About this item Safe and Reliable: The charger with smart chip has passed safety certification. With 6 protection functions. USB High-Speed Charging: Type-C input for convenient charging anywhere, anytime via adapter, car, portable charger, or computer. 8 Independent Charging Slots: Free to charge any number of AA/AAA NiMH/NiCd rechargeable batteries at the same time. Trickle Charge Mode: Extends battery life by 2 to 3 years and increases battery capacity. Dimensions: 1.97 x 0.55 x 0.55 inches.