[Toutouxc]

The battery thing doesn't sound normal. My car keeps the 12V plugs powered all the time, even parked and locked. Last winter, not driving very often, I noticed one day that the whole car was covered in snow except for a small round spot on the windshield. Turned out I'd left a camera plugged in, recording, for three days straight, generating enough heat to warm the windshield. The car did show a "voltage getting low" warning, but started just fine, I went on a little drive to let it charge and it's been fine since. My car is a humble 2018 Škoda (VW tech basically) still on the original battery, and it does the intelligent charging routine where it only charges when engine-braking and lets the voltage drop often, so it's one abused battery.

[steve_adams_86]

Wow, that’s interesting. Even with a brand new battery mine will have issues with rapid draining. I know the alternator is working, so it isn’t that. Maybe others are right that there’s a phantom drain somewhere. A camera recording would kill my battery in under an hour, I’m almost certain. The radio will do it in around 30m.