so I am looking for an extended battery for my phone because myn sucks. Yes I've tried all the apps to help save battery life, but they all suck as well. Is the actual battery itself bigger than the normal battery? The back of my battery says BH5X, I'm seeing other batteries labeled as BH6X and they are being called the enxtended battery. I'm also seeing extended batteries as something completely new that looks a bit more bulkier and it has its own cover and such. Which is right or better or whatever. I would prefer an extended battery that uses the same battery door as the default droid x,but if the other ones are signifacntly better than I would seetle for those as well.