CR2 COMPATIBILITY NOTICE: Standard size CR2 3V non-rechargeable lithium batteries (15mm x 27mm); not interchangeable with larger CR123A cells and not compatible with Arlo cameras RANGEFINDER & CAMERA READY: Optimized for high-drain devices including laser golf rangefinders, instant print cameras, 35mm film cameras, light meters, and smart sensors 800mAh CAPACITY: Rated at 800 mAh capacity with high pulse current capability to deliver rapid laser distance readings and fast photoflash recycle times 10-YEAR SHELF LIFE: Low self-discharge lithium chemistry retains power for up to 10 years in storage, making it ideal for emergency backup and seasonal sports gear ALL-WEATHER OPERATING RANGE: Engineered to perform reliably in extreme outdoor weather conditions ranging from freezing -40°F cold to 140°F summer heat CONVENIENT 5-PACK VALUE: Bulk 5-piece pack ensures spare backup CR2 batteries are ready for home, field, or photography gear bags Tenergy Propel CR2 Lithium non-rechargeable lithium battery delivers long run times in every device that it powers whether it is an LED or incandescent flashlight, a camera, or a high tech gadget. Independent tests have shown Tenergy Propel CR2 batteries excel in higher drain devices and often outperform the big names; cells in those types of devices. CR2 batteries can power many flashlights Consistently rated as a consumers top pick for CR2.