Twice over the last three days my 2011 Leaf SL has suddenly stopped charging (and the air conditioner stopped, and the dashboard showed "--- miles") after about three hours of me sitting in the car charging (120VAC) and running the air conditioner. Both times, the problem was fixed by me briefly disconnecting the 12V battery's negative power cable.
Would a failing 12V battery explain this? Am I draining the 12V battery somehow? I started the car by pressing the power button once while pressing the brake pedal. As soon as the problem happened, I disconnected the J-1772 plug and turned the car off and on a couple times-- the 12V battery clearly had enough power to restart the car, but the dashboard still showed "--- miles" until after I disconnected the 12V battery's negative power cable.
Would a failing 12V battery explain this? Am I draining the 12V battery somehow? I started the car by pressing the power button once while pressing the brake pedal. As soon as the problem happened, I disconnected the J-1772 plug and turned the car off and on a couple times-- the 12V battery clearly had enough power to restart the car, but the dashboard still showed "--- miles" until after I disconnected the 12V battery's negative power cable.