porsche_coyote
Well-Known Member
- First Name
- Wiley
- Joined
- Nov 23, 2019
- Threads
- 24
- Messages
- 366
- Reaction score
- 529
- Location
- Washington, DC USA
- Vehicles
- VW ID.4 AWD Pro S, BMW i3
Most cars will only precondition with a departure timer set, which makes sense given that it can take a fair amount of energy to hold the battery at the ideal temperature.Completely agree with you - it will take power from the mains to warm the battery up by anything other than a degree or so when the car's stopped. It's just trying to work-out how to instigate the battery preconditioning. It may be that it only works when the battery temperature is really low.
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