I'm about to enter a new phase of my Tesla ownership with my June 2016 AP1 MS90D. After it being my daily driver and 50k miles, I'm taking an ex-pat assignment and it will be unused for likely 2-3 months at a time. I know there are several other threads on this, but looking for more for reassurance than advice.
My plan is to leave the car plugged in set to charge to 50%. I know once the SOC drops down to something like 47% it periodically top itself up.
Normally I charge at home using my UMC connected to NEMA 14-50/50 amp circuit. Are some reasons it would be more convenient if I park the car in the side bay of our garage and my UMC won't reach my dedicated 14-50 outlet. Any concerns or bad experience if I plug it into normal 120V outlet, potentially via an appropriate heavy gauge extension cord? Is an alternate outlet I could use without an extension cord, but have an irrigation system control plan running off of it and don't want to share circuits.
I talked to my service center first of the month and they didn't have any specific advice on storage approach.
Comments from those that store car ~3 months at a time without anyone waking it up??