to connector number two here the same thing.

You start with the white one, yellow, red, and then brown. But here is where it gets a little confusing. This BMS has the 18 wires. so there's 18 cables in here, but the the 16 cell battery pack only requires 17 balance leads and so there's an extra wire in there right? I Don't know the reason for that I Think maybe is this This will support 17 cells instead of 16 cells, but we're only using 16 because that's the the norm that's a standard and so what you will have to do is you'll have to combine one of the these two cables into going to the same port.

Now the only way that I was able to find out is to ask the actual uh, the seller of this BMS and then they sent me a little diagram that I will share with you and it's very confusing because they don't make it very clear. you'd have to literally just kind of go through all the connections and be like oh, there it is. Uh, and so it's right between Uh connector number two and connector number three, Right? So the brown cable of connector 2 with the white cable from connector 3 those have to go together into Uh C9 on the board there and then they go sequential from there on the you know you follow with the yellow, the red, the brown, and then the blue and then the last connectors. start again with the white yellow and then red and then Brown and then you'll have the same amount now.

in the future. I might change the design to match those. So I'll put four little connectors in here. you know, label one, two, three, and four and then you'll just be able to oh, this is a connector number one and then maybe I'll even write the the you know the the Wi colors in there right now I might do that.

Uh, the problem is that all of these you know I I don't control the batch of these. so I think maybe in the future they might change the colors or they might change the thing. Or or there's several versions of of Uh Bms's that can be used. So then people might get confused and think like this might not work with their BMS which is not true.

This will work with any BMS right? as long as you can you know connect the cables in the right places. But I'm just trying to make it easier and stuff and that's why I'm making this video for this particular BMS which will be linked and maybe we'll even carry this BMS uh and sell it with the kid. It's going to be that easy to connect right? uh and any might even be easier in the future if I change the design here. uh I might make some of these custom to different kinds of Bmss if there's enough requests from people.

I Know that there's several versions and several manufacturers that make this BMS uh or a or a very typical BMS that is similar to that, right? So for right now, this is how you connect this BMS to this uh bus bar. Uh, does it have yeah 1.6 version 1.6 of this. If I do make changes, then it'll be a different version. We'll make another video and stuff.

so let's connect that uh into the battery that we have up in the wall. Okay, so here are the batteries that are on the wall. This is the original version, the production version of this uh Board Of course we need the one that has those changes right so that we could do This right so those are green and so I just put these up here because they're red and just I wanted to take a picture cuz this is how they're eventually going to look like they're going to be red but they're going to have all the changes. so let's put the uh, the green ones up here and then uh then we can install the BMS right down here w down.

All right, let's see uh how we can paint this thing. There's not going to be a proper way to paint obviously because there's a proper way to do things, but I just want to see what is achievable by just a regular Joe like me with just buying a spray can and then just do it. Super windy out here is probably not the best d Okay here's one tiny little thing that I still have to fix and I I think I just did it on this last latest Uh version that I order is that you see how it fits, flush right here but it then it splits up like that and the reason that is because I made the base the same width as the the front, right the top and so obviously there's the thickness of the material so that's why it steps out like that in the back on both sides. Now you could put the screws in there cuz I made these holes.

you know, with a little bit of room but still, you know it's not perfect. So I think what I ended up doing is because I couldn't make this the base smaller I just made the next top that the cover a little bit wider and then uh, this thing is also a little bit wider. So I just made the battery a tiny bit wider the thickness of that material. So now it's going to look even.

Here's a moment of truth: let's see if this will turn on. Uh okay, there's lights down here I thought the screen would come on but I guess you have to press it. So let's look at uh menu. pack voltage is 50 volts right now uh current capacity temp cell info Okay so V1 to V4 oh oh, they're a bit.

look at. this one's a three three volts and this one's a 3.2 so it's not balanced. Uh, let's see there we go 32 three th. so there's a lot of Threes And there's a couple of 32s.

there's a 29 uh, 3,00 3 volts 32, 3.2 a 28 and then a 3 3.2 The rest. Yeah, this battery needs to be balanced obviously so but you know these cells again. Where did I grab these cells from several places I think these ones will be more even cuz those are coming off the boxes. These are cells that I think I had on my bench and I was doing stuff with them.

so that's what happen. So what do you guys think about this? I mean that's one way to make him appear. Look at that white on that white wall I Don't know if I like it. maybe the next one I'll paint it black and then see what it looks like and then we'll we'll decide.

but definitely yeah, those are the two main colors I had white just sitting there. Uh I don't have black so that's why I just painted that one today and it was. It was the rusty one. that one those was going to work.

These are obviously as, uh, this is not a tutorial, right? A step-by-step tutorial. Obviously because I'm still figuring this out. So I'm putting them up here I'm just figuring things out. What's going to be easy? What's going to be hard? What? How I'm going to make a video explaining how to make it right like I'm I don't want to say the wrong things and obviously, uh, putting the cells out here.

It's a bit sketchy, but it's doable and there's some advantages. You can do it by yourself. you don't need a second person, but then putting the BMS over here oh my. God that was such a pain and uh I don't think I want to repeat that on these.

Maybe I think I'm going to bring a cart. we'll get this down. I'll get some help, you know? then we'll put a cleat. this one's hanging on a cleat and then um and then just plop it up there.

I think that's the way to go. the way easier. So the cleats cost a few extra dollars, right? I don't know. like8 $10 or something? I think it's well worth the the money to be able to do that because uh, well.

this one. for example. if I want to remove it from the wall, you kind of have to take it apart. you have to take the cover off, then take the screws off from the back of this thing and then the thing thing comes off.

right. These ones too. Now this one. all you would have to do is take a couple of screws that hopefully are going to be on the bottom.

I Think I'm going to put like a little bracket here that you'll be able to put a screw from the outside and then it won't go up and then that's it. You'll remove it. uh and so definitely installing them. It's a lot easier.

Uh, other than the fact that you will need a second person cuz these are like about 80 lbs. Um, but yeah, this is. uh, this is just the first one. Um I'm going to do.

Man, this is kind of weird, right? Shouldn't this thing turn on the screen? Okay, so if you turn it off, yeah, the screen stays on. This is weird. This is separate than the actual BMS Onoff button. This can stay.

This can turn on while the BMS is off and the BMS can come on without the screen being on. So huh? It's very interesting. Uh yeah, stay tuned. I'm going to do this because I have to do this.

This is our warehouse here and stuff. but definitely I'm learning how to do these the best way. and then once I figure it out. I'll make a tutorial with the parts already figured out, all the holes in the right place.

the dimensions. you know correctly. Right now there's a little bit you know I think this is like first Gen or first revision. You know, second revision and then third revision and even I have another one that's coming that I made some changes to it and uh, and so definitely this one wasn't the easiest I think they're going to get easier as I'm putting them down there, right? But there we go.

Just a little quick update on how this project is going.