I have both the extended battery and standard battery. If I could do it over again, I would either buy an extra standard battery with an external charger, or just an extra standard battery. The extended is not really worth carrying around for me, because it uses a different battery door. Some say that you can use the verizon gel case with it, which I use with my standard battery, or you can use the standard battery door with the extended battery, but it's not perfect and it bothers me. It's annoying to have to carry the extra battery door for when I need the extra battery.