Battery suddenly depleted, normal??

[Cecil B.]

I have this MBP 2.53ghz for about 5 mos. i read that the battery can last up to 7 hrs other says around 4 hrs. But on my laptop, its just 2 hrs after getting 100% charge.

i just did facebook, email and skype w/ video using wifi internet. Im also running in 30-40% display.

Is it time for me to send this back to the store for replacement since it still under warranty?

i already did battery calibration this month 1 time only.

installing the snow leopard can also solve my problem?

 

[miles01110]

It's probably because of Skype's video chat. It's a battery/processor hog.

 

[Irosaki]

skype video *shudder*

2 hours is impressive xD

 

[Cecil B.]

2 hrs is ok? thank you

but i still wondering bcoz i chat w/ my gf w/ skype also w/ the MB poly, she said it gets her 3 days to charge her computer. after work she play farmville and her work program plus video skype. but me after 2 hrs of chatting i have to charge again, huhhuhuhu...

i'm thinking bcoz after i bought this i used it immediately w/o charging, does it have effect for reconditioning the battry for the first time so that the battery wont last long for using?