not sure I agree... the gold plating is what helps minimize IR... if you have too much corrosion, then the IR can drastically shoot up and consequently diminish efficiency in the form of excessive heat... it will eventually turn your ESC into a ticking time bomb where the excessive heat may cause the ESC to go up in flames.... this is more common with poor solder joints, but just can easily happen with poor connectivity on corroded connectors
The gold plating is not actually gold. Gold is not strong enough to withstand the kind of scrubbing that electrical plugs experience when repeatedly connected and disconnected. (well...maybe a very low-karat gold alloy, like 8K or lower, at which point the benefit of having gold in the alloy is purely cosmetic.) I don't know the exact composition of the coating, but I'm pretty sure the gold color comes from manganese, not actual gold -- or at least not enough actual gold to significantly improve electrical conductivity.
Once again, the parts of the plugs that actually scrub against each other when connected and disconnected will not develop a significant amount of tarnish, because the tarnish will be scrubbed off. Tarnish that isn't there can't contribute to electrical resistance -- however, dust and dirt certainly can, but that's easily fixed by wiping off the contacting surfaces with a Q-Tip soaked in your favorite cleaning agent. (I prefer Goof Off because it dissolves old oil on contact.)
If the connectors are actually corroded
instead of tarnished, i.e. the surface has pits in it where so much metal has oxidized and fallen off that there are holes left behind, then yes you should replace the connectors. I've never personally seen RC power connectors that bad -- not least because the metal underneath the shiny gold-colored plating is almost always brass, and brass only corrodes like that in the presence of chlorine.
(Last edited by fyrstormer : 3.20.17 at 12:18 pm)
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