Thor Motor Coach 2011 Avanti Owner's Manual page 71

the proper electrolyte level and that they are fully charged. A discharged battery will
freeze and may crack the case, causing severe damage to the battery and surrounding
area. In storage, a battery will lose charge gradually over a 30 to 45 day period, even
when disconnected by the use of the Battery Disconnect Switch. We recommend that the
batteries be checked for charge at least monthly. You may wish to remove the batteries
from the motorhome and store them in a heated area. However, even when warm, the
battery charge level must still be maintained. A warm battery accepts charge much more
readily than a cold one.
Keep the battery vent caps in place during storage and prohibit
smoking, welding, and other work involving the use of flames in the
area.
Fuel – Store with the tank full to prevent condensation buildup.
Dash Air Conditioner – Run for a short period of time to assure the compressor seal is
lubricated.
Interior – Check the interior of the motorhome monthly while in storage to make sure leaks
have not developed, or condensation has not formed that can cause damage to interior
components. Condensation can most readily be observed as moisture accumulation
on windows and mirrors. To reduce condensation, make sure to air out the motorhome
occasionally during storage.
Chapter 11 - Winter Use and Storage
71