Some says they get 20+ hours while some say they only get like 8+ hours. I am trying to figure out if my battery is OK, but these numbers can't really tell much because it all depends on how you configure, use your phone. I have bluetooth off, wifi off, I am at where 4g supported but sometimes it goes to 3g or even to 1x then toggle back onto 4g in few sec to a min. I have display set to auto, I have 3 gmail accounts setup for sync, weatherbug without GPS, and its widget. I debloated using TBH App. 4G is enabled. Running apps are very few (Kakaotalk, facebook, juicedefender, TapTap4airmail(cant get rid of it from running), Skype(never signed in), weatherbug elite and phone defaults..). I charged full and unplugged and used very very heavily just to test out how much time i could pull out from it til it deads. The result was very disappointing, 3hours 17min on battery and the battery is at 15%.... cell standby - 3:17 32% display - 2:11 28% speedtest - 13% phoneidle - 11% voicecall - 8% maps - 4% ( i dont know what is using this i have never turned it on wtf) android os - 4% juicedefender - 2% wifi - 2% android system - 2% my battery is at like 4th cycle, and i honestly dont see any improvement each cycle. When i got this phone first time, it had about 50% battery , and it died in like 4 hrs. Even i was in a very heavy use, and indeed i did few speedtests (about 10 just to kill the battery faster), I feel its sucking battery too much. well as of writing this, 3:24 and 10% left. Do you think i have a defect? Has anyone tried the similar test? (very heavy use) and have a comparable result?