Anyone ever use the dual impact charger found here. http://www.bhphotovideo.com/bnh/controller/home?O=details_accessories&A=details&Q=&sku=472876&is=REG&addedTroughValue=465330_REG&addedTroughType=accessory_detail

I didn't know chargers could be found this economical.

I have this one which is $20 more. It works as advertised, but NP-F970's take hours to charge.
http://www.bhphotovideo.com/bnh/controller/home?ci=1&sb=ps&pn=1&sq=desc&InitialSearch=yes&O=productlist.jsp&A=search&Q=*&bhs=t&shs=bcv500&image.x=0&image.y=0