I agree with John and Ken, I bought a new 12v battery for my box and I trickle charge it every winter. So far it gives me enough power to crank over my O.S.91FX- Ringed for the past 2 years. I think my battery is over 5 years old now?

Tower sells them and so does Horizon. But you can save a few bucks and buy a lawnmower 12v battery instead. I've seen It work.


Pete