This battery is brand new and original. This replacement battery compatible with mentioned iPhone model. It is used to replace the unresponsive battery or the battery that can not be fully charged for your iPhone. New Lithium Ion batteries must be FULLY CHARGED and FULLY DISCHARGED 2 to 3 times, before being FULLY CONDITIONED. Please remember that a new 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'll never have to condition your battery again! NOTICE: WARRANTY : STAND BY / BACKUP REPLACEMENT : 7 DAYS REPLACEMENT WARRANTY