ok, now have a new battery. its funny, looking in the galaxy engine bay I was CONVINCED that the battery in there was bigger than a standard car battery, so when I went to my local motor factors, told 'em what I wanted, they produced a battery according to there bible - and I said "nah, thats much too small, it currently has a bigger one" - so they trotted out varying sizes of battery, and I plumpled for one that I thought was right - a 95Ah battery - as it turned out (not the 70Ah I had asked for) ...of course, getting the battery home, and taking the old one out, I now realise its EXACTLY the same size as a normal car battery! ;) fortunately, the plate for moutning the battery fits the new one exactly - so I dumped it in. haven't tried measuring the current - perhaps will give that a go. cheers for the advice Graham