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Can u link someone special you have in mind?

I have looked on that type of bms But i dont know if that bms can handle 10.000W of pull force. Its not 10.000W all the time but anyways the fuse cannot burn out when it pulls that high.

I did connect a elictrical fan to the battery today. Before i started the test the cells where: Cell1: 3,39 Cell2: 3,57 Cell3: 3,35 Cell4: 3,39 After 10min when connected to the fan the cells where: Cell1: 3,35 Cell2: 3,38 Cell3: 3,32 Cell4 3,35 And when i connected the fan cell 2 dropt from...

Active balancer

I Will get a bms of its necessary But that bms must handle the start current apms and that bms needs to work and not overheat when i use my apmlifyers and draws 100 of amps for some time.

My battery does not have balance leads (I think). That might be a good idea. Then if One cell is to high or low that thing Will alarm me.

Yeah i have thougt about that to. But i belive that the cell that is higer then the others will also discharge faster then the other cells. and i did order 1 voltmeter/cell so i will see if one cell goes higher then the others. I will run the bms but i tought that it could be good to se all the...

Yeah, im going to run the battery with the bms but the alternator will stop charging when the battery goes up to 13.8V and will have the voltmeter right next to the steringwheel so i will se if the battery goes under. And i did order 4 more voltmeters so that i can easy check if some cell is...

I do have a volt meter for the voltage of the battery but maybe i should invest i 4 more so i can have 1 on every cell. But as we talked about before. My cells in serie as they att now ther volt is 13,85V and the Cell that is the higest V is at 3,58V. So if i dont charge over 13.8 i should be...

So i think i need to check on the cells myself anyways. Or do i need to buy a bms that i connect the cells thru?

I dont know what bms i have, its the One that came with the cells. But i dont think it does much for the cells. Im connecting the positive and negative directly to the battery so i dont know how this bms can cut of the battery. I belive its just a shit bms that is balancing the cells a little...

Yeah im hoping to do that. I think it said on the website i bought them from Max 3000A discharge. But its a smal 4cyl engine so it is not that big. And i got big big copper cabels to supply and discharge the battery.

Okey, i Will Try them in the car and message you back when i have some results?

Okey, so maybe not worth replacing the high Voltage cell then?

Yeah i hope so too, i would have liked if i could have charged them as max as possible becouse more Volt is more power on amplifyers, i wonder if i call the company that i bought the cells from if i can replace that cell that is so high. then with some luck i can charge 14,3-14,4 at least but i...

Ooopps now cell 3 i corect, i did se now that i needed to move it up.

Now the cells that are 3,42 are in 1 and 4 position. Also the BMS is corret now? ?

But then cell 3 has no bms cabels at all, or maybe thats is how its supposed to be? Or should i put the green wire to the positive on cell 3?

Okey then i need to try to discharge them and then charge them again. I can limit the alternator to 13,9 V insted of 14.3 so that i dont risk the high cell go over 3,7. Here is a picture of the BMS where I bougt the cells:

Picture on the BMS and the cells.

Hi everyone. My name is Joel and im actually from sweden. My post might not be ok becouse my lifepo4 cells are not for solarpanel. They are actually for a car sound system. So the problem: I did get some lifepo4 cells last summer (2021). its 4 cells and they are 300ah cells. When i got them the...