The Zed has been rested up for nearly 2 months now I think, and with the volt meter dropping below 12V, I thought I'd better get a trickle charger in as other than a wee turn over and warm up drive if the ice buggers off, it's going to be sitting for all of January when I'm in Germany.
Found this one on amazon: http://www.amazon.co.uk/Ctek-CTE-XS800-Battery-Charger-Stage/dp/B000RI2B70 Not as cheap as the one Alex was selling, but it has topped up the battery (took about a day), and has switched over to the maintainence mode now. Nice and compact, and you get clips and eylets that can be screwed on to the terminals if you get some (M8?) nuts.