Author: Harry Guinness / Source: howtogeek.com
Computer batteries have a limited lifespan and degrade over time, so they’re often the first thing to go in a Mac laptop. You can replace a battery yourself or pay Apple to do it, but you should check its health. first. Any battery life issues you’re having could be due to a runaway process or just heavy use.
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Check the Battery Cycle Count on Your Mac
A charge cycle is one full charge and discharge of the battery. Every modern Mac battery is rated for 1000 cycles; some older models (pre-2010) are rated for 500 or 300 cycles. While the battery won’t suddenly fail when it reaches its limit, it will start to hold less and less charge as it approaches that limit. Eventually, you’ll need to keep your Mac connected to its power cable to use it.
To check how many charge cycles your battery has been through, hold down the Option key, click the Apple icon at the top left corner of…
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