Battery box

The invention discloses a battery box. The battery box comprises a box body, a hanging lug and an inner connecting piece, the hanging lug comprises a box body connecting part, a cluster frame connecting part and a handle part, the box body connecting part is fixedly connected with the end part of the side wall of the box body, and the handle part extends out of the side wall of the box body and is suspended; the cluster frame connecting part is connected with the cluster frame; the inner connecting piece comprises a first connecting piece and a second connecting piece; the first connecting piece is used for connecting two adjacent side walls of the box body, and the second connecting piece is used for connecting three adjacent side walls of the box body. According to the invention, the connection strength of the battery box is enhanced by adding the inner connecting piece at the connection part of the battery box, and the box body deforms to absorb impact potential energy when being impacted by matching with