Energizer CR2 Lithium Batteries (2-Pack), 3V Photo Batteries EL1CR2BP2 - The Home Depot
4 x Duracell + 4 x Energizer CR2 3 Volt Lithium Battery Combo (8 Total)
Amazon.com: EBL CR2 Lithium Battery, 3 Volt 800mAh Photo Battery for Mini 25, Mini 50, Golf Rangefinder, Flashlight, Electronic Toys, Alarm Systems ( CR2-8 Count) : Health & Household
Amazon.com: Duracell CR2 3V Lithium Battery, 1 Count Pack, CR2 3 Volt High Power Lithium Battery, Long-Lasting for Video and Photo Cameras, Lighting Equipment, and More : Electronics