If there was a green light when the power was plugged in. If you plugged in, the green light is on but not turn into red, it is possible that the device is not successfully connected.
24V 2A XLR Battery Charger 3 PIN | Mobility Scooter Wheelchair Power Supply UK`
24V 2A/5A Fast Battery Charger UK Plug GoGo Elite Traveller XLR Male head
In Car Smart Battery Charger 24v - 2a For Charging Mobility Scooters on the go.
24V 2A Mobility Scooter Wheelchair Battery Charger Connect and Forget
24V 2A Mobility Scooter Battery Charger Lead Acid & Gel