Four days ago I found my 2013 SL Leaf totally unresponsive. No lights (though the dome light came on once), nothing, and of course it wouldn't start. The dealer tested the 12v battery and found that it was not particularly low, but I replaced it anyway and the car worked fine for two days. Yesterday I didn't drive it at all, and it sat in the garage on the 220 charger. This morning the car is dead again. No dome lights, no dashboard readouts, doors don't lock or unlock. I've change the key fob batteries (last week), so it doesn't appear to be a key problem. There is nothing plugged in inside the car, the lights weren't left on. I'm stumped.