Prepare yourself to carry a extra battery or two. If you don't want to turn off all the antennae and use the phone like it was meant to be then carry and extra battery.
You will get 5-6 hours if you are lucky. Read some newspapers, stream audio, etc. and the battery is dead before you know it.
hmmm...thats gotta be pretty consitent use.
I think a lot of people dont realize that under accounts/sync in settings...that the new software has google backup EVERYTHING on your phone to their server.
Books
music
apps and data
settings
google+
gmail
contacts
calendar
google photos
wallet (if you have it)
I turned a lot of those off. Along with notifications for some apps (facebook being a main one). I have a corp email account as well...refresh set to never (if I want to check work email...I open it).
Turn off beam, keep gps off if you arent using it, use wifi in area where you have a good connection to one. Use CDMA mode when there is no need for 4g.
With those settings I think I can get about 10 hours out of a normal day.
My normal day is
1. Wake up to alarm
2. check DF, rootzwiki, fb and any other notifications if I have mail
3. Put pandora on while on the way to work (~30 minutes drive)
4. dont use my phone during work much (occasionally check forums, on lunch browse some)
5. Workout at lunch (stream pandora for about a hour)
6. Check forums some between lunch and time to get off.
7. Listen to pandora on the way home (~30 minutes drive.)
8. Get home...connect wifi...plug into charger sometimes.
occasionally I get a call...I do some texting/gtalk chat, etc throughout the day periodically (really depends on how much my friends have to say lol)
I have setcpu installed with screen off profile set to 350 min / 350 max screen off. Interacive gov.
This use gets me about 10-13 hours depending on pandora use really.
People getting 5 hours on a charge are sitting there on their phones the entire time pretty much. OR...they have an issue with settings/software/battery.
Also, to my understanding battery life is a kernel issue at the moment. So...this should all be corrected eventually by google or devs.
Thats my 2 cents.