The invention relates to a randomly shaped three dimensional battery cell with a shape conforming conductive covering. Described is an apparatus comprising: a randomly shaped cathode; an anode current collector positioned in the randomly shaped cathode; and an outer conductor coupling the randomly shaped cathode, the outer conductor wrapping the randomly shaped cathode. A method is provided which comprises: forming a flat or tubular core to operate as an anode current collector; forming a randomly shaped cathode over the flat or tubular core; and applying an outer conductive skin over the randomly shaped cathode. Described is a system which comprises a memory; a processor coupled to the memory; and a battery to provide power to the memory and the processor, the battery according to the apparatus described above.