E-flite Brio 10 ARF - Manual (Page 50)

 2. Install the battery in the fuselage using the
remaining piece of hook and loop material. The
battery location may vary but we anticipate that
it will need to be mounted at the farthest back
location on the battery tray in order to achieve
the correct Center of Gravity.
Hint: It is recommended you may use a piece of
hook and loop strapping around the battery to
help secure it in position.
 3. Install the canopy hatch by sliding it under the
cowling, then snapping it down onto the fuselage.
A magnet holds the aft end of the hatch in
position during flight.
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