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Thread: laptop battery

  1. #1
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    Default laptop battery

    I've recently noticed that my laptop's battery life has very suddenly
    decreased. It used to last around 4 hours, and now sometimes it won't
    even last through a one hour lecture.

    I know that these batteries tend to age and the time it lasts will decrease, but it was a very sudden thing. I've always been able to use my laptop through 3 or 4 lectures without having to bring the AC adaptor, but all of a sudden, one day, it died on me before the first hour was even up.

    Is it possible that I somehow damaged the battery or
    something?...because I remember that the problem seemed to have
    started when I accidentally knocked my backpack (with the laptop)
    against the wall. Or could it be something else? Is there any way to
    fix it?

  2. #2
    Member Spyware Fighter zep516's Avatar
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    Most often with rechargable batteries, i'm assuming it's lithium ion battery here because the majority of laptops are, the best way to test it's performace or see what the real life of the battery is, is to do something called cycling it.

    To cycle your laptop battery run it until it is completely dead, and then charge it, without using it, until it is completely full. Repeat this process at least once after you fully recharge it and then let me know what the status of the battery is.

    Make sure to never recharge batteries that are still half full, always run them until they're dead. If you don't do this the battery will develop what is called cell memory, and it won't retain a complete charge. Let me know how that works out.

    Zep.

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    Hi All:

    Don't think lithium ion batteries suffer from cell memory:

    http://en.wikipedia.org/wiki/Lithium..._disadvantages

    The above has been my understanding all along. Ni cads yes, but not lithium ion.

    BG

  4. #4
    Member Spyware Fighter zep516's Avatar
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    I stand corrected,

    Thanks basement, another day another item learned, my sole purpose for being here. I had no clue i really thought they needed the cycle- I do now there prone to premature failure.



    Sorry don't have an answer to you question.



    Zep.