doubledipsoon
100 W
- Joined
- Feb 22, 2013
- Messages
- 151
My new 24 volt 20 AH LiMnO2 battery powers my 600 watt BMC motorized e-bike great, drawing 20 amps of current for 33 minutes before it cuts out at 25 volts, all data obtained by "shunt" tests in real time, on the bike, while at full throttle on flat terrain and no peddling. I sent the battery back to the makers, and they said it was due to the battery BMS shutting off the battery due to "overheating". They're not sure why....yet. When hooked up to my other e-bike with a 400 watt BMC motor, actually 370 watts, it does not cut out at 25 volts, presumably not overheating. The battery is in a plastic "Currie e-ride" case, with no vents, made for SLA's. Would "venting" the plastic case help, or does it sound like bad cells? Any theories about this problem?