I have now been using the DiyBMS for a month and for the most part it has worked perfectly ony 7s80p bank, I only have 2 issues now
- when the controller reboots because it looses WiFi the relay activates and trips the shunt, I am hoping to resolve this by changing to D1 mini Pro and external antenna
- Lastest issue is I did some pack cell testing to get each packs capacity, when I was done I connected the back into a 24v pack and charge them up, one cell was slightly higher than the rest and once it got to full pack change this cell was 4.16v and the rest were 4.01, all should be 4.02, and my bypass is set to 4.04. the high cell pack is bypassing, but it’s been 2 days and we are not even halfway there. So this does bring up the discussion about dump capacity
I know we can add more modules, but this seems like a hack and work around, what would would be good if it were possible to add additional dump capacity to the modules, via an extension, not should exactly how this can be, maybe a dump board with its own power connection to the bank and the main module activates an tiny realy, MOSFET or something that can dump like 2A ?
I know Stuart might not be keen on this or most probably doesn’t have time maybe someone else can look into this ?