> I always plug in the charger if the car's going to be parked for more than a couple weeks.
To this day, since ~1980, I disconnect the +ve battery lead if the cars not going to be used for a few days or parked up in the bush waiting for when we get back from a walk.
Stops parasitic drains and Heisenbug discharges when thermal expansion during a very hot day causes a hard to track short.
My 2019 vehicle's manual explicitly says not to do this, and that if the battery fully discharges you should make a follow-up service appointment to frobnicate the computers. I miss older cars.
To this day, since ~1980, I disconnect the +ve battery lead if the cars not going to be used for a few days or parked up in the bush waiting for when we get back from a walk.
Stops parasitic drains and Heisenbug discharges when thermal expansion during a very hot day causes a hard to track short.