I hate the idea of "babying" my phone. I take it off the charge at about 7am and (want to) plug it back in around midnight. In between, I want it automatically to look for a wi-fi network I can use, and if there isn't one, automatically switch to 4G. I want my e-mails to push to me as soon as they come in. I want my bluetooth to be on, so when I get in my car it automatically connects to the handsfree system. I want the screen to be able to be on for about 6 hours at at least 75% brightness in those hours. I want notifications from my various news apps. I don't want to spend my day digging deeper to close my apps. By the end of the day, I would like about 15% left on my phone, so I am not in the "super energy saver mode".
So far, I haven't found a phone that can handle my needs. I have tried the iPhone 4, the Galaxy S3, the Galaxy S4 and now the LG G3. The G3 almost gets me there, so I am encouraged by the progress. Maybe L gets me that last push of energy efficiency I need, or maybe the eventual G4 will bump the battery an extra 200mAh that I need.
Frankly, I find it a bit silly that no one has cracked this nut yet. Not sure why any cel phone manufacturer hasn't made a flagship phone for all carriers that carries a 5 inch screen but also packs a 3200mAh battery. I don't need my phone to be thinner than the wing of a hummingbird. Heck, Samsung made a cel phone with a full fledged camera sticking out the back but leaves the big battery options to after market sellers.