Almost every person who uses a laptop wants to know about the exact timing of the battery backup remaining on the laptop. Yesterday I was googling for the same and I found this amazing utility called BatteryBar.
BatteryBar is very simple tool which calculates the battery backup time as per the remaining percentage of battery you are left with on your laptop and displays it in the taskbar in the form of battery bar. BatteryBar displays the time left on your battery in hours:minutes format.
BatteryBar does not include any help file or executable associated with it loads few dll and gets embedded with windows explorer.
After installing BatteryBar you need to load it in the TaskBar by right clicking on the taskbar, select New Toolbar and click to select BatteryBar
When your laptop is connected to power the bar will display On A/C signal text or the time it will take for the full battery recharge.