9V rechargeable battery, 1480mAh 9-volt lithium-ion block batteries, fast charging via USB-C, ideal for smoke detectors, fire detectors, multimeters (4 pieces)

High Capacity: 9V 1480mAh rechargeable battery for extended runtime. Package Contents: 4 x 9V rechargeable battery packs, 1 x 2-in-1 USB-C charging cable. This 9V rechargeable battery pack works with smoke detectors, fire detectors, multimeters, remote controls, alarm clocks, infrared thermometers, laser thermometers, temperature guns, distance transmitters, wall detectors, mini photo printers, vital signs monitors, and other devices that use 9V batteries. The 9-volt battery pack features an LED display that indicates the charging status. The battery pack supports USB charging and comes with a data cable. This 9-volt battery pack has built-in multi-layer circuit protection (overcharge, short-circuit, overheat, and overvoltage protection) and a robust design.