Thanks rj. Very helpful
1. While it's true there's no start load as with an ICE, this also allowed VW to use a small battery so concerns still exist
2. There's nothing in the manual as to how long the car can be sitting idle before the 12V battery drains below a safe thresh hold. 3 weeks, 2 months?
3. Nor is there any easy way to test the capacity or state of charge to know whether to use a trickle charger.
4. Does the 12V battery get charged when you charge the main battery? If so, and the main battery is at 50% for storage puroses, I could charge it to 80% in order to top up the 12V battery
5. It appears the 12V socket requires the ignition to be on, but in any event the manual says not to put a charger, solar or any power input into the socket
6. Looking in the engine compartment, there don't seem to be any openings in the grill to run a trickle charger through, so the hood would have to be up
7. If the 12V battery is charged by the car main battery, couldn't I just turn on the electric motor for a couple of hours?
8. I called my dealer service and they said the 12V system is just like an ICE and is independent of the main battery system, and I could charge it with either a trickle charger or battery charger without loosening any battery connections
2015 e-Golf Limestone Gray metallic
1988 BMW 528e, 1992 BMW 525i
Prev: BMW 2002, 3.0cs, 2800cs, XKE V-12, Beatle
Clipper Creek 40A