Hi. While I know this isn’t a bike forum, I’m using the same system I use on my longboard.
I’m running a 13S5P setup, using N.E.S.E. modules. The batteries used are 65 Sanyo NCR18650GA’s. I’m using this BMS.
Charger reads that the battery is fully charged. Multimeter reads 50v from both the battery and the XT90 output of the BMS. However, when plugged into my BBS02, the battery is read as near empty and only runs the motor in very short, very small spurts.
Is there anything obviously wrong in my setup? I’ve struggled with this for about a year, so buying a prebuilt battery isn’t out of the question at this point.
EDIT: When plugged into a watt meter, it floats around 30v. When powered, it stays there until the bike shuts off and refuses to turn on again, where the watt meter displays 7v. I suspect a BMS issue, and will try to post a diagram.