Stable release: [URL]http://osirisdevelopment.com/BatteryBar/download.html[/URL] Information: [URL]http://osirisdevelopment.com/BatteryBar/index.html[/URL] Unlike Windows' bundled power meter this application helps you estimating battery time left based on average calculation of your objective use of anylaptop computer. The key feature: the more battery cycles you do the more accurate the estimated time left. Very useful.