When I plug it in to charge it does nothing. No lights the gauge doesn't move . Any ideals ? She have had problems like this for years off and on . They send out a repair man and it will work for a short time and then the same old problem .

Could be the charger or the charger port. Do you have the offboard charger that plugs into the joystick or an onboard charger? I would suggest trying to find an offboard charger from a friend or your provider that you can borrow and plug it into the charger port under the front of the joystick to see if it will charge the batteries. the meter will not work if you use an offboard charger the lights on the charger will turn green when it is fully charged. when the charger is plugged into the joystick and you turn on the chair the lights should scroll indicating you have the charger inhibit function working and hopefully the chair is charging. If you can charge the chair with the offboard charger then look into buying one and using it instead of trying to get the onboard charger working Hope this helps