I have here a Core Rc charger with dual input. It will take a 12v supply, but also accepts 240v via the supplied cable/plug as it has a built in power converter.
This is almost new. Its been used just to charge a few packs on the bench and is therefore fully working and looks like new. It also comes in original packaging complete with all the cables and mains power lead.
Here's a link to the charger for more information about its capabilities
http://www.racing-cars.com/pp/Manufa..._RC/CR161.html
These retail at £59.99, SOLD