I have just finished assembling a new battery pack for my e-bike. This is a pack of 16 Headway 40152 LiFePO4 cells of 15Ah with a 16S BMS from BMAbattery. Discharge Current : 30-60A.
This issue: the pack doesn't behave like a LiFePO4 battery pack. Voltage drops progressively during the discharge cycle and goes down to 36-37V and the battery is never switched off. Therefore instead of getting always the same power as I should with a LiFePO4 battery, I loose power as the battery charge decreases. I also believe that leaving an LiFePO4 battery cell voltage going too low can damage it.
Has anybody heard about similar issue ?
Is there any chance the BMS is faulty ?
Any idea about how to fix this if this is fixable ?
Thanks for any help.
-Henri
This issue: the pack doesn't behave like a LiFePO4 battery pack. Voltage drops progressively during the discharge cycle and goes down to 36-37V and the battery is never switched off. Therefore instead of getting always the same power as I should with a LiFePO4 battery, I loose power as the battery charge decreases. I also believe that leaving an LiFePO4 battery cell voltage going too low can damage it.
Has anybody heard about similar issue ?
Is there any chance the BMS is faulty ?
Any idea about how to fix this if this is fixable ?
Thanks for any help.
-Henri