After mowing 3 hrs, my wife shut off our JD 455 then it would not start and battery was very low. boosted batt and got running agin.
checked alternator when running--output 12.99 volts. after about 15 minutes mowing---engine stops dead. try to start--no go. checked batt voltage 9.75 then rapidly increasing up to normal range.
boosted batt again to start---running and mowing then shut down again---same results.
Questions : battery seems ok---alternator seems ok possible bad cell in battery ???
any suggestions would be greatly appreciated. I would like to try and fix myself if possible.
Thank you, all for any input or suggestions. Take Care.