I have had my Note 3 for about 4 weeks. Love it. The battery life has always been awesome. 16 hours, moderate use...40% remaining. All of a sudden, today, after 3 hours, barely used (like, 10 minutes) the battery is at 50%. I haven't turned on or downloaded any new apps. Nothing has changed since I bought it, especially since yesterday, when the battery was perfect. Nothing abnormal on my running apps list, battery usage is most with 'screen on', but that was only 10 minutes. Any suggestions?