mgfiest wrote:
I have a cheap solar on my vechile battery which stays in and is in working order when spring comes. I have no load on the rv battery and its junkville in the spring. I know the better solar is putting out more voltage and it has its own shutoff installed in it. So I may have to assume that the new rv battery was******to start with... But any who... Theologically I should be able to leave a deep cycle battery on the solar over the winter months?
Theologically? Better ask your pastor or priest or rabbi. :W
An appropriate solar setup should be entirely capable of keeping the battery up over the winter. If it isn't, it seems it's not an appropriate setup for that use.
As I understand things, a good battery generally should survive the winter simply by being charged up fully and then completely disconnected. Self-discharge is quite temperature dependent, and pretty low when the environment is cold. A fully charged battery won't freeze unless you're someplace like Alaska. (Discharged, the electrolyte will freeze at a comparatively warm temperature.) Checking a couple of times and charging a bit if needed wouldn't hurt things.
If there are any small loads on the battery, it of course won't stay charged over the winter.
