BATTERY ASSEMBLIES

A battery assembly includes a battery box and a cell module disposed inside the battery box. The battery box includes a bottom plate having a bottom cavity inside, and a top surface of the bottom plate is provided with intercommunicating holes communicating with the bottom cavity. An outer wall of the battery box is provided with at least one valve installation hole communicating with the bottom cavity and configured to install a pressure relief valve. The cell module includes a top bracket and a cell assembly including a plurality of cells each having an explosion-proof valve directly opposite to the intercommunicating hole. The top bracket is disposed at a top of the cell assembly, and the top bracket is connected with the battery box, so as to press the cell assembly against the battery box.