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How to fix your dud laptop battery – in one simple lesson


laptopbatteryfix2 How to fix your dud laptop battery   in one simple lesson

This short video gives an excellent tutorial on how to fix a dud laptop battery. The footage assumes you have a battery which contains standard Lithium cells which can be easily replaced with a minimum of soldering, so if your machine doesn’t, you’re probably best advised to go out and just buy a new battery if you can afford it.

laptopbatteryfix small How to fix your dud laptop battery   in one simple lesson

It never occurred to me that laptop batteries would contain easily replaceable cells (duh) so this is really interesting. Of course you’ll need to be proficient enough to use a soldering iron and MOST IMPORTANT –  DO NOT do this if you are in any way uncertain as to how to to wire together circuits and stuff. Lithium battery cells have a tendency to explode if mistreated, overheated etc, so IF IN DOUBT –  DON’T DO IT!

There, have I put the warning strong enough for you?

 Dead laptop battery? Don’t buy a new one…hack the old one! I’ll show you how!

 How to fix your dud laptop battery   in one simple lesson

Nigel is the managing editor of the Red Ferret, as well as a freelance columnist for the Sunday Times newspaper in London. Loves tech and fancies himself as a bit of a futurist, but then don’t we all?

Nigel – who has written posts on The Red Ferret Journal.



  • http://www.redferret.net Dan Ferris

    I hope he shows you how to stuff it back into the case, I guessing that would be hard to get onto a plane.

    • http://intensedebate.com/people/Nigel Nigel Powell

      No, the idea is you take the cells out of the plastic holder, replace them, and re-assemble. It ends up looking just like the original.

  • http://intensedebate.com/people/p51d007 p51d007

    PLEASE be VERY careful when you do this. That little circuit board in the picture is a thermistor strip. Damage it and if the batteries overheat, look out! Also if you buy batteries to replace your old ones, try to find a supplier that sends you a somewhat matched set.
    If the impedance on all of the batteries does not match, one may charge faster than the others, resulting in an overheat, or explosion.
    Yeah, it can be done, I've done it several times, but please be careful.

  • Joaquim

    i have 2 questions:
    1 – that's true that bateries have a limited(by company and not naturaly) the cycle time?
    2 – how can i see the volts and other important things(sorry said only volts, but my english is limited).
    thanks

    • http://www.redferret.net Nigel Powell

      I think you'll find that most limitations on battery cycle time (I assume you mean recharge time and not battery lifetime?) are put in place by manufacturers as a safety precaution.

      To read off volts and other stats you'll need to buy a multimeter.

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