Please follow the instructions outlined in your scooter manual.
The process is similar across models - always plug the wall-plug into the AC outlet first, then connect the charging port to your scooter. While all scooters sold at Apollo come with advanced battery management features (such as overcharging protection), we recommend unplugging the charger once your scooter is fully charged.
Do not leave your scooter with less than 40% for extended periods of time and try to charge it frequently, keeping the battery charge level near or at full. If you notice your charger is overheating or smoking, unplug it immediately.