Independent charging slot: Compatible with 1-4 AA/AAA rechargeable batteries, independent charging slot, can charge batteries of different sizes freely.

Charging speed: The battery is fully charged no more than 3 hours, charging speed is fast, saving time.

Safety: Automatically stop charging when incorrect input voltage is detected, battery failure or short circuit or non-rechargeable.

Constant current charging mode: Protects the battery from current fluctuations and keeps the charger safe for use.