BATTERY

A battery capable of leading a user to grip a grip part such that the posture of the battery becomes a prescribed posture when the user lifts up the battery. The battery has an approximately rectangular parallelepiped outer shape, and is provided with a third surface, a fourth surface, a fifth surface, and a sixth surface that are approximately orthogonal to a first surface and a second surface respectively at both ends in a longitudinal direction. A handle has a first portion provided near the third surface side to extend from the fifth surface side to the sixth surface side, and a second portion provided to extend from the third surface side toe the fourth surface side.