Check the specs on storage temperature of your batteries. Most are OK down to zero F. or less. Assuming the batteries have heating pads, you could just turn them on if it gets colder than that.
As for "exercising" the Onan monthly, Well... I guess I shouldn't comment on that "rule".
__________________
Now: 2022 Fully-custom buildout (Ford Transit EcoBoost AWD)
Formerly: 2005 Airstream Interstate (Sprinter 2500 T1N)
2014 Great West Vans Legend SE (Sprinter 3500 NCV3 I4)
|