Safety Matters

Recently, a new club member brought along his trainer for instruction.
After a pre-flight inspection, I asked if the batteries on both, the model
and transmitter had been fully charged.
No battery checker was installed in the model but the transmitter read fully
charged.
About 10/15 minutes into the  flight, I had to take control and recover the
model from an accidentally induced loop by the novice pilot.
However, the model failed to respond to all input controls and was
subsequently lost in the ensuing crash.
The cause of the crash was later established to be the transmitter's
batteries that were completely flat / dead. The moral of the story here is.  
1 ) Make sure that the batteries are charged properly overnight. A quick
couple of hours charge just before flying won't do as you may get the wrong
readings, IE giving the false impression that the batteries are fully charged.
2) Make sure that the connection from the charger to the battery lead is
properly connected and that the charge light is on and stays on.

  Tony Madrugo