How long can you leave a M3 LR stored unplugged? In the winter, maybe at -10C ? Have been told elsewhere that 8 weeks should be possible when starting at 90% charge, and turning off Sentry mode and other bits. Sound right? But there were few specifics. Like what's the daily loss of charge? Also can you use a solar battery maintainer on the 12V battery?
Nevermind, found lots of info here: https://teslamotorsclub.com/tmc/threads/master-thread-battery-drain-while-parked-or-car-in-storage.173804/