I started work at 7 am at 100%, and it's 5 PM now and my phone is at 34%. I've turned off GPS,lowered the screen brightness and don't have an animated back ground. I surfed the web for maybe an hour and a half total and used you tube for about 40mins at full volume. It tends to linger around the 30-40% mark before it drains out. Is this normal performance? I took it to metro pcs and they told it it just drains a lot because of the snap dragon processor in it. Any help is appreciated and ty in advance. Oh also they told me not to charge it over night as it's bad for the battery. But I think everyone charges their phones while they sleep.