I like the idea, I have 2 bar fridges, two water coolers and 3 coolers that use peltier coolers they work very good, but I am not sure how efective they will be if you drawing in air. not sure if thats what you are intending or not by the drawings. if they are in an insulated case and you just recirulate the air that might work, but I am not sure if it will be the most efficent way to go about it. 70 watts X 2 is a lot of power to keep a battery warm, and as for cooling are you going to be charging it fast enough to make that type of heat or using it in over 60 degree temps?
Steve
