Recent content by WillAK

I have 16x 280ah REPT cells wired 8S2P with 2x 200a JK BMS, one on each 8S but they are constantly throwing up wrong data. For instance, I'm getting Battery Fully Charged message and it's showing 100% when the voltage is showing 27.4v. I also know its not fully charged because this morning the...

It was about 3.40 when I noticed it bulging. If I can somehow bring the voltage right down that's what I need. How to drain a 3.2v cell without hooking it upto 3 other cells?

Fantastic, just what I needed to hear. There's a bomb in my garden! :rolleyes:

How low temperature? At the moment it's outside in the garden. About 25C day and 15C at night.

I purchased 4 cells from china, and after charging one has seriously swollen up. It's voltage is 3.33v. How can I dispose of it? Or how could I bring down the voltage of one single cell to drain the battery? I'm worried it's going to explode!

Yes I do mean batteries. I don't have a problem putting them in parallel I'm just wondering how I would wire up the two BMS. Which would then be the main negative if I have two of them? I guess Ill just shunt them both together the pos and the neg's.

Well that's me convinced. Thanks very much!

I have 2x JK 200a BMS which ive been using for a while. I will just connect the 2 cells in parallel and continue. Does anyone have a wiring diagram for 16S in 8S2P with 2x BMS?

Yes of course you're right. But what about if I put 2 cells in parallel and just use one BMS?

I have 2x 8S 24v 280ah LifePO4 battery packs which I want to combine to create 1x 24v pack. I have 2 separate BMS which are 24v 8S. What's the best way to connect these together? I don't have a 16S BMS so should I run two separate BMS 8S and connect in parallel? Also, would I need to top...

Can anyone tell me what size the 300a red wire would be?? Black wire is 25mm2 and the red is roughly double.

No not Alaska. AK is the first two letters of my surname. I live in southern Spain.

Yeah after I clicked submit I realised they are simply two wires crimped together into one. It's just difficult to find the wire size and the crimpers where I am. They arent on Amazon here.

I bought a battery box 'kit' from Alibaba which came with a 200a BMS, and these 25mm2 thick wires and an even thicker positive wire. (Photos attached). I've also bought a new JK BMS but it wont come with these wires. So my first question is, where can I buy these thick wires, with two...

Yeah so my 200a BMS and 100a charge controller is more than enough. Even this time of year it's giving me 1200w, 6 hours a day.