My Motobatt battery seems to have given up the ghost after only 9 months! It didn't seem to be getting a suitable charge off the bike, so I connected it up to an Oxford Optimiser 900. This seems to maintain the battery at about 12.7v, but when this is back on the bike, it's not even enough charge to turn it over.
I can jump it off something else, or bump start on a slope and it runs fine - it just won't start by it's self.
All seems very odd to me!