Look at the bottom of the 1st page -
http://media.hyperion.hk/dn/eos/EOS-...2-MAN-EN46.pdf
This has been discussed on more than one forum. You'll only see 160watts per port using a PS with less than 14.5+v, not 180watts per port. There is some component internally in the charger that has to have the higher voltage to enable full power, its not a matter of watts.
Was discussed in here -
http://www.rcgroups.com/forums/showt...highlight=duo3