CONSTRUCTION LASER LEVEL

A laser level system comprises a bracket comprising a mounting portion for mounting the bracket to an object or a structure, and a base portion extending transverse to the mounting portion. A laser level is mounted on the base portion of the bracket, and is rotatable relative to the bracket and configured to project at least one laser line. A power source, configured to power the laser level, is disposed in the bracket. The power source comprises a battery assembly which is an integral part of the bracket and is not removable from the bracket. The integral battery assembly comprises a battery assembly housing and a plurality of pouch cells housed in the battery assembly housing.