The Xiaomi ZMI AA/AAA Battery Charger PB401 is a versatile and efficient solution for keeping your batteries charged and ready for use. This compact and lightweight charger is designed to charge both AA and AAA Ni-MH batteries, making it ideal for a wide range of household devices like remote controls, cameras, toys, and flashlights. It features four independent charging slots, allowing you to charge one to four batteries simultaneously with intelligent current control to prevent overcharging, overheating, and short circuits.