Don't have the 20 ohm 5W resistor or a single cell holder, so I have put 4 cells into an led flashlight and let it burn. Maybe not the best option, but I want to do something now.
You can improvise some. Flashlight can work.
The LED flashlight was taking far too long - not enough current. So I wired my Opec dummy load to a 6-cell AA holder. The dummy load can handle 20W continuous. I'll monitor the voltage on the pack with a DMM until it reaches about 1.0V, then remove batteries and try to run them through the Break-In cycle on the MH-C9000.
My reference to 1V is for the entire pack of 6 batteries in series. I am not set up to run individual batteries down to 0V. I could just as easily let the pack run down to 0V.
I would pull them to zero to reform them. One volt per cell is not going to do it.