Battery sorted
Old battery in the bin - new one working fine. Acording to my mulimeter 4 of the six cells were dead (or showing very little voltage) the other two showed some sign of health.
Paid £50 for a new pack but have ordered some new cells at £10 which I will ntry to pop into the old pack which actually came apart quite easily. I'll let you know how that goes on.
Regards
Exeng