Novel fool-proof battery connecting device with battery box

The utility model discloses a novel fool-proof battery connecting device with a battery box. The novel fool-proof battery connecting device comprises a battery connecting elastic member and the battery box, wherein the battery connecting elastic member comprises a connecting spring plate member or a connecting spring member, and two contact parts which are both of negative contact part structures are respectively arranged on the left side and the right side of the connecting spring plate member or the connecting spring member; a positive stop ball structure is arranged in the battery box; one of the contact parts of the connecting spring plate member is clamped in the positive stop wall structure, and the outer side plane of the contact part is lower than that of the positive stop wall structure; or, one of the contact parts of the connecting spring member is clamped in the positive stop wall structure, and the plane where the contact is located is lower than the outer side plane of the positive stop wall structure. According to the utility model, a spring or other structures for distinguishing the positive pole from the negative pole is/are not required, the contact part at the positive pole of a connecting battery is pressed into the positive stop wall structure of the battery box to distinguish the positive pole from the negative pole, and when the positive pole and the negative pole of the battery are reversely mounted, a fool-proof effect can be effectively achieved.