Step 2: Disassembly
There are two clips holding the terminal end on the pack, pry them up (Not to hard, you need this piece intact.) I had to use a small flat blade for this step.
Pull the terminals and batteries out. Clip the wires as close to the terminals as possible. I had four packs and only two good batteries. In this case I removed only the bad cell from one and a good cell from another to take its place.