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#Battery health for mac how to#
#Battery health for mac full#

“MacBook Air (13-inch, Early 2015)”-then click the System Report button and scroll down to Power in the left sidebar. Click the Apple logo in the upper left corner of your screen, then click About This Mac. MacBook users have to do just a tiny bit of legwork to get this information, but it’s easy enough for anyone to handle.

#Battery health for mac how to#

How To Check Your Battery Health on a Mac If the report shows drastic differences, you may want to get a new battery.Ģ. There are some steps that you can take to maximize your battery life.

With this kind of laptop battery life test, you can identify problems that affect your battery life.

And the time your computer ran on battery or plugged into the power outlet. The sweet spot for a lithium battery in terms of long-term health is between 80 percent and 40 percent.

Check the battery’s usage and duration.

#Battery health for mac full#

Compare the battery life at Full Charge versus Design Capacity from the time when you purchased the laptop.Observe how Full Charge Capacity gradually decreases in comparison with Design Capacity.See how much battery capacity has drained over the last few days in different power states.As batteries wear over time, the full charge capacity will be less than the design capacity. You’ll expect a reduced full charge capacity. Also someone in the comments just mentioned about. The next day, you charge the battery at 50, which leaves 10 in the cycle. I once talked to Apple representative, and they told me that it hits 91-92 in around 2-3 years of usage. The difference between Design Capacity and Full Charge Capacity. For example, if your MacBook battery is at 40 and you recharge it, you still have 60 left on the current charge.This command saves a battery report in HTML format toĬ:\Users\Your_Username\battery-report.htmlĭouble-click the file to open it in your browser. If you have a MacBook, MacBook Air or MacBook Pro with built-in batteries, Apple will replace the battery for around 130, and if your keyboard needs replacing, you get a battery. To generate a battery report, open Command Prompt and type in powercfg /batteryreport. You can use it to generate a precise report of your battery history. It includes information about your battery performance and lets you observe the decline in battery capacity that inevitably occurs over time. The powercfg command is a hidden tool on Windows.