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SteveC7010 · 11-03-2011, 03:36 PM

Unlike automobile batteries, deep cycle marine/RV batteries don't do well sitting out in sub-zero weather. The best recommendation is to remove them from the RV (or boat), and store them in an above freezing temperature environment. Even an unheated basement in a heated house will stay well above 45F.

It is also a good idea not to set them directly on a concrete floor. I like to place a board under mine.

The CTEK family of smart chargers might be an excellent choice for maintaining a battery across the 4 to 6 months of storage. I am buying a 7002 which has 7 different charging modes which includes desulfation. http://smartercharger.com/

11-03-2011, 03:36 PM	#4
SteveC7010 Senior Member Join Date: Sep 2011 Location: Northville NY in the Adirondacks Posts: 2,128	Unlike automobile batteries, deep cycle marine/RV batteries don't do well sitting out in sub-zero weather. The best recommendation is to remove them from the RV (or boat), and store them in an above freezing temperature environment. Even an unheated basement in a heated house will stay well above 45F. It is also a good idea not to set them directly on a concrete floor. I like to place a board under mine. The CTEK family of smart chargers might be an excellent choice for maintaining a battery across the 4 to 6 months of storage. I am buying a 7002 which has 7 different charging modes which includes desulfation. http://smartercharger.com/ __________________ '11 Cougar 326MKS loaded with mods '12 Ford F250 SuperCab 6.7 PowerStroke Diesel Amateur Radio: KD2IAT (146.520) GMRS: WQPG808 (462.675 TPL 141.3)