Not sure, everything worked perfectly before I parked the car up, it hadnt been run for about 3 month when went to car couple of days ago to get it sorted the battery was completely dead, I used the poles in the engine bay to try to jump it, even with these on when turned the key the interior light went very dim I had the jumps on for about 10 minutes, yesterday I pulled the rear bench up and theres lots of corrosion around the negative post on the battery, however I am assuming that the corrosion has taken some time to appear and would have been there a few months ago too when the car was running fine.
I could recharge in situ, but the car is at father in laws, really dont fancy sitting there for hours on end, bit wary about leaving charger in the car for a long time
I have ordered a fault code reader, so will see whats what when that comes.