Amazon.com: Genuine Motorola Droid P323 Battery Charger System: Electronics Amazon.com: Motorola BP6X A855 Droid OEM 1300mah Standard Battery: Cell Phones & Service Anyone use these 2 items from Amazon? I'd like to get a second battery and an external charger, this seems like a cheap solution while keeping OEM parts. The only thing I'm really questioning is the voltage output of the external charger to the battery. Any way to tell if it will charger correctly? If you know the answer, please provide reasoning.