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 sensors, and appreciate their good value. They fit perfectly and are compatible with different devices, with one customer noting they're ideal for security system magnetic door switches. The battery life receives mixed feedback - while some say they last very long, others report they don't last as expected.