###New to Android with Urgent question###

How long should the Samsung Galaxy wonder Battery last for with continuous usage for web browsing and twitter for example ?
Or how long should it last for complete stand by ?
I am asking because I bought a new Galaxy W and the battery last only for very few hours with the usage mentioned above , and I wanna know if this is normal or I have to replace it ?

Thanks in advance

 

Thank you so much

Thank you so much for info , But I am still very disappointed from the battery life ,
what makes me so disappointed is that I compared my Galaxy W Battery with Galaxy fit Battery , in a life experiment making exactly the same thing on both phones ( open wifi and download from the market ) , My Galaxy W take about 3-4 minutes for the battery to decrease by 1% , while the Galaxy fit takes about 30 minutes to decrease this 1% .
The owner of the Galaxy fit told me that may be the reason is that I have 1400 processor while he has only 600 processor , and the faster the processor the less the life battery , I don't know whether what he says id right or wrong .
So I am still confused whether to take it to the warranty or it is normal ,
Can you or anyone tell me whether the experiment result is normal or I have to go to the warranty ?

Thanks in advance