Horizon Hobby Blade 150 FX RTF Manuel D'utilisation page 6

Installing the Flight Battery
1. Lower the throttle stick to the lowest position.
2. Power ON the transmitter.
3. Center all trims. The trims are centered when you hear a
longer tone while pressing the trim button. Move the trim in
both directions until you hear the longer tone.
4. The throttle cut switch on the transmitter and the calibration
switch on the top of the helicopter should both be in the red
dot position before connecting the battery to the helicopter.
5. Rotate the lock on the bottom of the helicopter to release the
battery tray. Open the battery tray. Do not attempt to open
the battery tray beyond 90 degrees.
6. Install the flight battery using the hook and loop strap.
7. Secure the balance port lead in the cradle next to the battery.
8. Insert the battery power lead into the power port of the
aircraft, noting proper polarity.
CAUTION: Connecting the battery to the flight control
board with reversed polarity will cause damage to the
control board, the battery or both. Damage caused by
incorrectly connecting the battery is not covered under
warranty.
EN
9. Close the battery tray. Rotate the canopy latch to secure the
battery tray closed.
If you experience problems during initialization, refer to the
Troubleshooting Guide at the back of the manual.
CAUTION: Always disconnect the Li-Po battery from the
aircraft when not flying to avoid over-discharging the
battery. Batteries discharged to a voltage lower than the lowest
approved voltage may become damaged, resulting in loss of
performance and potential fire when batteries are charged.
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