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Category: Laptop Battery

  • Windows 7 Tips

    How to Tweak the Low Battery Action On Your Windows 7 Laptop

    If you’ve got a netbook with really great battery life, you’ll probably still have loads of time left even with only 10% of the battery remaining. Here’s how to tweak the settings so it alerts you or goes into sleep mode at a more reasonable time.
    Note: obviously if you don’t have a great battery in your laptop, you should probably be careful with these settings or you might lose data. If anything, you’d be better off making the notifications happen sooner in that case.
    Tweaking the Battery Notifications / Actions
    You’ll want to start by heading into Power Options from the Control Panel, or more easily, by just clicking on the power icon in the tray and going to More Power Options. Once you’re there, you can tweak the current plan by clicking the “Change plan settings” link.
    Next you’ll want to click the “Change advanced power settings” link at the bottom of that dialog.
    Now find the option for Battery at the bottom of the dialog and expand it until you find the various settings for Critical, Low, or Reserve battery levels.
    Here’s how the different levels work:
    * Low Battery is the first notification you’ll get, generally at 10% battery life remaining. At this point you’ll get a notification unless you feel like turning it off. You can change the Low Battery Action to go into sleep mode if you want, though that would defeat our purpose here.
        
    * Reserve Battery is when the laptop will start taking drastic measures to stop using extra power, usually at 7%.
        
    * Critical Battery is when your laptop will immediately go into Hibernate mode, usually at 5% remaining. You can change the Critical Battery Action to Sleep instead of Hibernate if you choose.

    You can customize any of the levels here, and you can even disable the notification entirely if you want.

  • Windows 7 Tips

    Find Out How Healthy Your Battery is on Your Laptop
    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 won‟t 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.
    6. In the HTML file, scroll to the end till you get information like this:
    This shows the battery ID, Manufacturer name, Chemistry, Design capacity and most importantly the last full charge.

    So as above screenshot Dell Studio 15 battery has design capacity of 5200 and now its giving max full charge of 3565 that counts its efficiency to around 70% it has degraded around 30% in 6 months