My battery use to work and charge properly for about 50 charges over the last year. I have done about 1200kms on this battery so it has done well. Then at some stage I realized I only got half the power out of the battery and then progressively down to about 25% within a couple of charges. I did not understand as the charger would automatically switch off when full charge is reached. I proceeded to check battery at full charge and it only showed 47.9V and it should be 54.8V.
That said, I checked each cell and found that some was 4.2V some 3.8V some 3.6 and so on. All over the place. I believed the BMS blew so I bought a new one. I installed but the charger does not want to charge the battery now at all. It guess it still see one of the cells at 4.2V so does not want to engage. How to now charge this battery if it does not even want to start? I checked the charger is still providing 54.8V of potential.
Thanks
That said, I checked each cell and found that some was 4.2V some 3.8V some 3.6 and so on. All over the place. I believed the BMS blew so I bought a new one. I installed but the charger does not want to charge the battery now at all. It guess it still see one of the cells at 4.2V so does not want to engage. How to now charge this battery if it does not even want to start? I checked the charger is still providing 54.8V of potential.
Thanks