Abstract: Cellular telephone mounting unit for a vehicular battery charger that supports and retains a cellular telephone onto a vehicle battery charger while the cellular telephone battery is charging. One variation of the mounting unit includes a semi-circular member having an arcuate surface, and a curved perimeter. The member including a notched portion formed in the arcuate surface so that a detachable attachment on the cellular telephone can be docked therein. The detachable attachment piece includes a supporting member and a fastening member. The fastening member including a head and a body rotatably connected thereto to allow the cellular telephone to pivot in the mounting unit.