... 2.Grad A Li-Ion Cells 3.PVC shrink wrap 4.Manufactured under ISO9001-2000 ItemPlastic 18650 box use for high voltage power ... capacity, quality and life time. 6.Suitable for Cameras,GPS Receivers,PDA,Clocks,Remote Controls,Safety ... or other device needing 3.7V power.Building portable power device needing high energy density and ... structural appearance. Plastic 18650 box use for high voltage power supply