Thank you Richard and Luddite for the advice...once we get home and Autumn moves toward winter i will undertake some battery tests when its a little colder with the AVO meter. We are presently just East of Bergerac on holiday, temps are 27 to 30 C but due to rise to 38 next week... The battery is turning the engine ok, but to my ears is not as "crisp" as it used to be... We always carry a back up small jump battery just in case, which is charged ready to go.
I am now a bit of a dinosaur when it comes to 12v automotive batteries, so any advice appreciated and i will look into yr suggested battery manufacturer Richard...
dave