Battery pack, battery loading device, power supplying device and electronic equipment

摘要

A battery pack is provided which positively prohibits incorrect loading on a battery loading device inappropriate for the battery pack. To this end, the battery pack includes a battery cell, a casing 19 housing the battery cell, and first to third output terminals 21-23 for outputting the power of the battery cell. The casing 19 has a front surface 20, on which the output terminals 21-23 are arranged, and a bottom surface 24 extending substantially at right angles to the front surface 20. A discriminating recess 30 having a discriminating groove 32 is formed at a mid portion of the bottom surface 24.