Step 1: Create a Weakest Link
Step 2: Find Power Source
Step 3: Note
If you burnt something else instead... then either you failed to find the lowest wire, another wire got damaged and became weaker than this one, or some components were damaged or defective.
I made this tutorial strictly in the interest of lowering cost in a battery bank style project. I think it's so cool to have fuse on every cell like the tesla, but I don't want to buy so many fuse, so rate your wire, and pull some strings to make a weak link.（be sure to secure the positive wire to non conductive place, so if cheap fuse burn, other things don't short from wire falling.）