Energizer Alkaline Max 522-9V BP1 • Energizer Max Alkaline, Power Seal Technology Help protect all your devices. as well as providing consistent, strong energy and continuously lasts 8 times longer than conventional batteries • Suitable for high-powered electronic devices such as digital cameras, photo flashes, CD/MP3 players, press games, portable radios and high-powered flashlights. • Free from mercury and cadmium get industry standard • Power 1.5 Volts, size 9V, 1 piece/pack