Amazon.com: Allmax 9V Maximum Power Alkaline Batteries (12 Count) – Ultra Long-Lasting, 7-Year Shelf Life, Leakproof Design – Perfect for Smoke Detectors & Wireless Microphones (9 Volt) : Health & Household
Amazon.com: Duracell 28A 6V Alkaline Battery, 1 Count Pack, 28A 6 Volt Alkaline Battery, Long-Lasting for Cameras, Medical Devices, Garage Door Openers, and More : Electronics