However, your MacBook Pro is on Apple's 'Vintage' list. I would prefer an OEM battery since there seem to be issues with most aftermarket replacements. However, Apple's official policy is that the battery should only be serviced by Apple or an Apple Authorized Service Provider. The battery is replaceable, and a fairly simple thing to do with the correct tools. Contact an Apple Authorized Service Provider or Apple Retail Store for assistance servicing a removable battery.' Most older Mac notebooks have removable batteries that you can replace yourself. MacBook Pro (13-inch, Mid 2009) and later MacBook Pro (15-inch, Mid 2009) and later.All MacBook Pro computers with Retina display.MacBook (Retina, 12-inch, Early 2015) and later.These Mac notebooks have built-in batteries: MacBook, MacBook Air, and MacBook Pro computers with built-in batteries should only have their batteries replaced by an Apple Authorized Service Provider or Apple Retail Store. Attempting to replace a built-in battery yourself could damage your equipment, and such damage is not covered by warranty. 'Servicing the battery in your Mac notebook How do I confirm if my mac has a removable battery? But the link below seems to suggest otherwise. I thought my early 2011 macbook pro has a removable battery. All OWC brand memory is thoroughly tested and assured to perform flawlessly with your iMac and is covered by a Lifetime Advance Replacement Warranty and a Money-Back Guarantee.Thanks for you reply. To make the memory installation process as stress-free and straightforward as possible, we provide step-by-step installation videos to walk users through the upgrade process and expert technical support, who are more than happy to answer any questions you may have. Since the debut of the Apple iMac in 1998, OWC has offered Apple-compatible memory upgrades for any Apple iMac desktop. All OWC brand memory is thoroughly tested and assured to perform flawlessly with your particular Mac Pro model and is covered by a Lifetime Advance Replacement Warranty and a Money-Back Guarantee. We also offer expert technical support who are more than happy to answer any questions you may have. To make the memory installation process as straightforward as possible, we provide step-by-step installation videos to walk users through the upgrade process. Since the Apple Mac Pro debut in 2006, OWC has offered Apple-compatible memory upgrades for any Mac Pro model. After removing the casing, you can access the original memory modules and replace them with any other Apple-compatible memory. On the top of each Mac Pro, there is a locking mechanism that will allow you to remove the exterior casing when unlocked. The memory upgrade process for any Mac Pro is easy and should only take about five minutes to complete.

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