DIY Li Battery Heater...A REAL TEST!
DIY Battery Heaters...A REAL TEST!...got down to 7F degrees last night. At 7am the battery compartment is at 35 degrees. Controller is set to turn on at 35F and off at 38F........The batteries are at ...
Forum Discussion
Rbertalotto wrote:How large is this 2a pad? I do know a single 25w (12v) 80x100mm silicone heating pad (which draws 2a) can get as hot as 160-170f. That's hot enough to burn your finger. Could be too hot for a plastic battery case. That's the primary reason why we used 4 of these same 25w heating pads wired in a parallel/series configuration. It distributes the same amount of heat as one 25w pad over a much larger area. With the 4, 25w pads wired parallel/series, each pad only heats to 110-120f (vs. 160-170f), and only draw 2a of total current (vs. 8a all wired in parallel).
Agree on the pad size. I bought a smaller, 2amp pad to try in the truck with the one battery to see how it works. Stay tuned!
