Household energy storage battery pack

A household energy storage battery pack comprises a shell and a battery pack body, the shell body is provided with a port set, a side cover, a groove and a supporting column, the port set is connected with the battery pack body through a circuit, the side cover is fixedly connected with the shell body, the shell body is further provided with a cylinder and a clamping piece pressing the battery pack body, the battery pack body is fixedly provided with a supporting piece, and the supporting piece is provided with a semicircular groove connected with the cylinder in a sleeved mode. According to the utility model, the internal structure is stable, shaking is not easy, the safety is strong, the port groups can be stacked through the grooves and the support columns, and a plurality of port groups are connected in series and in parallel through circuit lines after stacking, so that the effect that a plurality of port groups supply power together is achieved.