Having had a lot of trouble with a couple of not working bms's I have had to run the 12ah 48v 16 cell Headway cell without one.
Now the cells were all balanced before I rant the pack for a run yesterday.....I then charge the pack up as normal. Now 3 of the cells I. The end of the pack were registering around 3.8v whilst the rest were either 3.2 or 3.3.
Took the bike for a short 1ah ride and measured the cells again. All were at 3.2 volts. Is this normal for some cells to register high volts then settle down on use?
Also if I leave the charger on without a bms will the pack eventually balance out?
Many thanks in advance