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Battery Health Monitor is a free utility for PowerBook, iBook, MacBook, and MacBook Pro owners that monitors virtual all battery health parameters and displays them in an easy-to-read format.
Original capacity is an indication of the battery's storage when it was new. Current capacity indicates how much that original capacity has changed with use. Current charge shows the battery's current charge state while Charge Cycles indicates how many complete charge/discharge cycles the battery has experienced. The percentage value indicates approximately what portion of the number of total recharge cycles the battery supports have been used.
The annunciators at the top of the window indicate the state of the computer's power manager circuit and the battery or batteries installed.
Author's Note: Note:Although version 1.5 should work properly on all PowerBook, iBook, MacBook, and MacBook Pro computers, there have been problems in the past with some iBook and Aluminum PowerBook G3 and G4 computers not displaying the "Original Capacity" value or reporting that the battery data could not be read. If this occurs on your computer, you may want to try Battery Health Monitor version 1.2. (available at author's site)
Requirements:
OS X 10.2 or later
PowerBook, iBook, MacBook, or MacBook Pro
Universal Binary
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