Relay? Really!
http://www.ebay.com/itm/DC-12V-200A-Relay-4-Pin-For-Car-Auto-Heavy-Duty-Install-Amp-Chargeover-/272145278288?hash=item3f5d1f6550:g:nvQAAOSwezVWzqCq
Forum Discussion
Color me skeptical, but I think that thing would melt into a puddle after not too much time handling 200 amps. The connections look like 1/4-20 (judging by the .250 quick connect terminals).
Maybe Chinese amps are smaller than American amps.
Maybe Chinese amps are smaller than American amps.
