«Download version 2.6.6 for MacOS X 10.4 and iBook/PowerBook support»
coconutBattery 3

With coconutBattery you're always aware of your current battery health. It shows you live information about your battery such as how often it was charged and how is the current maximum capacity in relation to the original capacity your battery had when it left the factory.

You are also able to save the current maximum capacity of your battery. So you can see the changes of your battery health over time.
With the online service "coconutBattery Online" you can now compare your battery capacity with others.

coconutBattery is and will always be freeware. If you like it, a donation is always very welcome.

Edit: It seems that there was a banner ad which imitated a download button to catch download clicks for a third-party-software on the banner section. As I don't want to support this kind of ad I removed the banner and informed the banner provider about this. I am sorry for any inconveniences

Download (3.3 MB, MacBook/Pro/Air, MacOS X 10.7 or higher)
(Version 2.6.6 for MacOS X 10.4 and iBook/PowerBook support)
(Version 2.8 for MacOS X 10.5/10.6 support)
(Release notes for version 3.0)

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Try coconutBattery Online and compare your battery capacity with others


Current charge
The current battery charge (in mAh - miliampere-hour)

Maximum charge
The maximum capacity your battery can be charged with (in mAh - miliampere-hour)

Current capacity
see ->"Maximum charge"

Design capacity
The capacity your battery could be charged with when it left the factory (in mAh - miliampere-hour)

The Apple model identification string for your Mac

Manufacture date
Calculates the age of your Mac or Battery using the coded production date in the serial number of your Mac or Battery (Note: for Macs only the manufacture week can be calculated, in this case the date represents the first day of the production week)

Battery loadcycles
How often was your battery loaded from 0% to 100%? (Apple battery information page)

Battery temperature
Well, this is the current temperature inside your battery. You can toggle between Celsius and Fahrenheit by clicking on the temperature

Battery usage
Using the MacOS internal power information, coconutBattery calculates the current power consumption of your MacBook