NINMAX® CR123A 3V Lithium Battery 6 Pack, No.1 1700mAh 3 Volt High Power 123A Lithium Batteries for High-Intensity Flashlights, Home Security Devices, and More

Customers find these batteries to be of good quality and appreciate their performance, with one mentioning they work well for home security systems. Customers consider them a good value, with one noting they're a money-saving alternative to Energizer Lithium cells, and they are perfect for smoke detectors. Battery life and fit receive mixed reviews - while some say they last quite a while and fit perfectly, others report they died within six months and wouldn't fit their devices.