AGB battery charging

[Hollefin]

I have 2020 California with AGM batteries. Is it okey keep the AC plugged in while the Cali is in garage several months (winter)?

 

[yossarian]

I have 2020 California with AGM batteries. Is it okey keep the AC plugged in while the Cali is in garage several months (winter)?

Yes, the charger drops down to float voltage which is suitable for long term AGM charging.

If you are concerned about overcharging just purchase a cheap mains timer switch.