Is there a good method for preventing battery freezing? In an earlier thread, we talked about the slight bulge my batteries developed after what we are guessing was a freeze event. I have four battery boxes with eight golfcart batteries and three group 27 starter batteries in them. The boxes are wooden with closing tops. I will normally place a small 120V oil-filled space heater in the bilge to keep the engine area warm, but the batteries are in a different section of the space and, apparently, don't get enough heat. The boat live in North Carolina and isn't subject to continuous bitter cold, but we get a few snaps of teens or single digit temps.
Is there a heating device I can put inside the boxes (maybe even a 12V device) that can keep the boxes warm without compromising safety or should I construct a blanket cover for the boxes? Although, now that I think about the second one... it would not allow off-gassing... probably a bad idea)
Thanks in advance!
Is there a heating device I can put inside the boxes (maybe even a 12V device) that can keep the boxes warm without compromising safety or should I construct a blanket cover for the boxes? Although, now that I think about the second one... it would not allow off-gassing... probably a bad idea)
Thanks in advance!