My Galaxy S3 Battery Life Sucks Please Help! 15% After Only 7 Hours. I’ve been having this same problem sense I got my phone about 2 months ago but now I’m finally just tired of it! My phone is rooted, using the stock ROM. What I do to help battery life: - Every morning I hold the home button and kill multitasking and kill all running aps in the background then I open autokill which automatically kills running apps in the background that are not needed. - I have power saving enabled - Easy Battery Saver running After 7 hours of use I’m already at 15% and through out the day I barley use my phone. Its like this just about everyday. I use my phone about an hour of the entire day of web surfing and Facebook usage etc. The rest of the day I’m only texting and maybe taking 3 or 4 phone calls that last 10 mins. How much battery could that possibly take? A flip phone can do that and last 3 days.. I used my iPhone 4S much more during the day then I do the galaxy S3 because the S3 has terrible battery life. On my iPhone I would have about 22% after everyday of using it for 11 hours down time = sleep and 4 hours of usage = texting, , phone calls, web surfing, games etc. I don’t play games or watch movies on my S3. Only texting, instagram, facebook, websurfing which is about an hour a day usage. Also a couple minutes of GPS usage on some days. What can I do to fix this? I don’t want a bigger battery that will make my phone any thicker. I have pictures below showing usage through out the day and usage under battery. Please help! Thanks!