Man you guys are getting way better than me. I use only 4g all day and use chrome a lot. It is over 15% and screen about 4 hours when battery around 10%. I need to look into a different browser.
I too use 4G all day and get about 5½-6 hers if screen time before it hits 15%. Chrome is the only browser I use and it's usually at around 5% of consumed battery.
I've gotten up to almost 5 days without even looking at my charger, but usually it is around 3-3.5 hours. When I got my phone it wasn't quite that good but with the update to task killer where it kills tasks automatically every 30 min (or less often) and some careful tweaking on my smartActions app it's not that hard to get pretty amazing battery life out of it.
Google Play Music kills battery. Badly. I hate it and that's why I had it disabled on my OG RAZR and used Motorola's player.
Yeah the Play Music app can be disabled but they took out the Motorola Music player for some reason. You'll have to download a new player from the Play Store