BATTERY PACK HOUSING

A battery pack housing for a battery pack comprising a plurality of battery cells is disclosed. The battery pack housing comprises a surround frame (), the surround frame comprising a plurality of walls arranged to surround the battery cells (), and a top panel () which is attached to the walls of the surround frame to form the top of the battery pack housing. The top panel () is attached to the surround frame () using an adhesive (). The top panel () is removable from the surround frame () to allow access to internal components of the battery pack.