Download BatteryBar – Windows 7 Battery Management Software
BatteryBar simultaneously and continuously monitors the battery as you use your laptop. As it follows from the battery, it keeps historical information about the battery and
give you a very accurate estimate of how much time is left before the battery.
You can BatteryBar utility, but with the right mouse button on the taskbar, select Toolbars, and then BatteryBar see your battery in the taskbar in Windows 7.