LiFePO4 Akku aufgesägt! 1,2kWh | WANROY 12V / 100Ah

I looked there. I'm almost excited today. I have a quickie for you. I hope one day there will be one. The WANROY or WANROY company sent me a 12 volt, 100 amp hour battery, that is, 1.2 kilowatt hours that is already intended for iron phosphate. I actually know my preferred chemistry is lithium batteries because they basically can't go up, the battery can be charged up to 14.6, the manufacturer says I'll turn it on, see if the surge cutoff works. We might be a little excited last time when some people complained about this, it comes from the power supply, it's only 16 amps and we just saw that when it reaches 14.6 volts it shuts off here, so the power cutoff surge works, it also fits because the cells Chemistry says 3.65 volts per cell and there are four, so yes, you can calculate it, this 14.6 volts, next I will discharge the thing, see if you can get close, I can handle 20 amps, with 0.2 C discharged for 5 hours, that will be 20 amps and now let's see what capacity comes out of that.

I always do it so that I connect each device to the battery first. via resistors that are now up here because depending on the input rate each one can moderately hit 13.8, let's see what happens 140 watts 10 amps so I would have to go further to see but the 20 amps I would have to grab because it is at 380 watts at 20 amps 12.9 volts there are 357 watts that you can put a little bit in here. Be careful with this type because otherwise it will ring again and now we will see if it can really deliver 100 amp hours. See you again in probably five hours.

You are not interested in such a brief interruption. I have to interrupt at 14, 20 and 27.88 amps per hour. You are not yet irritated because the screen will be down. , 50 hours more than 75 amps. That should be fine in terms of sum. I will add this sum again, but it should come to 100 amp hours. Now let's get to the fun teardown. Dude, everyone looked there. Sometimes there isn't as much inside as you think. It's because the tractor was never opened when you thought, so the cells are here, I will say they are in a protective casing. She thought of something if the guy had done it.

I've been more careful opening it, but what could really go wrong with the batteries and metal parts? How much packaging comes out of it? So it is attached, it is all the klatrad touch that holds, but what is that? six, eight, that's a parallel, oh, so you have to have fun hitting it. The material is brutally stable, so even when folded, it becomes very tight to separate. Always use the right tool to solve. the right problem like or and now of course some of you are wondering why the recipes were ground before so with the flex, set it to the correct value.

Yeah, the idiot thought it would be totally awesome, but he could open up and then do it. and then you see the inside and the idiot overestimated its power or something, so wait a moment please, I already mentioned that you have to be very careful and it's not fun with these currents that release things, it can cause welding and If you cut it since I did it a little carelessly, then you could also cut the BMS and then you will have completely unprotected outputs, which is not necessarily fun, so first of all accessories for protection, here I made the net for the temperature sensor so that you can Look straight ahead, you're asking around there, that's how now it's kind of good and now we get to the question of all questions: what kind of cells are they?

They glued the pressure relief valves shut. I'm kind of excited about this. and here it is seen. They pasted something on the QR code. There is a QR code below. When you get there, of course I can't do anything with it, so here's a pressure relief valve, open, there's stickers on it. So that's what happened, that's not intentional, but I don't understand it a little complicated. Now let's first see what you want to find there, so that's what's stuck on top and now let's see what's underneath, so that's a little strange. AFC 300 AFC 310, whatever this number means here or AC 2, I pull out yours, of course it can be the serial number and here's one stuck on top, here's another AFC 310 like that and now you read the code on sometime, let's take a look and now I can guess what will come out when I decorate the things, yes, I was really stumped because they are good.

Tell yourself how much profile fits in 52 amp hours per cell, so there are 105 amp hours here in the package and you can see that they are connected in parallel here and they are from March 2022 and either the first or the 26th. It's not directly from one batch but it's not something completely different either, so you can't say it's a bad batch and I miss it. It's just that even the one stuck on top is actually the same thing. There is something else stuck on top that we can now try as an example, since at least there is some aluminum foil here.

Well, we wanted to know. Not only did they put a sticker on it, but that's what I call the protective sticker now just like that with a window. I just scratched it to make it look like the original cells are fine, what did they do there? It's welded on itself, a good idea, yeah, so it's a little sharp. But I have to say there was something glued on top, so okay, these are all the balancers and test points that are glued here and here is the compression, the cells. that are not parallel are isolated from each other here because I recently asked about it, you should pay attention, that's right, I forgot that they are parallel, that doesn't matter, but the outer wall here obviously has potential and therefore will expand a little.

That's why I spoke quite badly last time because I spoke in milliliums instead of 0.0 million, but I hope you can fix that. The cells are only one-third charged. I already did it last time. do it now always like that, that is not standard, so that is not the resistance that is on your data sheet, but last time or say they were still correct when measuring, so now let's see that clearly there will be much better shoes on the market , that is, 0.4 million. The cell here is 0.45 million 0.45 0.43 and you saw the voltage that was now 3.29 volts each, also 3.29 volts and 3.29 volts, so it actually worked pretty well.

Now let's take a look at the temperature sensor it really could be a PTC overshooting low temperature, let's try again my 50 amp fear fuse or against fear, it's surprising there isn't any short circuit at the 16 amp power, that's right As it is set, it is time for cold dew, so now you should turn off the charging current because it is below two degrees or less. I have to check it out, I'll take a look when I continue here bubble. Oh, did you see that? It turned off, managed to turn off the low temperature. I am delighted that they say that the load should, that is written incorrectly, should be exactly between 5 and 45 degrees.

It can also be -20° and now we were well below 0 and it would be damaged if it was cold and that's the. question of how to get the voltage back to 13 volts, okay, okay, so the power supply has disabled battery mode, yes, but now of course there is still excess temperature for a flashlight to burn out or something and zero, you've seen it. 0 that has detected excessive and low temperature. I'm almost excited, no, I'm excited. I had to know that if you put a compressed air spray on your head, it's a cold spray, without electricity, it goes down.

Now I could do it for hours. It works perfectly. I think it's the first one I have on the table that does all that. God, that's the temperature sensor. Now I'm not sure if I ripped it off, which is something else you should know: you can. We do not connect them in a row at will, that's what they say here, it also reaches a maximum of 48 volts, because because and in extreme operating conditions, of course, if one of them turns it off, for example, get BMS a little more voltage from on Saturday, so in principle they have to be able to reach the maximum voltage, so they could go up to 48 volts and for everyone who wants to know what will start now, you can go through it here, but we forgot something, have six AWG here or alternatively one 2 3 4 immediately 5 times or five times siliconed 12 AWG.

I will show you the current values, it is stuck here it also remains and since there is an insulating layer on anyway I have no problems with it being the BMS once again isolated against the battery 8 I have no objections to this, here is the heatsink of heat so the heat goes up here, yes for a short time that's for stabilization, but everything is fine, compact after my cutting action here, so I would just call it waterproof to describe everything, it's closed, but everyone has this design, it was very difficult to notice, so in short I have nothing to complain about.

I'm just wondering about these cells, about the circuit of the cells, about the slightly stuck pressure relief valves, so now it's in the borderline area why something like this was partially covered with the stickers. I don't know what they look like. I still have the Handke Balance here, the cells are new but don't look used, so although I only had suspicions briefly, I think that happened during the exchange, but otherwise Handel Maja was happy, but otherwise I have no objection to it temperature is detected. BMS reacts correctly. Undervoltage is detected. Overvoltage, so a voltage disconnection is detected in the home.

To call off the move, maybe we could have remembered the temperature sensor, okay, but that's all I can think of right now, it's weird that I actually can't. Find something now, okay, so let's get on with it, don't worry until the next video.