SB50 connector,
www.powerwerx.com $4
Two megalugs (50 cents each) from spectro wire and cable $1
www.spectrowireandcable.com
One foot of red #6 welding cable, $1.5 per foot,
and one foot of black #6 welding cable $3
http://www.missouriwindandsolar.com
Your materials will cost $8, but you must add shipping.
What will eat your budget is the crimper,
around $100, unless you settle for the hammer
crimper from
http://www.missouriwindandsolar.com
The battery wire furnished in the KOP this year was
very good, the best that FIRST has ever served up,
but welding cable has finer stranding and is a little
more limp as a result.