NewerTech NuPower Battery Replacement Kit https://eshop.macsales.com/item/NewerTech/BAP13MBPR74K/ Restore You Mac's Runtime! When high-performance, quality, and longevity are your battery upgrade criteria, NuPower is your answer. NuPower batteries are designed to meet and exceed factory specifications. With renewed battery life you can listen to more music, watch more videos, and get more work done between recharges. To ensure your confidence and satisfaction, these highest-quality batteries are backed by free, award-winning US-based support and a one-year, 48-hour, or less turnaround warranty. A Perfect-fit Solution NuPower batteries are engineered to perfectly complement the fit and finish of your Mac® notebook as well as offer full compatibility with applicable OEM sleep and power reduction modes. INSTALLATION DIFFICULTY LEVEL: 5 OF 5 Recommended for experienced technicians. Tackle the job in less than a day. Ready to take on the removal and replacement of your soldered OEM battery in your 2013-2015 MacBook Pro Retina notebook? This complete DIY tool kit from NewerTech will help you do just that. Includes a high-quality, model-specific battery; comprehensive, model-specific video guidance, and 24/7 customer support; plus all the tools necessary to get the job done. Everything has been tested for usability and reliability, including the adhesive remover you’ll need to lift the OEM battery from its secured position. Works with the following MacBook Pro models with Model ID: - MacBookPro11,1 - MacBookPro12,1