Stated this in another thread, but here is my input. I returned the RAZR MAXX HD and waited for the Nokia 928 to come out. Just for comparison:
10 hour hike in low reception zone and using GPS tracking program Runtastic and listening to music beforehand in car using RAZR and it was dead in 6 hours
10 hour hike in low reception zone and using GPS tracking program Runtastic and listening to music beforehand in car using NOKIA and it had 50% LEFT.
Your mileage may vary
. Somehow I got a great battery in my unit. I do turn off a lot of the background processes. But I'd do that in Android too to no avail. This is the only phone for my lifestyle now. No more Samsung or HTC for me.