I wasn't havin a lend mate, i would seriously buy it as a spare if it was part of my kit. I just can't believe nobody on here could use a spare (if its suitable) at that price. Good luck mate
No, Judyp57 it is an audio/power lead for particular Minelab metal detectors, either an SD series or GP series metal detector. It connects the battery pack to the metal detector control box, it is also known as a 'patch lead'.