This magnetic lithium battery charger features a power bank function, allowing you to charge your batteries and other devices on the go. Made of high-quality engineering plastic, it is compact, lightweight, and efficient. The charger has a magnetic absorption and charging function, overcharge protection, and constant current and constant voltage charging mode. It also has a 0V activation function, reverse connection protection, and short circuit protection. The charger is compatible with various lithium-ion batteries, including 18650, 21700, and 26650. It has a charging current of 1000mA and a discharge current of 1000mA. The charger also has a power indicator, with a red light indicating charging, a green light indicating full charge, and a red flashing light indicating battery reverse connection or charger fault. The package includes a user manual and the UC10 battery charger (without battery).