16 hours for me too. seems fine, in fact excellent coming from a blackberry 9900.
i'm sure soon enough extended batteries will start selling that you can try.
16hrs is fantastic I could barely get 6hrs with my HTC EVO 4G(Original) and that's with extended batteries! When I go to New York I have to switch out batteries at least once a day and charge them up again it's really a hassle, so really hoping this phone will offer awesome battery life If i could get 16hrs just walking around, using AIM, twitter and Camera that would be awesome lol.
From what I've read about these large 4G/LTE phones, 16 hours of battery is hardly a "problem". More like "top of the heap". I'll be more than happy if my Verizon version can do that with moderate browsing/app use.
I always have my charger too! I am always on the go. My office, home, friends house and so on. So I can see why you would carry one. I do the same thing.
Also what mightb e 16 hours for him may only be 10 hours for me! So it will vary. I know with the HTC One X I would get about a days worth of battery if medium use. Emails (3 accounts), SMS and light data use with the internet. So I might get a little better battery here but not to much more is my guess.
Either way after a few charges I always see better life with the battery with the my past phones. (Look at the sig for the list!) So I am still excites to get my phone...Well when I finally get my phone!
16 hours is great. I cant wait until they come out with the extended batteries. I use my phone heavily, and being a newbie to Android I probably wont know what Im doing, deaining the battery even faster. Lol. I always keep my charger on me, even for my iPad, yes. 10 hours of iPad is not enough for me. Lol. Been using this thing since 10:30 this morning. Its 2:30 now and Im at 54%. What can I say. I'm power hungry