It's Labor day here in USA so CS is closed. Here's the details. Sunday morning, car at home charged over night to 90% (trickle charge). Drive fairly far and return with about 36% (10am ish). Plug car in so I can drive far later in day. At about 1pm I check and car is in low 40% area, I think 44%. This is not enough to get me where I'm going and back so I get out of car (still plugged in) close door and take my other car. When I check the car that night (been plugged in all day, have scheduled to not charge from 4pm to 9pm), the car is COMPLETELY dead. Luckily I left it unlocked. Nothing happens when I enter the car. No indication light on at charger. I check the app and it says something along the lines of 'charging error, unplug and replug charger'. I can't unplug because there is no power at all so the plug is locked in there. I'm guessing that the 12 v is dead, but wanted to see if anyone has experienced anything along these lines before I try to jump start.