Coming from a DX2 and then a DX / before,both with the 1930mahr motorola ext life battery...I can say battery life isnt even close in my case....I must have a problem with my battery or something im doing is wrong because mine drains so fast it makes your head spin.I am not new to android,I had an OG droid since early 2010..so im familiar with the battery saving tips..I keep bluetooth off,gps off,screen off auto and as dim as the slider bar will go..screen off in 30 seconds,data widget,turning off data when im not using it,(but am using music player),smart actions set to shut data with screen off,3g only when on mobile data,and i keep wifi off when im not in my house,so it doesnt wfi search...im lucky to get 8 hrs out of moderate use...with the screen taking about 37% of the battery...I could go all day on my dx and dx2,with moderate use,and listen to the music over 3g or my music on my sd car,and not shut 3g off ever...I will say since the update,it is slightly better,but still not even close to what im confortable with,when i go out to someones house i need to make sure i have both car and home chargers,its a real pain,and i find myself not using my device as much as id like too,to save the battery,when makes me wonder why i bothered upgrading to somehing i cant use when i want too...i never carried chargers before,ever,always had a fully charged spare battery in my wallet,in the middle of my cash,and rarley needed it...btw my Razr was bought on 11/11/11 so the battery isnt going to get any better at this point.