You don't need the 4010. The numbers on icharger state the amps then cells available to charge. Mine is 40 amps up to 10 cell lipos. And duo of course meaning two channels. I can charge 40 amps and up to 10 cell lipos on both sides. Go to progressiverc.com and look at their stuff. You can certainly run off a car battery with these as well. Lots of the rotor and fixed wing guys do it at the field. YouTube is very helpful for that particular setup.