... life 4,No memory effect 5,Environmentally friendly. Deleterious metals such as Hg, Cd, Pb are not contained. 6,Light weight ... voltage protection are needed, and the voltage protection is monitored by the outside circuit. 8,Self discharge is about 6% ... : -20~60 Storage: -20~45 We can supply such models: Cylindrical14430,14500,1465017500,1767018500,18650,Prismatic363450,043443,043048,043450053040 ...