I am trying to find a battery charger that will charge an extended battery or standard battery. I ordered one that had the dock for the phone and a battery charger on the back. The dock worked fine but the battery charger would not charge either battery. They sent me a replacement but it didn't work either. I have tried every configuration and it still does not charge the external battery. It is supposed to be for the Bionic but it will not work. I know Verizon has one but I am not sure if it will charge an extended battery; the slot for the battery may not be big enough. Has anyone bought a battery charger that works?