About This Enegitech CR123A Lithium Battery Type: Non-rechargeable Lithium Battery, Voltage: 3V, Capacity: 1600 mAh ***These batteries are disposal batteries, please do NOT charge them Replace for: CR123, CR123A, CR17345, DL123A, EL123AP, K123LA, SF123A, VL123 Wide Compatibility: Enegitech 123A battery is compatible with Flood Freeze Sensor, Smart Lock, Smoke Alarm, Smoke Detector, Water Leak Detector and other home alarm system device. High Performance: Delivering up to 10 years of standby power, these batteries ensure your protection systems are always ready to perform when needed. PTC Protection: Built-in PTC protection (pressure, temperature, current) to ensure battery with high safety performance than other brand batteries. Overview Number of Batteries : 4 CR123A batteries required. (included) Brand : Enegitech Battery Cell Composition : Lithium Manganese Dioxide Battery Capacity : 1600 Milliamp Hours Recommended Uses For Product : Floor Freeze Sensor, Smart Lock, Smoke Alarm, Smoke Detector, Water Leak Detector