BIG Wires for Power Management
Some sumo robot motors can draw very high amperes. I prefer using silicon high stranded cables.
For soldering thick cables, you may use flux. Flux is some liquid made from chemichals and resin.
Where can I buy silicon wires?
From Rc shop’s or
http://www.hobbyking.com/hobbyking/store/uh_listCategoriesAndProducts.asp?idCategory=466
AWG – American Wire Gauge: It’s some measurement gauge for electric wires.