I've got a following issue with my ebike: KT-LCD3 shows zero battery charge while voltage is 54.5 (according to it) and motor does not spin (both with throttle and assist). Controller is KT48ZWSRD-BSK11L, bettery Sinlion 48V 15.6Ah fully charged, motor is Bafang BF RMG06 48V500W(10). All the wiring seems to be intact. What can it be? Run out of ideas(
Sure. It was first thing I've tried.
Also I want to mention that:
1) This bike was working fine for ~300Km
2) Last ride I've drained battery so that motor was not responding to both throttle and assist. But voltage was ok for display (and probably controller) to work. I've rode few miles on pedals. Then after ~10h I've plugged it in to charge.
Controller could have a problem sensing the voltage and/or sending the data to the LCD.
I have a Fusin controller / LCD (made by LiShui) set, where one controller works normally, and the other (using hte same LCD) doesn't send voltage or speed data to the LCD. The LCD does control the PAS modes/etc of the controller, either way, so I suspect something with the controller's transmit-data line, but never got to testing that (since the other controller works normally).
Thanks. Our controllers have one in common: instead of two resistors (according to drawings), they have one. Guess this can be an issue, since two small resistors can have better cooling that one big. So I'm thinking about replacing it with two small. Unfortunatelly I don't see any other way not to make it happen again (unsoldering because of overheating).