Well, I think you might be missing one thing, when you see a C rating on a battery, that is simply referring to how much current it's capable of supplying, but that does NOT determine what will be drawn continuously. The MOTOR is what draws current, & how much it can draw will determine the load on the battery & the connector, & most motors, once past the peak load(from a dead stop), will usually only draw in the neighborhood of 25-30 amps at most. And much like the burst C rating on a battery, a Deans connector can handle a LOT of current if it's only in a burst.....