Re: HELP...what are these little boxes
Theres a pretty good chance those a circuit breakers. There is also a pretty good chance that removing them will result in a fire if a short should develop in the circuits those wires supply. There purpose is to protect the wire between the battery and wherever they go. Without them a short turns the battery into a very effective arc welder. I suggest you re-think the "removal" concept and simply replace them. They are less than $10 bucks each depending on where you buy them. Various amp ratings are available and they must be selected based (in part) on the wire size in each circuit.