Very many thanks PizzaGuy. Having read through your paper on Parasitic Drain (both v1 and v3), I was aware of the need to allow time for things to settle down. Perhaps I just didn't wait long enough....? I'll give it another go. At the moment, I have removed the Alarm Siren and also left Fuse 9 removed and am monitoring the state of the battery. Unfortunately, I don't have a full wiring diagram of my car, only the "wonderful" Owner's Handbook. The window washer motor does not work - but the wipers do - and I think I have the dreaded leaking washer bottle reservoir - the "low washer bottle fluid" warning light is on permanently (I have a paper on that written by another forum member) and plan to tackle those issues soon. Meanwhile, any idea what is "chirping" when I re-connect the battery, now that the Alarm Siren is removed?