This is an aftermarket replacement battery, an Apple OEM part.
Note: Lithium ion battery shipping regulations limit the shipping methods for orders containing batteries. Domestic orders may only be shipped via Standard shipping. iFixit is not able to ship batteries internationally or outside the contiguous at this time. iFixit Customer Support will contact you if your order needs to be modified after it is placed.
Note: A small percentage of users have experienced issues with aftermarket batteries failing to be recognized properly in devices running Mac OS X El Capitan (10.11.x) or Sierra (10.12.x). If your system does not operate properly with our replacement battery, it can be returned for a full refund.
Apple Part #:
MOBILE : 01715240008