Been using the battery dock to charge a second standard battery. I always let it charge till the light turns green. The first three times I have used a battery from the dock yielded a 93%, 87%, and a 97% when I put the battery in the phone. Does this sound normal? I bought a 3rd party battery charger for my old Blackberry awhile back and it would always show 100% when I put it in the phone. Seems weird to me that this one would show charged on the dock but not be 100% charged when I put it in the phone, especially from an OEM accessory.