- by Bryan Veldboom - updated on 3/15/2022
Did you know that the battery in your MacBook has a limited lifespan? Over time, your battery will begin to degrade. Once it reaches the end of its lifespan, you'll need to have it replaced. This article will help answer your questions regarding MacBook batteries and help you determine when and where you should replace them.
A battery's lifespan is measured in charging cycles. One full charging cycle is completed when you've used a measure of power equal to 100% of your battery's total capacity. Let's say that you use 75% of your battery's capacity on a Monday, then charge it back up again overnight. If you use 25% the next day, you will have completed one full charge cycle over the course of those two days.
Modern MacBook batteries can last up to 1,000 charging cycles, although the lifespan of your battery will depend on what model MacBook you have and when it was manufactured. You can check your model against the list provided on the Apple support page for a rough estimate of how long you can expect it to last. For most people, a lifespan of 1,000 cycles will typically last between two and three years, although this will vary depending on your usage.
Apple makes it easy to check how many cycles your laptop battery has completed. Just follow these easy instructions:
MacBooks also allow you to check your battery's health using the following steps.
For macOS Big Sur or later:
For macOS Catalina or earlier:
Once that's completed, you see one of the following messages:
In addition to checking the cycle count or battery health, you can usually tell when a laptop battery is at the end of its life based on how it's performing. A dying battery will have a hard time holding a charge. If you find yourself having to charge your laptop more often than you used to, it's a good bet that your battery is getting old. Old batteries can also cause a laptop to overheat or shut down unexpectedly.
When shopping for a replacement battery you will need the model and manufacture date of your particular MacBook. This information is easy to find. Simply click on the Apple symbol in the top left corner of your screen and select "About This Mac." The details of your particular laptop will display beneath the operating system you are currently using.
MacBook models manufactured in 2009 or later feature built-in batteries that are glued inside the laptop's casing. Unless you really know what you're doing, it's best to have your battery replaced by a professional. Visit our Laptop Repair Service page to schedule a battery replacement appointment at your nearest store. If you don't see "battery replacement" listed for your particular model, don't worry. Many of our stores have additional battery options in-stock. Just call your nearest Batteries Plus location and ask them if they have any replacement batteries for your model.
Looking for additional accessories for your MacBook or other brand laptop? No problem. Batteries Plus sells UPS systems, surge protectors and more. Do you have additional questions regarding laptop batteries? Read our blog article entitled "Do I Need to Break In a Laptop Battery?" for more information.