Thanks for the confirmation.The LEAF 12v battery will not self discharge as long as the LEAF is *not* plugged in. Its a known defect of the LEAF BMS that it won't top off the 12v battery if the car is left plugged in. Simply unplug the LEAF and it will maintain the 12v battery just fine. The LEAF has almost non existent vampire drain, so it can be left unplugged for extended periods of time.
I think though that it is more correct to say the problem exists if the car is plugged in and not charging
Last edited: