Vaio Battery Keeps Losing Power Even When PC Is Shut Off!

I bought a VGN-SZ300 Vaio notebook from newegg about a month ago. It's just
for word processing. I love the wonderful 13.3" widescreen LCD and the look
of my Vaio.

Here's the problem. The battery loses power even when the notebook is **shut
off**. It loses about 15% of power every 24 hours. Let's say I fully charge
the battery, turn it off, take the AC cord out, and leave the notebook. In 5
days, the battery will reach almost 0% power.

So, I discussed this issue with a Sony tech. He thought the battery was
faulty and sent a replacement. The replacement battery does the same thing!

It seems that my Vaio drains power from the battery even when it's
completely shut off. When I took out the battery and left it for days, it
did NOT lose power. Do I have a lemon Vaio? What might cause this strange
problem?


.

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