Regarding the posting from Ray he said I was lucky to have not lost the whole car. The AA man said much the same thing.It took the AA man two minutes to identify the problem .The battery was still hot and he said there was possibly a 300 amp direct short current flow to earth.
Euro Car Parts have now refunded me the £99 pounds for selling me the wrong battery in the first place.
The "correct" Yuasa battery is now fitted on the ply and everyting is back to normal.Thanks for everyones suggestions.