Nine years ago I bought three of the 12V 9aH batteries, I keep one charging full up and take the other two with me on the ice. One lasts me about 6 or 7 hours if I have the power cranked up all the way, which I do. I try not to run the first battery too far gone before I change out the first battery. It takes two wire clips to change, both batteries are in my black plastic tool box. Soon as I get home I start the charging rotation all over again. I have never had a battery issue in that nine years. I have named them one, two, and three. And they are dear to me. I always keep all three fully charged during the off season and never set down on the floor..I think I paid $25 each from a local battery shop, same place I buy the stupid ATV battery that costs $75 and only lasts 2 or 3 years.
