angusinalberta
1 mW
My battery is a generic 48V 10.5Ah on an ebike with 5800 km on it.
Recently the BMS has started shutting the motor off whenever V drops to about 45 V. I can't tell exactly because my wattmeter resets itself when the supply drops to zero.
I can replicate its behaviour using a resistive load indoors. The following graph shows what happens.
I'm not sure why the voltage should be leveling off while discharging. Is that normal? Shouldn't the voltage be dropping off much faster?
What's wrong? BMS?
Angus
ps the preview shows a duplicate graph below that I can't delete. Sorry for the clutter
Recently the BMS has started shutting the motor off whenever V drops to about 45 V. I can't tell exactly because my wattmeter resets itself when the supply drops to zero.
I can replicate its behaviour using a resistive load indoors. The following graph shows what happens.
I'm not sure why the voltage should be leveling off while discharging. Is that normal? Shouldn't the voltage be dropping off much faster?
What's wrong? BMS?
Angus
ps the preview shows a duplicate graph below that I can't delete. Sorry for the clutter