still having charging problems ran batteries all the way down put on charger the charge lite came on right away but only stayed on for 1 or 2 min and teh plane will run for about 30 - 45 secs. any ideas both planes are about 3 month old. is it time to get new planes or im i missing something i got fresh batteries in tx's and cleaned charging contacts

p.s. has anybody flown the skywinder from air hogs or know of a thread on them.

thanks
dizzy