- Plug the External Battery Charger AC power supply cord into an electrical outlet.
- Plug the External Battery Charger AC power supply into the battery charger.
- Slide your OxyGo Battery Charger onto the OxyGo Battery by clicking and locking into the charger.
- When the battery is in the correct position, a solid red light will indicate that the battery is charging.
- When the green light illuminates, the battery is fully charged.