About a week ago, I got an iPhone 4. I?ve noticed that my battery drains really fast when my phone is just sitting in my pocket [it only lasts me about 6 hours before I have to charge it again]. Every time I plug it into the charger, it gets warm where the battery is. It also gets hot where my sim card is when I do something that uses the internet. I have tried everything to fix this, including restoring it as a new phone twice, with no luck. I have searched all over the internet trying to fix the problem and I can?t seem to find anything that works. Does anybody know how to fix this?