BATTERY AND ELECTRIC DEVICE

The present application relates to a battery and an electrical apparatus. The battery includes a plurality of battery modules arranged in sequence in a first direction; each battery module includes battery cells and side plates arranged on both sides of the battery cells in the first direction, and the side plates of two adjacent battery modules are connected to each other. In the two connected side plates, one side plate is provided with clamping protrusions, and the other side plate has clamping grooves, and the clamping protrusions are clamped into the clamping grooves to prevent each other from moving in a second direction, the second direction being perpendicular to the first direction. The battery provided in the present application has good safety.