... MSDS,CE,ULapprovel ICR 18650 7.4v li-ion 1600mah battery Features:1, Longer storage life than Ni ... battery3, Installed IC chip will prevent the battery pack from over charge and over discharge.It ... helps protect battery chemistry integrity and prolongs battery life.4, Installed polyswitch will ... will provide Door To Door servive, we cooperate with UPS, DHL, FEDEX, TNT all year round, ...