1. Place the battery charger in a smooth safe place, don’t cover it to ensure the normal heat dissipation when charging.
2. If unplug the battery which was in charging, the battery charger will turn to the next set of batteries to charging.
3. When the battery power is above 90%, it may not be charged automatically.
4. When the battery is used, and its temperature is high in a short time, the battery will not charge automatically. The fourth light will flash to alarm. Please open the battery switch, and then turn off the battery, when the alarm disappeared, and recharge the battery when the temperature become normal.