bob2.0 hat geschrieben: ↑Mi 25. Sep 2024, 10:36
Miguello80 hat geschrieben: ↑So 29. Jan 2023, 13:53
Hmm, good point, thank you, I have to measure it but I expect that this socket is alive and water can cause short-circuit. In my bike is this socket connected directly to controller (or more precisely on bolts where is battery's + and - connected) so I will think about adding a breaker that disconnects this socket from controller and will be switched on only before charging.
Did you ever do this?
Perhaps the better option is to install a diode? Current can only go in, not come out?
No, I focused on more important things. Mostly I do not forget to close the charging socket. Sometimes I do and so far no problem even on wet roads, this part is well protected by fender.
Current does not have to go any direction
Pins on charging socket are live (I mean + pin), they are the ends of wires connected directly to controller under those same screws that holds wires from battery so connecting those two pins is almost the same as short circuit on battery but in this case it can damage the controller too.
bob2.0 hat geschrieben: ↑Mi 25. Sep 2024, 10:36
So the question is when the BMS activates cell balancing?
Do we know with certainty when the BMS starts cell balancing?
I guess the current when the chargers stops charging depends on the charger you have?
I am affraid that nobody knows this exactly. My guess is simple: BMS stops charging according the value in its setting (usually is my battery fully charged 84.2 V, recently I got 84.3 V), charger "feels" no draw so stops charging. Of course every charger has its own settings of charging V and A etc. that can be changed by turning the small potentiometers inside but here BMS is the king, you can not charge battery when BMS closes it.
Question is whether BMS really does have a balancing function or is battery balancing only as a natural transfer between packs ??? Our BMS is not smart so I would rather expect the second option.