Specifications: Dimensions: 1.99" Height x 0.57" Diameter Additional Information: Also Available in 4 Pack AM3PTB4A Compatibility: Walkmans Digital Cameras Portable Audios Electronic Games PDA Stamina Platinum AA Size General Purpose Battery are designed for very high drain devices. Sony's High Density and Precision Technology allows consumers to experience Super extra power in their High drain devices such as Walkmans, Digital Cameras, Portable Audios, Electronic Games, PDA's and more. Stamina Platinum Batteries have the Optimum balance and Maximum Volume to sustain continuous usage. Battery Voltage: 1.5V Parts: 1 year limited Labor: 1 year limited