For a number of reasons I often do not charge overnight when I park my Model S 90D in my garage. Tesla recommends to have the car "always plugged in when not in use". But does it mean *plugged in AND charging*? Is it ok to cancel charging after plugging in overnight? I know if you plug in and cancel charging, there is still the vampire drain, as I loose 1-2% of battery charge overnight.
So, what's happening when the car is plugged in, but charging is cancelled? Is the onboard electronics maintained by the battery or the external power?
So, what's happening when the car is plugged in, but charging is cancelled? Is the onboard electronics maintained by the battery or the external power?