Easy to say thats what I should have done when you know what your doing to start with though, I've just put the boy to bed so once the missus gets in I'll go out and try that. I did do that before but could not really notice a difference in any to be honest but I'll try again and pay a bit more attention this time

No worries mate, sorry for being arsey it was just starting to p**s me off. Everyone will be glad to know it's problem solved. I never replaced the conector properly one one of the packs, didn't click it right in, I'm going to blame the fact that I was trying to stop my 2 year old taking the hammer to car and insisting that he could fix it at the time