I’ve just setup my 12s bms on my eboard, and so far, it was working. I could turn the whole board on with the bms with an E-switch and have the board move on its own, but when I plugged it in to charge, it was not charging…
My Charger showed a green light, but the pack was not fully charged.
I’ve followed this diagram, just with two lipos instead of lion batteries.
Any help is greatly appreciated!
Also, I can provide photos of my setup if that helps.
EDIT: Accidentally wired negative wire that goes to the charge port to ground
I connected the charge port negative to C- on the BMS and tapped into the main positive wire for the positive wire of the charge port.
I’ve measured all the balance leads and each cell is around 3.73-3.75.
The board runs perfectly, just wont charge.
This issue has really stumped me…
Here are how the balance ports are wired. I am quite sure however, that the batteries or balance wires are not to blame because I can read each voltage of the cell and no cells have a large voltage difference. (.02V at most)
Any insight about my issue would be greatly appreciated!
I’ve just measured the charger plug and I’m reading the proper voltage (50.4V) and when measuring the charger port that’s connected to the bms, I get about 45V, which is the total voltage of my current pack.
I know this not reply to your post but, I need to know if someone can tell me if I have for example 2 3s lipo batteries of 5500 each and 11.1v so 22.2v in total. Will a 24v esc work with it and a lower Amp and voltage bms can charge it like a 24v 18 amps.
