This Lithium-ion Battery has been designed for your SAMSUNG Smart Phone and it must be FULLY CHARGED and FULLY DISCHARGED 2 to 3 times, before being FULLY CONDITIONED.This Lithium-ion Battery’s Full Performance and Longevity is only achieved after 2 to 3 complete Charge and Discharge Cycles. After you go through 2 to 3 Cycles, you don’t have to condition your Battery again. All Talk and Standby times are approximate, depending upon the carrier’s network settings, signal strength, and features selected. Talk and Standby times will be lower in Analog mode as noted above.