SURPOWER CR1/3N 3V Lithium Battery 10-Pack for Laser & Pet Devices

Customers find these batteries to be well-made and reliable, working well in various devices including CTC lasers and pet stop dog collars, and consider them good value for money. They receive positive feedback for their compatibility, with one customer noting they work perfectly with Crimson Trace products. The battery life and power performance receive mixed reviews - while some say they last a long time and deliver powerful performance, others report they don't last more than a day or two and have low power output.