Enegitech CR2 Batteries, 3V CR 2 Lithium Battery for Nest Temperature Sensor, Golf Rangefinder, Smart Switch Button Pusher, Instax Square SQ1/SQ6/SQ40 Non-Rechargeable (CR2 2 Pack)

Customers find these batteries work well in various devices including golf rangefinders and Nest temperature sensors, and appreciate their perfect fit and compatibility with security systems. The battery life receives mixed feedback - while some say they are long-lasting, others report they don't last more than a week.