battery running out when not in use

[sam.h]

Hello all, I have a VGN-FE31H (core2duo, 1024mb ram/120gb hdd/geforce7400) purchased in Sweden 2 months ago and haven't used the battery since. I always use the AC adapter (with the battery unplugged and unpacked from its originally plastic bag).
The model of my battery is VGP-BPS2B (11.1V/4800mAh)

So I thought Id charge my battery since I would go on a trip in 3days and would not have time to charge the battery any date later. So i charged it maximum, removed it from the laptop and placed it in the bag.
And guess what? When i plugged the battery in after 3days the power was at 15% only!!!

So I could not use my lappy on the trip and there went some work that I would have done.
When I got back I started to experiment (charge it full, remove the battery and leave it there) and again happens the same thing.. it looses it power from nowhere.

Ive never seen a battery that just looses 3/4 of its power in just DAYS.

Anyone familiar with this? isn't it unacceptable to have a battery running out that fast when its not in use?

Ive not tried to contact sony support yet, as I'm waiting for a reply from other vaio users first.

And a sidenote:
Anyone know what the american modelnumber of my laptop is? So i could have a search for more answers. The specs are VGN-FE31H, core2duo, 1024mb ram/120gb hdd/geforce7400/motion eye webcam, no bluetooth, 15.4" screen)

[Blencogo]

Hi sam.h and welcome to Club Vaio.

It sounds like a faulty battery.

Contact Sony Support IMMEDIATELY because they will probably replace your battery provided you report the fault within 90 days of purchase. After this they will not replace it.

SONY SUPPORT

[sam.h]

Hi sam.h and welcome to Club Vaio.

It sounds like a faulty battery.

Contact Sony Support IMMEDIATELY because they will probably replace your battery provided you report the fault within 90 days of purchase. After this they will not replace it.

SONY SUPPORT 

 

Thanks for your reply, Contacted them today and they will ship a replacement battery with DHL on thursday.
Nice Support

EDIT:
I got it with DHL today!!!!!
and reported it yesterday to them. Thats what I call good customer service.

Going to test this baby now and see if it has the same problem.