So, I need a battery charger. Never bought one before, any suggestions, brands, models, features, places to buy from? During the winter months I usually just put some gas stabilizer in the Swing, and every Saturday go out and start her up and let it run about 15minutes. The battery has always stayed charged okay but with the really cold snap we had last week I was unable to get either bike to start last weekend. So last night when I came home from work I tried to start them up again since it was like 50 yesterday. Got my wifes running but still couldn't get the Swing to start, almost got it but by the time it was wanting to turn over I had completely killed the battery