I was like many of you thinking that the battery drained way too fast especially when using data until I tried the following smart phones (my friends' phones):
1) iPhone 4s, which had a 92% charge after 4 hours idle and 24 minutes usage time. I opened up safari and surfed a couple of car sites for about five minutes. The battery percentage went down to 88% in less than five minutes. My lumia drains about 3% every 5 minutes of surfing and 1% every 3 hours idle.
2) Samsung galaxy SIII, had a 71% charge after 8 hours idle (and my friend said he used it moderately to heavily throughout the day). I did the same test as in number 1) and the battery went down to 68%. Better than the iphone but the same as my lumia.
It seems like this is a general issue with smart phones.
1) iPhone 4s, which had a 92% charge after 4 hours idle and 24 minutes usage time. I opened up safari and surfed a couple of car sites for about five minutes. The battery percentage went down to 88% in less than five minutes. My lumia drains about 3% every 5 minutes of surfing and 1% every 3 hours idle.
2) Samsung galaxy SIII, had a 71% charge after 8 hours idle (and my friend said he used it moderately to heavily throughout the day). I did the same test as in number 1) and the battery went down to 68%. Better than the iphone but the same as my lumia.
It seems like this is a general issue with smart phones.