Rayner Software has created a great application that provides detailed monitoring of your Apple portable’s battery health. Armed with the ability to identify your exact Apple portable model and detect the amperage and voltage of your current battery its an ideal application to check up on the health of your Apple portable’s battery.
Batt supports real-time as well as logged monitoring of your Apple portable’s battery health. Our favourite bit, is its summary report and grading of your Apple portable’s battery health. Its been accurate so far although the purchase price, USD$15.00, might seem steep but its probably a good move to register a version if you have a portable as your main workhorse. Non-registered iBatt versions shut down after 10 minutes.