Battery Drain

If my laptop battery is draining really quickly like 20 minutes, is it possible that it can be anything else than a knackered battery?????
JGWYAsked:
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oldgreyguyCommented:
1/ could be the (may be saying the wrong nomenclature here) the ac/dc or ac/ac or dc/dc converter in the laptop that isn't allowing the battery to be charged up

does it seem to charge real fast?

bill
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jhanceCommented:
Anytime a rechargeable battery begins self-discharging at this rate, it's an indication that it has developed an internal short and it's life span is over.  If it's more than 2-3 years old, it's certainly in need of replacement.  If it's younger than that, then you may have a charger problem but in my experience, 90% of the time the battery is at fault.
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JGWYAuthor Commented:
Yes is does seem to charge fast and i've only had it for a just over a year.........saying that I've had the machine plugged in for a long time and rarely let it fully run out before re-charging which I know is not good.

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oldgreyguyCommented:
is it still under warranty?, I would guess at this young age that it may be something other than the battery

bill
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JGWYAuthor Commented:
unfortunately the company went into receivership in september!!!! so the waranty is worth the paper it's printed on.......however i have found that if I ignore the warning when the battery gets to 0% it will still remain on for about another 40 minutes or so.

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oldgreyguyCommented:
at this point, I would charge the battery, pull the charger cable, wait 10 minutes, and plug it back in, do this several times, and see if that makes a difference on the time to run

bill
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JGWYAuthor Commented:
It seems to have sorted itself out. I drained it fully about 3 times and then fully recharged it and now it seems to be running for about 2 hours!!!!

Funny things these computers!!!!

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jhanceCommented:
This is the well known NiCd "memory" effect.  NiCd batteries should always be fully discharged before charging them up again.
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