Making NiMh packs
Hi
When ever I solder my own battery pack I use ordinary household cable those 1.5mm2 cabels that you use for ex. a lamp.
I strip them of the shield protection and flood it with soldering, then rubb the ends of the battery with sandgrinder (I think it's called this) and put on some solderingled. Stacks batteries like I want them and only solder two at time (othervise shortcut).
Just my 2 cents