Battery removal/refitting problem

[dingg]

decided today was the day to put in a new battery - unfortunately when removing the old unit I suspect I have broken a connection, I shall explain :-

at the positive terminal my battery has a main red lead (the big un) and a pair of smaller wires( about 10" long )connected to a common terminal unfortunately this has come adrift from whatever it was connected to - any ideas where these 2 common wires should be connected back to - the only likely place looks to be the bottom of the fuse box and it looks likely that I have pulled the terminal from this when sliding back the battery box. I ve checked in the 'bible' and can't see any reference to these 2 wires

TIA

[dingg]

problem sorted this morning - my fusebox looks to be a bit of a lash up and the paird wires I mentioned was in fact the supply to the board .Unfortunately whoever had repaired the board hadn't made a very good job of it with a dodgy supply line that had a very poor connection on to a nut on the front of the fusebox??
I have rewired the supply back to the as made connection on the back of the box, unfortunately after changing battery,new plugs, and carrying out the above still had no starting - eventually traced to poor connection at fuel pump , once cleaned and made good fired up first time
now time to give it to reeducate the ecu