Says its in stock here -

http://www3.towerhobbies.com/cgi-bin...&I=LXZMX6&P=FR


Its a 50watt charger and will have no probs charging 5amps on a 5000mah 2S lipo. You're paying a lot for that level of charger though (name). You can get the same 50watts, 5amps, 2S capability from a Thunder AC6 for $55. The Hyperion 0606i is a little less $$ and offers 6amps, but the ame 50watts if you're more comfortable with a name brand charger.

http://www.amainhobbies.com/product_...rger-6S-6A-50W