Before trying to install the battery into the quadcopter
make sure that the foam that covers the T-deans
connector is removed. If not done this way round the
connection will most probably not be good and the
quadcopter may either fail to start or fail during flight.
Once the foam is removed make sure that the T-deans
connecter is free of glue or other substances that could
have an impact on the free flow of current between the
battery and the quadcopter.
CRADLE aka GIMBAL
The “gimbal” is not a true gravity gimbal as it can, in
theory at least, be adjusted for angle of view which can
be either up/down or left/right. (
In practice it has been
found that the mechanism does not work properly,
using too much power, getting hot and freezing up.
This causes the quadcopter to fall out of the sky with
uwanted result
)