Guaranteed Original Apple Replacement Battery 7340 mAh Li-ion For Apple iPad Air 2 A1566, iPad 6 A1567  - with 30 days replacement warranty for manufacturing defects. 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 will never have to condition your battery again!