I have a 12V deep cycle battery that I want to put in the garage hooked up to a trickle charger for the winter. Problem is that the garage isn't heated and it gets pretty cold here. Any suggestions?
Lead acid batteries use sulphuric acid for the acid. A 50% solution of sulphuric acid freezes at approximately -30 degrees Fahrenheit. Also, the trickle charger would slightly raise the temperature of the acid when it was operating. I'm not sure what concentration is in your battery, but I've never had a car battery freeze.
It's a size 24M that i hook up to a trickle charger.