Ok the AA Guy hinted that a faulty leisure battery charging system could have been the issue as it was only one afternoon …a matter of less than 6 hours that the starter battery died . It was not a period of days camping and the van had had a decent 80 mile journey the previous day . .the vans ability to switch off lights etc from open doors was functioning correctly , He tested the battery as it was charging from the alternator and could see instead of taking a charge it was losing power … so I will simply conclude now that the starter battery had reached the end of its useful life and was incapable of holding a charge even when being given power from the alternator .. it was around 7 years old .. so I guess that’s about as long as an AGM battery will last . … So I've learnt
my system will only take care of my leisure battery .
I need to change things up if I want to charge my starter battery on 240v hook up or solar.
This is what should have been clearly explained to me when I had the system fitted . I live and learn .
If I could get at the CTEK ( wherever it is !!!) I could set about modifying the set up however I don’t feel inclined to start ripping the cab to bits right now so will settle for things as they are for the time being .
I am surprised that just the opening of doors and the alarm system would be enough to drain the starter battery in a couple of days to be honest .
Im going to do my research properly now and work out what my requirements are from here on .
Thanks for the help
