I bought one of these for my stepson
http://www.hobbyking.com/hobbyking/s...w/_accessories
works great and balance charges very good.
there is a guy on ebay that sells them new as well from hertfordshire called nilesinstall at £30.
here it is
http://cgi.ebay.co.uk/Turnigy-Accuce...item20b0064e56
might be of some use