How to Change or Replace Mac Battery in a MacBook Pro 13" Unibody (Mid 2009-Mid 2012)

Have you experienced the Service Battery Warning On Mac and inclined to or pondering if you need to replace the Battery? First before replacing, we need to understand what service battery means on a MacBook Pro? It typically suggests that the battery is consumed (past it's shelf life or recommended cycle count, or has failed and cannot run at the expected or specified required full capacity. Suffice to say, it's likely that you need a new battery. Why do you need a new Battery? The main factor or crux is the charging life cycle of the battery. How many times can the battery be discharged and then recharged before it no longer functions at the recommended full capacity over a protracted period? For lithium-ion batteries (Mac book pro battery), the number of cycles before this threshold happens varies widely and is dependent on the quality of the battery build and the level of discharge which the battery invariably supports. Expected level of performance from your battery? Apple categorically states that its new batteries are designed to support 1,000 full charge-discharge cycles, after which the battery should still have 80% or more of its original capacity. Note that even after this long life-cycle has elapsed (a complete discharge and recharge every day for three years), your battery will still work, the downside is that it just would not have the same ability to hold a charge as it did when its operational performance was at its peak. It will continue to degrade slowly over time the span of its shelf life and will eventually stop working altogether, which can lead up a several years. macOS is quite adept at intelligent system monitoring when calculating cycles. Note: Partial charges do not count as a complete cycle; if you discharge your battery a bit and then charge it back up, that will only count as a fraction of a cycle for its internal monitoring. 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. In this video: I would show you how to replace the battery in (Mid 2009 - Mid 2012) unibody MacBook Pro. I would guide you through the steps of battery replacement and show how to disassemble the bottom cover and install your new battery, placing the new battery in and then assembling the screws and installing the bottom cover back on. I also test to see if the MacBook boots up after RAM upgrade and battery replace RAM Note: Adding more RAM as in this case will help you to speed up your computer. Alternatively, you can also clean up your system to make it run faster. Generally adding new components to a system can increase the overall temperature of your MacBook. However, more efficient hard drive can actually help cool down your system. However, in most cases, adding additional RAM increases the temperature of your computer. Useful links: Replace Battery https://youtu.be/SxKk4DByTqk https://youtu.be/iE1XqSFVWY4 https://store.ifixit.co.uk/products/macbook-pro-13-unibody-mid-2009-mid-2012-replacement-battery?variant=31636202455089 Replacement feet MacBook Pro 13" Unibody A1278 Mid 2009 to Mid 2012 https://store.ifixit.co.uk/products/macbook-and-macbook-pro-unibody-plastic-feet RAM (16GB) upgrade (Mid 2009-Mid 2012) https://store.ifixit.co.uk/products/macbook-pro-13-unibody-mid-2012-memory-maxxer-ram-upgrade-kit https://youtu.be/i54rVwpuW18 Adapter Apple Mag safe power adapter https://youtu.be/ynKTzsGFu44 https://www.apple.com/uk/shop/product/MC461B/B/apple-60w-magsafe-power-adapter-for-macbook-and-13-inch-macbook-pro How to replace MacBook Pro Unibody Rubber Feet in MacBook Pro 13" Macbook pro Unibody A1278 Mid 2009 to Mid 2012 Rubber feet https://youtu.be/9kA4yD4SkC8