Great for flashlights, radio receivers, transmitters, and more devices that require extended running time this 2-piece Philips D Batteries Set features long-life Zinc Chloride batteries. Each battery holds 1.5V of power and is traditionally shaped with a positive and negative end. Two come packaged in a hanging blister pack, perfect to ensure that you're stocked up on charges and you don't run out of power for a long while!