on my e-scooter I have connected a cell-checker on every battery which give me real-time voltage reading. At times during acceleration, but also deceleration, they give very low reading, kind of unrealistic such as 2.6V, but only for one sample and then go back to normal.
I suspect this to happen when the cell-checker is sampling at exact the same time that the motor controller is doing a duty cycle.
So I bought a supercapacitor 100VDC 22mF with the intent of connecting it in parallel on the main leads of the battery to smooth these short deep in Voltage and make it smoother.
Do you think it is a good idea?
There is one immediate drawback with this capacitor: I measured that when fully loaded at 60Vdc it still draws 1mA which will considerably worsen the self discharge of the scooter
Is it worth it?