Power One Batteries offer: -Optimized Battery Performance and Reliability No corrosion. The stainless steel housing offers high stability and safe protection against corrosion. -Optimized quality under variety of environmental conditions power one cells provide additional reliability and safety due to: - threefold sealing design - patented PTFE film technology Precision manufacturing process fully automated high speed lines ensure consistent quality cell after cell. 100% tested -every cell is tested for its electrical and mechanical characteristics in compliance with its specification. Tab technology guarantees longer shelf life proven under extreme climatic conditions in long term testing. Rapid Activation- battery activates within seconds after removal of tab.