POWEROWL CR2 3V Lithium Battery, 6 Pack High Capacity CR15h270 CR 2 C2 3 Volt Batteries Cell, Long Lasting Power

Customers find these batteries to be a reliable choice that works well with various devices, including door alarms and laser range finders. They appreciate the perfect size and good fit, with one customer specifically noting they work well in window sensors. The battery life receives mixed feedback - while some say they last longer than usual, others report them being half-dead upon installation.