Cheers Nik, much appreciated

I must have dreamt that somewhere way back! No idea where the thought came from. Good to know its a simple, safe swap.

I assume its the usual fill it with solution, reseal, fit on bike and its good to go or would you recommend a charge before hand? I`ll need to get hold of a low amp charger if its needed - any good recommendations on a decent charger that fits the bill? May as well while I'm hammering my credit card this month anyway

Andy