Originally Posted by PowerSource
Plug in or the batteries will go out of balance. After you charge 100% there is a resistive battery balancing program that runs which makes sure all modules are within spec. You will for sure have battery issues if you do not plug it in.
How long does the balancing take?
I drive and charge my car very regularly and had no issues with the battery yet. But now my contactors are changed I try to use them less by unplugging the car when it has reached a full charged, because I have heard them clicking some time during the day when plugged in and being full charged for some time at that time. I am on 525, because 535 makes more use of the contactors right?