Dell Laptop battery problems 15 replies

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tdg__chris

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#1 13 years ago

I have two Dell laptop computers and they both the same problem with there battery’s. I was using them one day and battery went flat so went to change it but they wouldn’t change to full it will last about 5-7 secs. There is a small button on the bottom of the battery where you can see how must power is in the battery It worked before it went flat but now it just flashes at me. I have not had them that long 3-4 years I think, I thought that is was a bit strange that both laptop do exactly the same thing. I did read some were that It was a cut off chip in the battery and freezing them will fix it but I didn’t what to put the freezer before I got more info. The laptops are the Dell M50 and Dell latitude L400. Thanks.




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#2 13 years ago

What battery chemistry are you using? Ni-MH batteries have a natural lifespan of 500 discharge/recharge cycles. With two years use, they've probably far exceeded that. Lithium-Ion batteries last a little longer, but you can't expect miracles. I would say a year and a half is the absolute maximum you could expect of any battery. Once they reach the state that they are unusable (i.e only last a few minutes/seconds), you might as well throw them away. Order a new one from Dell or one of their resellers.




tdg__chris

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#3 13 years ago

There Lithium-Ion batteries. Its just because they stopped so suddenly. Somewere it said there is a cutoff chip in the battery to make you bay a new one and there [color=black]isn’t anything [color=black]wrong with the battery’s.[/color][/color]




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#4 13 years ago

Hmm. In that case I'd say you're safe trying it out in the freezer. It's an age old trick of reviving dead batteries, it may help. If that doesn't work, try and locate some information on removing said chip on the Internet. There are a lot of hardware sites out there with tutorials to help you with this kind of thing.




tdg__chris

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#5 13 years ago

[color=black]Is it possible that there is a timer or a c[color=black]ounter [/color]in the battery? [/color]




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#6 13 years ago

Quite possibly. Batteries these days are "chipped" to identify the battery, so that the appropriate ACPI settings can be used. Whether or not Dell would resort to placing a limit on their batteries is another matter, however it certainly wouldn't surprise me.




tdg__chris

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#7 13 years ago

[color=black]So do you think I could reset it if its there (which I think thereis, Knowing Dell) [/color]




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#8 13 years ago

It depends. You can most likely "flash" the chip, by removing it from its power source. (this will probably be a smaller, secondary battery as opposed to the main unit) In fact, by freezing the chip, you may well succeed in doing so. Batteries become inoperable when exposed to temperatures below freezing point (around -5 or so I would say). In doing so, you would starve the chip of power, and therefore "flash" it. I confess I have never tried it before, so it *may* work, it may not. In any case, it's worth a shot - It couldn't get much worse than it is already, could it?




tdg__chris

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#9 13 years ago

Cool thanks i will try that.




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#10 13 years ago

No problem.




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