HV-20 coupler avaialable?

[phally]

Hey guys

I am looking to find out is there a battery coupler avaialble for the HV-20

am I am not home but does this canon couple work? the canon DR-400 http://images.channeladvisor.com/Sell/SSProfiles/22001023/Images/3/CANON_DR-400_2.jpg

thanks