Panasonic Rechargeable Batteries AA battery (rechargeable) 617116 - Panasonic 139218, Panasonic manufactures the HR-3U rechargeable AA battery with a capacity of 2700 mAh and a voltage of 1.2 V. This NiMH battery is designed for devices requiring high energy, such as digital cameras or remote controls. The pack contains four batteries, making it ideal for frequent power users. Panasonic 139218 HR-3U AA Rechargeable Battery 2700 mAh NiMH 4 pcs