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Battery for Sony Vaio

HI Friends,
I have a Sony Vaio Laptop VGN- FE880E.
One fine day, my battery stopped working. I can use the laptop only if plugged in.
Has my System stopped detecting the battery or is the battery dead?
Someone told me if i update my bios it will take care of the problem.
Please Advice!
I am having Windows Vista Ultimate OS intalled on the Laptop.
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1 Solution
You should be able to use the AC charger (aka power brick, battery charger) by plugging the ac charge into the wall and into your laptop.  A lot of these chargers have a green light that comes on letting you know the charger is working.  If that light is on and your laptop works, then you need to replace the battery.  If the light doesn't come on the charger, then you should probably replace the charger.  

Updating the software won't help this hardware issue.  ; )
Also, it is ok to run the laptop without the battery inserted.  Of course you will have to use the laptop with the charger connected until you replace the battery.
I have experienced problems with Dell power adapters where the power pack will not charge the battery even though the battery is good.  I do not know if Sony power packs have the same problem.  On my dell, you can go into bios and it will tell you what AC adapter you are using (60 watt or 90 watt).  If the power pack is bad, it will say unknown.  You may want to check you bios and see if it has anything similar to this.  If it is the power pack, it may save you on buying a new battery.  My laptop would still run on AC even though it did not charge the battery, so do not assume that just because the laptop runs with the power pack, that the power pack is not the problem.
If you can boot up into Windows, you should be able to see the life of your battery.  If it is increasing, then you will know that the battery is getting charged.  Unplug the charger and if the laptop shuts down, then the battery is forked (can't hold a charge).  If the battery doesn't charge but the charging light on the laptop shows up, replace the battery.  

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