Your not in ME, its much colder here. I play with battery's all the time and had a braille- racing 17pd-they don't work in cold weather. CCA power is req 500 ever start max, optium is 450cca-not really enough. braille is much less cca. But for there size Braille are powerful. Best bet is for me wally 3yr war. Napa would be ok but more dough. I keep looking at this battery stuff, but so far wally is the best for the money for sure.