I ran a very short 8 ga cable out of the battery box (+ only):

http://members.cybertrails.com/~ahwahnee/Battery1.JPG

Wire strands soldered for durability:

http://members.cybertrails.com/~ahwahnee/Battery2.JPG

Notched the lip of the lid where the cable exits:

http://members.cybertrails.com/~ahwahnee/Battery3.JPG

That bit of fuel line covers the exposed end:

http://members.cybertrails.com/~ahwahnee/Battery4.JPG

Never used it for for jumping (8 ga is a bit light for that) but very
handy for checking voltage at the battery or connecting a charger
(nearby ground connection is the seat bolt head).

Geo