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2 comment(s)| Battery ID | 1001SanyoDELL NT3628 |
| Manufacturer | Sanyo |
| Serial Number | 1001 |
| Chemistry | LION |
| Long Term | 1 |
| Design Capacity | 86580 |
| Last Full Charge | 30070 |
30
Mar 2010
Windows 7 Battery Information
Just recently my laptop battery has started to go downhill pretty rapidly. I have also started to get a notification about needing to replace my battery. I started looking to see if maybe this was an issue with Windows 7 since my battery didn't seem to be that old. During my search I discovered the "powercfg -energy" command that you can run from the command line in Windows 7. This little utility will run for a given amount of time (default is 60 seconds) and will spit out a report on your Battery. The default location of the report that is generated will be your users folder.
In order to run the utility you will want to open a command prompt as an administrator. Here is the output that I get when I run it.
C:\Users\jdavis>powercfg -energy Enabling tracing for 60 seconds... Observing system behavior... Analyzing trace data... Analysis complete.
Energy efficiency problems were found.
6 Errors 20 Warnings 14 Informational
See C:\Users\jdavis\energy-report.html for more details.
You can see the energy-report.html file that was generated. All you have to do is open that file and you will see a lot of information about the different errors and warnings that are being displayed. The one piece of information that I found very useful was at the very bottom of the report. It looked like this.
Battery:Battery Information
The last full charge shows my battery is only holding 34% and explains why it has been draining so fast as of late and also why Windows 7 is wanting me to replace it. Looks like it's time for a new battery.
Comments
Dual Batteries
This even works if you have a laptop with dual batteries. Pretty cool.
Todd Walls
Battery
I have a lot of HP Laptops in my company and I recently some Windows 7 machines have come up with the replacement message with a cross on the battery.
HP will not replace the battery if its over 3 months old but what is interesting is that out of 20 laptops of the same type and same model only one battery had died after 8 months of use. The other laptops are working fine and keeping about 2 hours of charge.
I wonder how manufacturers could get away with this.. or is there a way to stick this problem as manufacturer defect?.
In the old laptops even after 4 years i can get at least 30min battery life but these new windows 7 machines lasting 5min only after 8 months is a far cry for consumers.
Azam Ali
Furukawa Electric