The battery capacity depends on the label on the outside of the battery, and the charging current depends on the input current marked on the charger.
1. When the charging current is less than or equal to 5% of the battery capacity:
Charging time (hours) = battery capacity (mAH) ×1.6÷ charging current (mA)
2. When the charging current is greater than 5% of the battery capacity and less than or equal to 10%:
Charging time (hours) = battery capacity (mAH) × 1.5÷ charging current (mA)
3. When the charging current is greater than 10% of the battery capacity and less than or equal to 15%:
Charging time (hours) = battery capacity (mAH) × 1.3÷ charging current (mA)
4. When the charging current is greater than 15% of the battery capacity and less than or equal to 20%:
Charging time (hours) = battery capacity (mAH) × 1.2÷ charging current (mA)
5. When the charging current is greater than 20% of the battery capacity:
Charging time (hours) = battery capacity (mAH) × 1.1÷ charging current (mA)
