I bought the extended battery the first day the phone came out in march. I noticed that the battery doesn't last long like other people here say it does. Mine usually only lasts 24 hours or less. I unplugged it at 7am and now at 220am the next day I am at 44% left with only 2hrs 30 minutes of use left. I am only reading emails, texting and browsing the internet. If I use an radio app like iheartradio it dies after 5 hours. What am I doing wrong?