On iPhone 6 battery life (Scott Stein):

In the quest to create a super-thin iPhone, maybe Apple should have thought about a thicker iPhone with better battery life instead. Apple’s claims are about an hour more Wi-Fi and LTE Web browsing, an hour more video playback, 4 hours more talk time, and 10 hours more audio playback than the iPhone 5S. Our CNET video-loop battery test, which tests playback of a CNET video with Airplane mode on and screen set to half brightness, lasted 10 hours and 38 minutes, versus 11 hours on the iPhone 5S (running iOS 7). We’ll be running that test a few more times, so stay tuned for a final battery score. My casual use, doing downloads, heavy Web browsing, endless social media checks, photos, video streaming, and all the stuff I normally do on my iPhone, showed the same type of battery drain I’ve gotten used to on the iPhone 5S. It’s enough to hang in for a chunk of the day, but it’s not the all-day-plus battery life I wanted on a new iPhone.