RE: How to convert an ATX power supply to rc use
I'd just find a good dummy load that is gona pull your max load on the charger (test for verification with a shunt if it's over what your ammeter is capable of, and just see what the voltage comes out to be, if it's below 11 I'd put in another resistor =) If you don't want to go to all of that, probably just put in another one =) make sure they are in parallel, because series actually adds the resistive capacities together and would go the opposite way that you are looking for