How healthy your laptop battery is ? Windows 7 required

Windows 7 has a feature through which we can find out exactly how much battery you are actually getting from your Laptop battery, i.e. its efficiency, maximum charge potential.

Its a well known fact that as the age of lithium battery increases its charging capacity decreases and it wont charge to its full potential as when it’s new. We can find out exactly how much the battery of laptop is giving now.We can use the powercfg -energy to find out how health your battery is.

1. Open elevated command prompt by typing "cmd" in your start menu. & opening it with administrator privileges.

2. Type “powercfg –energy” into the command prompt & press Enter.

3. The command enables tracing for 60 seconds & would collect all the data after observing the system behavior.

4. After analysis it would generate a report.

5. The energy report is generated in HTML format in the directory shown in the command prompt.

Cmd Prompt Address\energy-report.html by default.

And in the report scroll down till some end and you will find a place where your battery details will be given like Battery id , Manufacturer , Serial no. and there will be something :
Design Capacity : some number like 56009
Last full charge : some number like 55677

Divide and get the efficiency of your battery ! ! !

My samsung n110's battery life has reduced to 88 % ! in some 3 months !

Source : http://windowsvj.com/wpblog/?s=how+h...ur+battery+is+

I use BatteryBar on Vista x64 on my laptop!

It shows quite a lotta info regarding battery wear etc.

check it out (Works on Windows 7 too! )- Osiris Development - BatteryBar, the most accurate battery meter for Windows

I use Notebook Hardware Control - a full fledged all in one software to control processor voltages, monitor battery health, system wide temperatures, overclock the mobile graphics card and set custom parameters for the internal HDD. Why do you want to go through all that mumbo jumbo when a simple software gives you a complete snapshot of your HDD.

Since this was inbuilt i didn't see thrid party applications but now will try them also looks pretty good. . But did not know that battery life reduces so quickly :p LOL

will try m out dude.. thnx for info

I still remember, i had a friend whose HP Pavillion Lappy gave a message that the battery is dying. He went to Service center and showed them that. They told that the OS is pirated and they won't accept that.

Then he showed that its genuine and got the battery changed.

The strange thing was Vista didn't show the message when Win 7 was showing it and that lappy had just a month of warranty remaining. Guess its time for everybody to move to Windows 7

Yea I know that issue. Lot of friends who have HP and use vista don't get time remaining in the battery icon. While I always used to get that on my studio 15 in vista as well as getting now in win 7! So I guess time to change company as well

Had to use "powercfg /energy" as "powercfg –energy" didn't work for me.
According to described method, my 15 months old laptop's battery life comes out to be 83%. Good or bad??

That's great. How many hours you use it daily?

Thats great my 4 months old netbook battery has reduced to 88 % . . . how many hours you use it daily man ?

^^ Around 2-3 hours on an average I guess.

Hence the difference. Mine has degraded by 42% in a span of 10 months! I just checked the total run time of my lappy and it's about 3100 hours or approx 129 days or in other words approx 10 hours a day!

How did you chack the total run time on your laptop?

start hd tune and see how many hours ur hard disk has been on- up time
that wud give u an idea !!

Exactly. Check how many hours your HDD has been ON and divide that number by the age of your computer. You get avg/day