Just checked my battery again with the OBDeleven and it shows a reading of 11.3v and my stop/start has worked once in 2 or 3 months. I'm going on a long drive Saturday so I'm not sure if that will be a good thing for it or if I should be worried in case it doesn't start when coming back.
Might get a new battery next week for piece of mind? Don't think I can buy Pro activation for the OBD11, get a new, battery, and code it, all on Saturday morning.
Edit// Also, what is a good replacement battery?. It's a weekend car as I have a work van. AGM battery? Is one from Halford ok? Prob one of their own brand ones?. Could pick one of them up off the shelf instantly