This holiday vacation I uncovered several things I did not know:
- my 12 volt battery was dead upon 8 day absence. Best thought on culprit was OBDC II wifi adapter I did not disconnect. Though not a problem day to day, it was enough after more than a week.
- a electric car where 12 volt battery dies not work is problematic, e.g., rear hatch not accessible
- I did a jump on 12 volt and started car. Unlike an ICE, just driving around the Leaf for an hour does not charge up the 12 volt battery. You have to take the 8 hours to charge it with a real charger. I did so and have not had a subsequent issue.
- in my Volvo, when battery died, all set ups vanished creating issues for things like radio. For some reason, the Leaf retained all set ups from XM settings, Internet/phone connections, garage door opener to dashboard time.
***. Is there another battery in the system that keeps the set ups in place as in a lap top? If it is there, it was a lifesaver.
Now I make a habit of disconnecting the wifi adapter. I have an extension cable so the dashboard port does not take abuse from connect/disconnect, another reason to always have an extension cable.