I recently purchased a 48V 20AH lifepo4 battery pack from V-Power of Hong Kong. I was riding home from work yesterday, and the power cut out. I was only a block from home, so i pedaled home and charged the battery. Once the battery was charged, the power never came back on.
The BMS output wires measure 48.2V, though nominal voltage is about 57.0V
The charger port on the BMS still reads full nominal (57.0V) voltage.
The charging function still works on the BMS.
I still get full nominal voltage (57.0V) directly from the battery pack.
So i can run the bike by hooking up the battery pack directly, and using the BMS only for charging. However, i'm afraid i might damage the battery this way if i ask it for more amps than it wants to give. The max rated discharging amperage is 40A, and my motor/controller pull about 36A max, so on paper it looks like it will work, but i still want to ask.
Will i damage the battery by bypassing the BMS?
What can i do to diagnose the BMS low output issue?
Or, should i just try to find a replacement for the BMS?