Standard-state universal application battery

The utility model relates to the technical field of batteries. The utility model discloses a standard-state universal application battery. The battery comprises a bottom shell, a battery body and a handle cover, the lower end of the battery main body is electrically connected with a left slot group and a right slot group; wherein the left slot group and the right slot group are composed of slot components with the same number, each slot component comprises a metal slot piece and a spring sleeved on the outer wall of the metal slot piece, the inner port of the metal slot piece is fixed at the lower end of the battery main body through a screw, and the outer port of the metal slot piece penetrates through the bottom shell and is exposed outside. The battery disclosed by the utility model adopts a structure of the slot and the insertion column to carry out bidirectional barrier-free free connection of the battery, is not limited in forward and reverse plugging directions, convenient to use, stable in connection,