A battery module (100, 200) includes a top bracket (11, 31), a bottom bracket (12, 32), a number of batteries clamped by the top and bottom brackets, and an insulative cover (14) fixed to a top side of the top bracket. The top bracket includes a number of ...

An electric power exchanging equipment (3) comprises a main body (31) which has a containing room (32), and a side edge of the containing room defines a battery fixing block (33). The fixing block (33) extends toward the containing room (32) in order to de...

The battery polarity inversion protection arrangement consists of at least one distance element (12) formed inside the battery compartment (14) near at least one contact (16) for at least one anode dome (20) of at least one battery or near an end of at lea...