So yesterday I exchanged my space grey iPhone 6 for silver, I drained the battery to dead, and charged overnight. Today was a great test for me because I had a good amount of use at work as well as leisurely use. I've been on various social networks for various periods of time, I've surfed Reddit, played some games, let my son play his games, watch videos on YouTube, take some notes, a couple pictures/video, used a couple apps, casual safari browsing, took a couple calls, plenty of messaging. Not once during the day did I halt usage due to concern of battery life, I just went on doing whatever I wanted to do. Here are my results (so far), my phone has not touched a charger since 8am or so, it's now 9:19pm and I have 20% left. I am really happy with the outcome, it's very comforting because the level of use today was average for me if not more so. Yay iPhone 6 battery life!