ladies i am a hopeless case !!!!

the kids have a dareway and i need a new charger for it
the link here is the type of charger i need but i really want a cheaper one ,,, (my dad swears he bought one online for much cheaper just cant remember where )
if any of you could maybe have a nose ? maybe you know exactly what to look for i would be most grateful

Feber 12volt charger
http://www.rechargeonline.co.uk/batteries/chargers/12volt_volt_charger.htm#124

erm... whats the red bit on it?? iv a few 12v chargers kicking about. i seem to collect chargers n cables for everything!

laura the red bit plugs into the batterys attachment which is black ,, male female join thingy x

ah see ones iv got it just one pin thought i coulda helped x

hmmm u can get em for a few quid but not seen 1 with that red thingy before x