Thanks John, good idea, checking ebay slipped my mind. Just a question though, I want to be able to use this with my 26Ah battery, not mains power. Could I say purchase this...
http://www.ebay.com/itm/AC-Power-Ada...item3cc9dfa107
Then rather than using the mains power cord, find a cord that plugs into this and then to my battery? Would that work?