Had my note for about 8months and I was extremely happy with it until I updated to kitkat. Prior to kitkat I had no problem gaming, texting, pictures, and calls all day without a charge. After update im out of juice before noon with less activity than before. Im now using power saver, turning off wifi, and bluetooth just to get a little longer out of my battery so I dont miss a call before I get back home. Before I could game while I charged and it would still charge the phone very quikly using the charger that came with it. Now as I looked through these forums with my screen turned all the way down and nothing else going on with phone my charge has stayed at 12% for the last half hour. Yesterday I had to turn the phone off to get a full charge in a reasonable timeframe. Fix whatever the battery drain is. I am extremely disappointed to find out you pushed kitkat with a known issue that's this bad. If it helps android system is now using as much power as the screen 17% each. Wifi is at 11%, android os is 8%, and the game I play is at 5%. My game used the be the only thing more than a percentage or two except the screen.