Energizer 329 1.55v 1 Battery sold per qty of 1. BrandEnergizerVoltage1.55 VoltsReusabilitySingle UseBattery Cell TypeSilver Oxide About this item They are high performance – equivalent to our mercury-containing battery range They have a long shelf-life – so they’re always ready when you need them They have been extensively tested – so you’ll never be disappointed