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Battery Guardian helps you keep your Mac battery healthy. A healthy battery is one that is regularly depleted and charged all the way back up.

Battery Guardian offers an easy way to remember to deplete your battery. 30 days after your battery was last depleted, Battery Guardian will remind you. Battery Guardian puts a small heart in the top-right of the screen. When your battery needs depleting, the heart will turn red.

Battery Guardian can also add an event to your calendar to remind you. This can be particularly useful because the calendar can be shared across all your devices. A quick look at your calendar from more...

What's New

Version 1.0.1: Release notes were unavailable when this listing was updated.


OS X 10.6 or later

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Neutralzone Member IconComment+180

Could be useful for older MacBooks with removable batteries, but do note that for unibody MacBooks with built-in batteries Apple says that "Current Apple portable computer batteries are pre-calibrated and do not require the calibration procedure..."


Reply2 replies
Version 1.0.1

Is is not about calibration, it is about the regular complete depletion, once in approx. a month or so. This cannot do any harm to the battery. Note that my battery has 1878 cycles, and is still at 78 % of the design capacity just because I regularly do named depletion.
There are some simple rules for keeping a battery as long as possible. One is regular depletion; another one: never keep it charged for a too long time; never keep it unused for a long time (months...); do not keep it totally emtpy if not used for a long time, keep it at 50 %.
Of course, there is no need for an app to do this, but one which reminds you depletion cannot be bad.


Regular complete depletion IS the calibration procedure. There is no difference. My battery is at 95% so I'm doing quite well without the depletion.

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Current Version (1.x)


Downloads 458
Version Downloads 200
Type Utilities / System
License Free
Date 21 Feb 2014
Platform Intel 64 / OS X / Intel 32
Price Free
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