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  1. #1
    SitePoint Member
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    Hi,

    I bought a Umax ActionBook 640T 10 months ago and the
    battery has recently died. I have read around the Internet
    on such things and one site in particular says that these
    (Lithium Ion) batteries should last for around five years
    (and not 10 months).

    Further reading discovered the following at:

    http://support.umax.co.uk/actionbook/batteries.htm

    ------------------------------------------------------------

    Lithium Ion
    -----------

    This is the Newest and most expensive type of battery. This
    does not have a memory in the same way that the NiMH
    batteries do and will not benefit from periodic total
    discharging and recharging.

    ------------------------------------------------------------

    Obviously I'm going to have to buy another battery - but I
    am in need of some advice (I can't seem to get it from the
    Umax site).

    What I want to know is this: How should I treat the new
    battery to make it last longer than 10 months?

    With the old one I simply ignored it and used AC power 90%
    of the time. Is this wrong? Should I be using the battery
    at all times (except when recharging)? Should I be letting
    the battery run out completely before recharging it? Is it
    possible to overcharge Lithium Ion batteries (i.e. did I
    kill it by using AC power most of the time)?

    Or did I simply get a faulty battery to begin with?

    Jason

  2. #2
    AdSpeed.com Son Nguyen's Avatar
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    Hi Flibbety Jibbet, the 3000th member of SPF!

    I use a Toshiba for about 1 year. It has Lithium Ion and I could give you some basic stuff that I know:

    How should I treat the new battery to make it last longer than 10 months?
    - Follow the answer of your questions

    With the old one I simply ignored it and used AC power 90%
    of the time. Is this wrong? Should I be using the battery
    at all times (except when recharging)?
    - Nah, actually I don't think it's a good idea to use the battery all the time! Use AC when it's available. When using AC, the battery will be recharged too, but it won't be overcharged (i don't think any system that would do so!)

    Should I be letting the battery run out completely before recharging it?
    - Well, to maintain the battery at its peak, they suggest that you do so. But with me, it's not easy to do so. Anyway, it's up to you, but the answer is yes!

    Is it possible to overcharge Lithium Ion batteries (i.e. did I kill it by using AC power most of the time)?
    - as the above answer, don't worry, it won't (with my system), and I believe other systems would have some common sense

    Hope these help
    - Son Nguyen
    AdSpeed.com - Ad Serving and Ad Management Made Easy

  3. #3
    SitePoint Addict jamesglewisf's Avatar
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    Follow the manual, otherwise it doesn't matter how you use it. L-ion batteries are the best. It doesn't matter when you re-charge them or anything. You probably just got a dud.
    Jim Lewis
    To BE or Not to BE, or: How I Learned to Stop Worrying and Love the Barium Enema
    FrappyDoo Forums

  4. #4
    SitePoint Zealot
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    My first laptop was a Umax (shudder). Can't remember the model--got it about 2 years ago. But I had battery problems after about 10 months. The battery's life seemed like it was less than half! I could maybe run for half an hour (just doing basic word processing) on it when it started out fully charged. It wasn't L-ion, however. But not too much later the computer had an identity crisis and thought it was an expensive doorstop. It never got past that, and now I have a Compaq. My current battery is L-ion, and I don't run on just the battery very often, but after using the same battery for over a year, it will still run the computer quite well.
    --Bill
    Lake Superior Smokin' Brews Make It Different: Brew Your Own!
    L'Etoile du Nord Web Development Providing Real Direction in a Virtual World
    MSN IM: smokinbrews-AT-hotmail-DOT-com
    Brewin', Vintin' & Smokin' Forums Moderator

  5. #5
    AdSpeed.com Son Nguyen's Avatar
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    Yes, the Li-ion battery is superior to NiMH, not only for laptop, but for battery in general.
    - Son Nguyen
    AdSpeed.com - Ad Serving and Ad Management Made Easy

  6. #6
    SitePoint Enthusiast Sparklit's Avatar
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    10 months... warranty?

  7. #7
    Don't get too close, I bite! Nicky's Avatar
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    Sparklit is right - do you not have a 12 month warranty?

  8. #8
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    Yes, I have a one year warranty, but the battery is
    considered a 'consumable' - and therefore only covered
    for three months...

  9. #9
    SitePoint Addict jamesglewisf's Avatar
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    It might be that if you complained loud enough they would fix it. Tell them you heard from another customer that his only worked well for about 10 months also. Just be polite when you complain--you get further that way.

    I'd send a certified letter. You can also just keep asking for the manager of whoever you are talking to. At some point they will probably send you to the real customer service department instead of the phone bank.

    You can also ask about how to file a formal complaint with the company. I know that IBM had a formal complaint office that evaluates/resolves complaints within 72 hours.
    Jim Lewis
    To BE or Not to BE, or: How I Learned to Stop Worrying and Love the Barium Enema
    FrappyDoo Forums


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