The 10.5V, 110mAh A177 Alkaline Battery from Exell Battery is an Alkaline alternative to the Mercuric Oxide 7MR9 and H-7D batteries, and has a higher output voltage than those cells. It also serves as a replacement for the Duracell PC177A, Eveready EN177A, ANSI / NEDA-1606A, and IEC-7LR44, and fits several Sony Long Shotgun-type Condenser Microphones. Additionally, the battery powers various other devices, including some vintage camera equipment and medical testing equipment. It is a little slimmer and a little shorter in length than a standard AA battery. The A177 is assembled in the USA.