Ditto..:thumbup:No but it won't hurt them to give them a charge once and a while. Batteries don't die because their cold, but being cold lowers their float voltage. Once their float voltage goes to low the internal plates start sulfating. Sulfated plates cause dead batteries. Charging them once a month would be good for them.
thats perfect just ordered on of the doubles thanks for all the helpI like to use a battery tender Amazon.com: Deltran Battery Tender 12-Volt 1.25 Amp 2-Bank Battery Management System: Automotive I started using them on my motorcycles now I used them on my boat as well. Keeps it fully charged!!!
Ken