I own this phone and purchased the extended battery for it. Mammadillo was inquiring about it, so I said I would give feedback when I got the battery. I actually love it! It's not at all bulky like I thought it might be. It actually feels better and snugger in the hand with the extended battery. It's raised up just a little, no where near how I figured it might look. It does last a long time. I think with the regular battery, you get about 3.7 hours of talk time/usage. With the extended, it's about 7.5 hours of talk/usage. Of course depending on how you use it, will affect it also. I played around with it quite a bit, surfed wallpaper sites, texted, talked. On the regular battery, one or 2 bars would have gone down already, but all 4 bars were still up with this battery after quite awhile of using it. I am glad I purchased the extended battery. It's not bulky like I said at all, just a tad raised in the back, but not by much. Plus also as I said, to me it feels better in my hand. You get a better grip. You definitely get quite a bit of battery time. Glad I made the purchase, and this will be the battery I will use till I get another phone. Anyone thinking about this, get it, you won't regret it!