Small Engine Troubleshooting Problems? Ask a Mechanic Now.
2001 model, gas or electric?
Do you have a voltmeter to test the battery voltage? Does charger run a full 8 hr charge cycle?
How old are the batteries? When it quits and starts again, does it quit again after a short while, or does it keep going!
Fully charged battery pack should be lose to 42 volts! Check each battery with digital meter and look for one that is more or less voltage than the others.
One bad battery will affect all the batteries.
Batteries are excessivly low!
Plug in charger and see if voltage increases.
If meter is correct ,batteries are not charged!