Quote:
Originally Posted by Oneilkeys
Supposedly, a fully charged car battery will not freeze until about -75 F. However a fully discharged batter can freeze at below +32F. That is why it is important to make sure both batteries remain charged over the winter, or move to Florida - like me - where it never freezes. Both your batteries need to be disconnected and tested and/or recharged periodically. In addition, while your house battery is probably a deep discharge battery and can be discharged below 11.8 v multiple times before it is ruined, the starting battery is not. Deep discharge that starting battery 10-12 times and you probably will be purchasing a new one.
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Thank you I should disconnect both batteries and take them back to my home And if they need charging what kind of charger p.s. next year we will be going to Florida Merry Christmas
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