Abstract: A battery restraint system for an earthmoving vehicle includes a pair of non-metallic straps with one end of each strap securely fastened to the vehicle frame structure by a bracket. The other end of each strap has a loop which accepts one end of a tensioning bar. A threaded fastener and compression spring connect the center portion of the tensioning bar to the vehicle frame structure and apply a constant and consistent force on the tensioning bar and on the straps. Conventional battery restraints use a metal bracket clamped to the battery by several threaded fasteners. During vehicle operation, the threaded fasteners become loose which allows the battery to move. The fasteners are often difficult to gain access to for re-tightening. The subject battery restraint system maintains a constant force on the battery, and the single threaded fastener is easily accessed.