So I currently have my X in an outterbox commuter case with a SPG Crystal Clear screen protector. I want to keep it for another year. I have dropped it a few times. I have thought about getting an oem extended battery. Whichevee battery is the smallest? I know an extended battery will not fit with an outterbox. Will an extended battery fit with the kraken case? Is it a good case? I think I like the added protection of it over the commuter. Anybody have pics or advise?