Jester,
RCAirFlr has you on the right track.
Use Ohms Law (r=e/i) and you can custom build any load you want.
Remember, two equal resistors in parallel give you 1/2 the resistance and twice the wattage.
Two 20 ohm 5 watt resistors give you 10 ohms and can handle 10 watts.
Power or watts = e * i
If they are only plugged in for a few seconds you can use lower wattage resistors.
My meter uses the dual banana plugs sold by Radio Shack and others.
http://www.radioshack.com/product/in...ductId=2509628
They are pricey at RS and can be had cheaper other places.
Since they are stackable you can easily check the loaded and non-loaded voltage.
Just put your resistors accross the terminals to load the battery.
If you need any more information feel free to ask.
Good luck and have fun,
KW_Counter