Midway if you hava power when the charger is plugged in and you aren't getting anything when unplugged I would say you have a battery problem. If you have or can get ahold of a digital voltmeter set it to 200 volts dc and plug the leads into the two outter plug holes in the charger port located under the front of the joystick. Without the charger plugged in you will read the battery voltage. It should be 24-27+ volts fully charged. Now plug in the on-board charger and you should read 27-34 volts indicating the charger is working. Hope this helps
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Midway if you hava power when the charger is plugged in and you aren't getting anything when unplugged I would say you have a battery problem. If you have or can get ahold of a digital voltmeter set it to 200 volts dc and plug the leads into the two outter plug holes in the charger port located under the front of the joystick. Without the charger plugged in you will read the battery voltage. It should be 24-27+ volts fully charged. Now plug in the on-board charger and you should read 27-34 volts indicating the charger is working. Hope this helps