BATTERY PACK

A battery pack includes a stacked battery and a pair of restraint plates. The stacked battery includes battery cells stacked in a stacking direction parallel to a vehicle up-down direction. At least one of the restraint plates is a specific restraint plate including a first portion and a pair of second portions each having low rigidity against a load input in the stacking direction as compared with the first portion. Each of the second portions is disposed along a direction orthogonal to the specific direction. When viewed from the specific direction, each of the second portions is disposed apart from each other at a location other than a center portion and both end portions of the specific restraint plate.