Camelion Super Heavy Duty 1.5v D #R20P-BP2B is reliable, durable, and made with a zinc-carbon battery that easily powers your gadgets. These batteries are built for high-drain gadgets offering dependable performance to keep your devices operating without a hitch. They have a sturdy design that allows them to resist heavy use and serve as a dependable power source. The 1.5v D battery size is ideal for flashlights, games, radios, and other power-hungry gadgets. It makes sure you have the power you need when you need it. These batteries are eco-friendly because they don't contain mercury or cadmium.