Originally Posted by gregaf3
I would put a relay in the circuit. That is 4 amps cold on the bench, how many amps is it hot?
Not just amps - but a toggle simply shouldn't be expected to handle the arc of the connect and disconnect - over time the toggle's contacts will burnish and carbonize... the reduced risk of failure on the trail (and we all know stuff somehow knows exactly when to fail causing the most problems) justifies the cost of the relay.
J Wm Bishop EA, ASADE
The wagon should, of course, be as light as possible, but strength should not be sacrificed to lightness, for on any but the regularly traveled roads, the wagon will get many a hard knock