I think these are similar to what Tagyak uses to connect his battery to the charger.
http://www.hopkinstowingsolutions.co...extension.html
You cut the wires in half and use one side to connect to your battery and the other side to the FF using simple auto wire connectors on the cut ends. The Sears charger
http://www.sears.com/shc/s/p_10153_1...&blockType=G17 has a connector that should connect right to one end (make sure you get the male/female connector polarity correct). Leaving these connectors attached to the tabs on your battery will reduce wear and tear on them too. You can easily use the small alligator clips that come with other chargers on them too.