POWEROWL CR123A 3V Lithium Battery 12 Count, High Capacity 123A 123 C123 Batteries, Long-Lasting Power

Customers find these batteries to be of great quality and appreciate them as a cheaper alternative to name-brand options. They work well in various devices, including smoke alarms and ADT alarm systems, and come in a convenient six-pack format. The battery life receives mixed feedback - while some say they last quite a while, others report they don't last more than two weeks. Power output is also mixed, with some customers reporting reliable power while others mention their devices showing low-battery warnings.