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Hey guys, guess what i guess, all those modules sold out. Okay, so the ones that sold out were the ones that were just modules right. But here are the other two kind that we have. We have modules that come in a box, but they do not have uh well, they don't seem to have internals, they don't have uh terminals and probably they don't have terminals yeah and it seems like they don't have a plug in here.

So they don't have any electronics inside right um, so that's one, and then we have the modules that are coming inside a box and they have the terminals and they have the bms board. That then has the uh can messaging thing. You know part in here right. So today, what we're gon na look at is gon na, be these ones the ones that uh seem to not have have batteries inside, but they don't have electronics in there.

So we're gon na see what it takes to get inside and use them. Okay. So the first things we need to know is if the cells have voltage, so the quickest way to do that is well by checking, and we know by other modules that we've taken apart, that the terminals, the module terminals are right, underneath the uh the signals right Here the the signs, the plus and negative signs right. So what we're going to do is we're going to use a drill bit and we're going to drill right there and then drill right there, and then we can use our multimeter okay.

Now there are the holes. Now we can stick probes in there. Okay, so here we go, we test them, nothing we get like zero, almost like if those things are not plugged into the batteries. So i know what i said: it's not even worth taking this apart, but i do have a theory.

I think these ones here are the ones. Uh are the modules that are have not been spot welded. So the cells inside are stuck in the modules here, but they didn't bother to spot weld these. What it looks like is like these ones.

They were testing their equipment and how to assemble these modules right and before they can get the spot welder, maybe dialed in or whatever they want to start checking how to how to. I think this is a sonically welded uh case, so so they use this machine that vibrates and then it melts the two plastics together and so that needs to be dialed in, and so they thought well get me some modules and then put them inside the batteries Boxes and then they put them in there and checked it. If that's the case uh, if that's you know, my theory is correct. Once i take this apart, i'm just going to cut this.

Take it apart and then we'll see if the modules inside have the batteries that are not welded. Let's do it all right. So what i have to do here is, i have to cut this edge right here and, as you can see, i've already started, but i'm just going to use a uh a chisel. You know such a sharp uh wood chisel and then i just put it in a whack it with a hammer and then that's how i'm gon na cut that bam, alrighty and there it is.

I just brought up the thing. Oh look at that. It even has a broken thing here so yeah. These are test units and they are not spot welded.

Well, actually that one is but the rest of them aren't look the they all. Don't have that little thing. Let me just get a little yeah you see here. You can lift them up and that's why we get zero volts at the thing, because these basically are not connected to the cells.

So removing this should be pretty simple. You should just be able to take it off because it's not attached to cells and there's no. As far as i can tell, there is no connection between the top and the bottom, so it's not like fasteners or anything like that. So really, the only thing that holds these is just the pressure from the cells and then eventually with the spot.

Well so this will hold the plastic from coming out, but because these are not attached to the cells, this should come off. I don't want to take it off because then i have a bunch of loose cells and i don't want to have a bunch of loose cells uh. I let you guys do that and then you guys can process them and rearrange them. However, you want.

So that's what it is all of these modules here that are don't have any of this stuff, basically are not welded inside. Maybe some of them will be right uh. I can't guarantee that they're all like that, but you know this. These are what we're finding out right, we're taking a couple of these apart and then we're seeing that so there you go uh every every one of those cells that we tested that have been disconnected they.

They are somewhere around 3.5 volts, which is nominal. Usually that's what they ship from the factory, so these are brand new cells have zero cycles. They use them to test this equipment uh and - and they ended up being here right, so we're gon na put those as uh, not spot welded. There's, i'm gon na.

Add about another 60 of these modules in there now. I will put a note in there that you will have to take the box apart yourself, so you'll have to cut it just like i did here, it's probably easier. If you use like a little dremel uh, you could even use like if you have some kind of like uh, like a heated blade or something this plastic melts really easily. I've tried that, with my soldering iron, i put one of those little things and that's how i took that other part of the other one so um.

I guess we could take this apart for you, but we don't have to charge you more because well, i have to spend time i have to pay my guy to do it right, but i think most of you guys will take this deal and we'll just at The rate these are selling out um. You guys find a good value in these sales. These are premium sales. You probably paid five to five dollars for these uh anywhere else right in here, just because they're like that um you're selling, for, like i don't know like three dollars to sell or something or 2.99 to a 2.89 cents per cell you'll have to do a little Bit of work, but you saw me it really took me three minutes to take this apart.

I just a few whacks with the thing uh. If you have a little dremel, you can just cut it up. You just have to be careful and not cutting the thing. Even if you cut into the thing the cells are not connected, so it's almost impossible for you to short this right.

So there you go uh! I will put uh the stock of these ones that i have there and then we'll deal with the other ones. Uh it's early next week, all right! Let's have a good weekend, we'll see you guys on the next one bye so guys.

3 thoughts on “These modules were never spot welded”
  1. Avataaar/Circle Created with python_avatars James S says:

    That crinkling jehu, my dear God. I think my hearing frequency response just dropped a few dB on the sensitivity scale.
    Thanks for the video.

  2. Avataaar/Circle Created with python_avatars Hola! KZ - says:

    What kind of bms to combined two

  3. Avataaar/Circle Created with python_avatars syed sunny shah bukhari says:

    Love battery s

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