A vehicle comprising: at least one upper frame (14a, 14b); at least one lower frame (16a, 16b); a front frame connecting a front portion of the upper frame (14a, 14b) with the lower frame (16a, 16b); a rear frame connecting a rear portion of the upper frame (14a, 14b) with a rear portion of the lower frame (16a, 16b); a pair of rear wheels (24a, 24b); a drive unit configured to drive the pair of rear wheels (24a, 24b); and a battery (56, 118, 120, 122, 124, 126, 128, 130, 132) supported by the upper frame (14a, 14b) and the lower frame (16a, 16b) and configured to supply electric power to the drive unit; wherein the battery (56, 118, 120, 122, 124, 126, 128, 130, 132) includes a battery lower portion (56e, 118d, 120e, 122f, 124d, 126d, 128f, 130e, 132f) and a battery upper portion (56f, 118e, 120f, 122g, 124e, 126e, 128g, 130f, 132g) above the battery lower portion (56e, 118d, 120e, 122f, 124d, 126d, 128f, 130e, 132f) with regard to an upward-downward direction of the vehicle, characterized in that the drive unit is constituted by a drive motor configured to drive the pair of rear wheels (24a, 24b); and the battery upper portion (56f, 118e, 120f, 122g, 124e, 126e, 128g, 130f, 132g) includes a projection (56b, 56c, 118b, 120b, 122b, 124b, 126b, 128c, 130b, 132b) that overhangs in at least a horizontal direction of the vehicle with respect to the battery lower portion (56e, 118d, 120e, 122f, 124d, 126d, 128f, 130e, 132f); and at least a portion of the drive motor is below the projection (56b, 56c, 118b, 120b, 122b, 124b, 126b, 128c, 130b, 132b) with regard to an upward-downward direction of the vehicle. at least one upper frame (14a, 14b); at least one lower frame (16a, 16b); a front frame connecting a front portion of the upper frame (14a, 14b) with the lower frame (16a, 16b); a rear frame connecting a rear portion of the upper frame (14a, 14b) with a rear portion of the lower frame (16a, 16b); a pair of rear wheels (24a, 24b); a drive unit configured to drive the pair of rear wheels (24a, 24b); and a battery (56, 118, 120, 122, 124, 126, 128, 130, 132) supported by the upper frame (14a, 14b) and the lower frame (16a, 16b) and configured to supply electric power to the drive unit; wherein the battery (56, 118, 120, 122, 124, 126, 128, 130, 132) includes a battery lower portion (56e, 118d, 120e, 122f, 124d, 126d, 128f, 130e, 132f) and a battery upper portion (56f, 118e, 120f, 122g, 124e, 126e, 128g, 130f, 132g) above the battery lower portion (56e, 118d, 120e, 122f, 124d, 126d, 128f, 130e, 132f) with regard to an upward-downward direction of the vehicle, characterized in that the drive unit is constituted by a drive motor configured to drive the pair of rear wheels (24a, 24b); and the battery upper portion (56f, 118e, 120f, 122g, 124e, 126e, 128g, 130f, 132g) includes a projection (56b, 56c, 118b, 120b, 122b, 124b, 126b, 128c, 130b, 132b) that overhangs in at least a horizontal direction of the vehicle with respect to the battery lower portion (56e, 118d, 120e, 122f, 124d, 126d, 128f, 130e, 132f); and at least a portion of the drive motor is below the projection (56b, 56c, 118b, 120b, 122b, 124b, 126b, 128c, 130b, 132b) with regard to an upward-downward direction of the vehicle.