3rd party e-m5 battery that works with Olympus charger?

A friend of mine who works at a nearby camera shop came through for me, and is holding a black e-m5 for me. I know some of you have gotten the 3rd party batteries that take a different charger. But, has anyone found a battery that works with the factory charger, preferably in the US?

Thanks,
Bill

--
http://www.bhphotoaday.blogspot.com
http://www.pbase.com/billhuegerich