I have parked my MX for about 4 months now unplugged (there is no plug at my parking spot). By now the battery should be drained and I will be back in about 1 or 2 months. Does anyone here have any experience on what needs to be done ? (most likely get it towed) Also what kind of damage would there be on the battery if any.
Because of COVID, I was not driving my car. I was parked in a garage and I noticed that I was loosing about 3% of battery every month.
Basically the DC/DC inboard charger was charging the 12 V battery every two days for about two hours.
Do you know what state of charge was your battry when you left?
Can you have someone at your residence who could charge time to time your car using a
portable charger such as illustrated in this video:
Note: Unless you are in a freezing cold weather, I imagine that the propulsion battery will still have some electrons,
because this battery get isolated using a relay activated by the 12 V battery.
But the 12 V battery would certainly be drained because the DC/DC inverter would not be able to keep it charged.
So I would use first use a
12 V Jump Start charger to get enough 12 V power to get the car alive, such be able to
unlock and open the doors and to be able to have the screen displaying some information or alert messages.
About checking the status of the 12 V battery, I would recommend using a
battery monitor App using a bluetooth device.
This would help you to determine if the 12 V battery keep its charge or need to be replaced.
I would also use the
OBD2 App Scan My Tesla, which requires an
OBD2 transmitter, and may be a
special harness
if you don't have an ODBC plug. This would help you to determine if any Cell of the propusion battery get damaged.
I would not trust a Tesla Service Center providing you with such information.
I imagine that there must be some specialised Tesla garages in HK that could help you looking at your car, while you are away,
and may be doing some checks and may be recharging the 12 V battery and even the propulsion battery, as described above.