I built this dock for a drive mobility scooter battery. The dock uses the battery charger supplied with the mobility scooter to charge the battery.
A panel meter in the dock is used to show the voltage and current when charging.
The mobility scooter model that this project was generated for, is the Drive AutoFold Elite.
More details of this project can be found at https://github.com/pjaos/drive_mobility_scooter_battery_dock