So my curiosity has been awakened and I found out the charger then took the battery from its storage place in a polystyrene box in my garage, the charge LED was on the lowest level so I plugged it in and switched on, it seemed to take a while so I left it overnight. Next morning full power indicated by the LEDs and using my Fluke meter I read 29,2 Volts at the battery terminals.
Now keen to put it to the test I atempted to blow the tyres up, but unfortunately the valve stem of the front wheel is broken, so I ordered a new anti-puncture tyre with tube from E-bay, I need to spend some time cleaning the bike up while I await delivery