BatteryBar is an application through which you can monitor and measure your battery. It shows real time battery status for you. Apart from the Current battery status it provides information like :

• Discharge Rate/Charge Rate
• Estimated Full battery Lifetime:
• Battery Wear %
• Battery Charge Percentage
• Current & maximum capacity of Battery

You can check out current Battery status  in percentage as well it would show how much capacity battery have now and how much it had when it was fresh. Battery wear would tell hw much part of your battery is decayed now.

When you are charging the bar will turn to blue and show the time remaining to complete the change while when not charging the bar will turn green and show the time to get the complete battery drained.

My laptop’s battery has weared out as much as 42% in last 8 months and i think its doing it pretty fast.

Tx to Win7Hkr for providing link to this wonderful application.