These Energizer A544/4LR44 alkaline batteries are ideal for powering up your devices whether at home or in the office. Suitable for a wide range of electronics including photographic devices, dog cellars, invisible pet fences, and portable medical instruments such as glucose meters, these batteries ensure smooth, flawless performance every time.These Energizer A544/4LR44 batteries feature a capacity of 178 mAh, depending on the load and temperature, and produce a nominal output voltage of 6 V. Delivered in a handy pack of two, each battery measures 11.6 x 5.4 mm (H x W). A world-wide leader in batteries.