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My vaio battery charges only upto 80%. Why is that so? It also tends to discharge too fast providing less working time. How to proceed to obtain 100% charge?

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Can you provide more details about your system? How old is the battery? – SoftwareGeek Feb 21 '10 at 16:23
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If you get a replacement, here's a link for you to bookmark, learn everything you'll have to know about proper treating a laptop battery: batteryuniversity.com – Molly7244 Feb 21 '10 at 16:43
My battery is only 5 months old.. In the beginning it used to get charged upto 100% bt then weeks ago i noticed this problem. Did calibrate it bt no improvement. – user28958 Feb 21 '10 at 17:00
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3 Answers

up vote 2 down vote

This usually happens with older batteries when they are simply unable to hold a full charge.

Is it an old battery, say more than a couple of years old? If so, you might want to think about replacing it with a shiny new one.

Microsoft have a troubleshooting page for laptop batteries which mentions this.

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up vote 1 down vote

Since you had it for only 5 months, you can take your laptop to SonyStyle store for checking on the battery. The warranty should still be good & you will probably get a new battery & put this issue behind.

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Well am from mauritius and got my laptop from america! So its kinda difficult for that! Anyway thanks i'll try callibration. – user28958 Feb 21 '10 at 21:01
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up vote 0 down vote

Turn off the battery care function of your vaio, this function limits the battery charging to 80% in order for the battery to have a longer useful life.

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