theres no binding, check everything linkages, rudder rod, main mast swash and spindle tail oiled. Do you think its not my charger, Im using a wall charger and charges it for 15 hours and get 1 1\2 tank[>:] . Anyway I already ordered a 2700 nimh nobs batts(www.hangtimes.com) and super brain 949 at tower. Any comments about this battery and charger would be appreciated thanks. I hope this will solve the problem.