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1) Where can learn more about batteries?
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A. Batteries work better at this time, caps are rare and expensive devices that are very good at doing things not needed for storage systems typically.
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All right, we got another load of batteries. Look at that. Let's check out what we have here, all right, so they come wrapped in these sheets. Look at this battery.

This is a cool battery, all right all right! Let's talk about these batteries here! These are very, very interesting and very, very cool. These are uh. They come in those boxes right, but we got some of them that are outside the box and they're just the battery modules, and these are the ones that we're going to offer first, because it's going to take some time for us to get through this and to Figure out what how what we need to do to make them uh, well useful right, because right now, they're, they're, sealed and they're tough to get apart and stuff. So let's look at these first um.

This right here is a module. It's got one two, three, four: five: six, seven, eight cells in parallel and then one two, three four five, six seven and then it repeats again, here's seven! So it's a 14 s right 14 s, 8, p module and they have the uh inr 2170 samsung. Is it 50s or c something like that? It's the 5 amp power, 21 70 cells that it's capable of like three and a half or 3.75. I think uh c output, so this essentially could put out something like 250 amps continuous right.

So this is uh. I don't know these bus bars can do. I guess we'll run some tests uh to see if they can do it, but they do have these sort of fuses in the thing there and so they're, i don't know we'll see how hot they get i'll run a test i'll i'll see how much we can Get but this is a 14s uh like what is 14 has 56 volts right or some 48 volts domino or 52 volts nominal. Something like that.

These are great for storage, this right here, it's 40 amp hours about 2 kilowatt hours and it's really light, and it's really really really compact. So this is like state-of-the-art um battery i mean this is some of the newest technologies and by the way, these uh, the manufacture, dates, are less than eight months or something like that six between six to eight months now, why are they here? Well, there are a bunch of different reasons: we're seeing a lot of the bms's that maybe failed. Uh we've taken the first one that we took apart. They forgot to put the screws in here, there's a bms that goes uh here and they seal the box and without putting those screws um.

I think a lot of these were they were running, maybe like first production, and maybe they were checking their little robots. I think they were using robots to seal these because there's a lot of them that actually don't have the i don't know. I don't know this was a mistake. While they were building them, but they they forgot to feed the machine with the bms um pcb and as a result of that then the robots, maybe they just they sealed they put the modules in there and sealed it without putting the the electronics and stuff.

So we have a bunch of those that we'll have to figure out what we're gon na do with them. Maybe put our own third party bms thing right there, so there are a bunch of reasons, but these are fairly new. They they shouldn't be degraded, of course, i'll test. A few of these uh.

You know, i don't know i'll test 20 of these from different parts, just random on the stack. I won't be able to test all of them. This is a ton of energy. You think about it: uh there's over 250 of these modules, and so each one is two kilowatt hours, and so that would take me a long time uh and it would take a lot of man hours to be able to do it right.

So we're gon na price, these very very aggressively just so they can move them. So you can so so you can take that work right uh and this is going to be a diy project. Please, if you find out uh who makes these do not contact them. Do not because this is the reason why they ended up here.

It's that they wouldn't have to deal with these anymore, but their loss is our gain because we are able to then get very affordably uh diy battery module like this right. I will uh work out. The pin out here and i will make maybe a pcb board that is going to make it really easy for you to use these right um, and so i will do my best to make it easier and then but yeah i mean these are amazing. Look at how well they stack, and these are 48 volts.

You can just parallel a bunch of these and you're ready to go. You can build a power wall without a lot of work using some very premium premium. Battery cells, that are, you know, pretty new and fire very probably very uh, with either zero cycle life or cycles on them or very low cycles on them right, um. So again, we're gon na sell these in in three different phases: the the ones that aren't just the modules like this, you ready to use we'll sell those first and then the boxes that we're probably gon na figure out a way to uh modify them so that We we are able to use them uh and then yeah all right time to test the uh capacity of these uh two kilowatt modules.

So you can see here. I've made a little dongle, so i can put those in there. I'm checking out to see uh how well the cell uh groups are, are balanced right and so there we go, and then this is just gon na be the one that's measuring uh, we put 41 amp hours in there. These are supposed to be 40 amp hours and then, if that gets down to zero, then uh we'll know that they have full capacity.

This is just the camera that i'm going to leave. There do a shooting, a time lapse and, of course our load is going to be the trusty ikaflow delta max and the delta mini. I have both these units connected in parallel to their uh solar ports and i'm just gon na dump the battery energy from that. Those two kilowatt hours - i'm just dumping them in there at about a rate of 700 watts uh.

That's what these ask at that voltage right, they're about uh. What's the voltage 56 volts right for a 14 s pack, so we shall see how good those are. So all right, as i'm processing these uh modules here, i'm finding out that a lot of them have not been spot welded, so they they were assemblers modules and then right before you put in the machine to spot weld these uh. Well, they didn't right, and so we have uh yeah we're gon na have a half a pallet or something if so, these ones that are you, know, brand new cells.

Essentially they were never even connected to a pack. They were built into a pack, but they were never spot welded. So if you need to reconfigure a thing, if you want to buy some of these cells to harvest, these are probably going to be the best, but also you just you know, spot weld them and make it into into modules. So we're going to offer these, but we're going to disclose that they are not spot welded and so that you can then have your choice to do as you see fit with these cells that are premium uh, samsung, 217, 70s or 700s right uh, five amp powers, All right here we go, i'm charging this battery back up and look at this.

It already hit 41 amp hours. I mean i want to say it five minutes ago, uh at 58 point you know like at 58 volts, so this likely has more than 40 amp hours, it's more, like probably 45 amp hours by the time that we're done right. We still got a few more. You know uh the top voltage on these is gon na, be 42 volts and we're almost there uh.

The balance is a bit off on these, but not nothing to worry about so yeah. These cells are pretty new they're on use uh. Their most likely is from all the testing uh that they were doing on the first uh production run of these right, because now we've found some that are not even uh they're, not spot, welded, right and so those cells they were put and assembled into a pack. But they were not uh used right.

So that's what these are coming from. So this is a good deal, because these cells are on use right. They were just used to be able to test equipment while they were putting the assembly equipment together, and so there we go. We get to use them at a very, very discounted price.

So there you go. You can find these at Currently, we will have the ones with the full case. At a later point, we still have to figure out a bunch of things if we can sell them with the case uh what we have to do to make them usable to you guys uh, so stay tuned for those.

If you're interested in that there's there's more of the of those than the actual just modules by themselves, so keep an eye out for those in the next few days. Okay, bye! So you.

2 thoughts on “2kwh of 21700 samsung cells in 14s 52v battery module”
  1. Avataaar/Circle Created with python_avatars Derek1978 says:

    What's the max amp/c you can pull from that? Going series ups the amperage doesn't it?

  2. Avataaar/Circle Created with python_avatars Vester Dillon says:

    Hey ,how's it going

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