How happy was I when the car fired up!!
After charging the battery for two hours it obviously took enough charge to start the car, I left the engine running for 20 mins to increase the charge further.
More than happy to buy a new battery obviously but I intend to check again at the weekend because the last time I was told I needed a new battery on my Audi it subsequently lasted for a further two years!!
The battery tray on this car is tiny and I can't find another battery with similar dimensions 167, 179, 128 so I will most probably go for a direct replacement Odyssey PC925
So Saturday morning will be the test, thanks to everyone for your input.