Free OS X battery utility

MacInTouch: timely news and tips about the Apple Macintosh

myBattery 1.0 displays battery information for recent PowerBooks and iBooks. It shows not only the current battery charge in relation to the maximum battery charge (as mAh and as a percentage) but also the current battery capacity in relation to the original battery capacity, which indicates how well the battery is aging. In addition, it shows the number of battery load cycles and the age of the Mac, and it can display an alert if the wrong charger is connected. myBattery is free (donations welcome) for Mac OS X 10.4 and is available as a Universal Binary to run on Intel-based Macs.

I'm seeing quite a few 'universal binary' notes lately.