Smo0,

Can you explain a bit more as to what happened when you seemed to lose communication. How brief was the break, I assume that it was long enough for you to put some control inputs in that did not seem to get responded to.

As Alan said, the Spektrum come with quite generous batteries, both Tx and Rx.

BTW Alan, glad yours works OK, just about to put one into my Precision Aerobatics 30% Edge 540.

Regards

Terry