Thanks all of you for all the sugestions I read and take in cosideration every single point that you make.

Tom did you have a charger for those A123 ? and how you chequed those batteries at the field ? also the is a quick charger for the field ? By the way I am converter my Futaba 9C to a 2.4 system I really don't like the spectrum radio and I believe the is a waste of money when i just buy the Futaba by 2 years ago. Thats on response to Pat since he asked if i was used a 2.4 system

Thanks.