Smart & Safe ChargingGranicell smart charger passed US safety certification with chip control, automatically stops charging when full and features an LED indicator Independent Charging SlotsFreely charge any number of AA or AAA Ni-MH/Ni-Cd batteries simultaneously for easier charging High Performance & Long LifespanBatteries can be recharged up to 1300 times with 2800mAh high capacity, eco-friendly and free of harmful substances Versatile CompatibilityWorks well with a variety of electronics under 1.5V, including high-power devices like digital cameras, electric toothbrushes, and flashlights USB High-Speed ChargingType-C input allows convenient charging from an adapter, car, power bank, or computer, anywhere and anytime