Alright Chaps . I just wanted to check before I whipped the battery off if unplugging all of that electronic gubbins on top of the battery will cause any negative issues? I can't find a straight answer on Google.

No. Carry on

If it's the same as mine that's just a terminal block

No electronic at all there, only fuses, don't worry about unplugging !!

Undo the 10 mm on clamp,and it all comes off as one!

Cheers guys. This car has far more electronic systems than every other car I've owned. Always best to be careful ?