This last week my van has been turning over very slowly in the cooler conditions we have been having. So after trawling the Internet I've managed to find a Bosch s4 battery for 53.50 delivered to my door.
The site is http://www.suttonautofactors.co.uk/car-batteries.php
Just thought I'd post it up on here as I'm sure other folk will be needing new battery's for winter and to be honest I don't think you will find cheaper elsewhere especially for bosch.