EN
Firebird Delta Ray
4
Apply a strip of hook and
loop tape (included) to the
back of the battery
Flashing (Charging)
Solid (Charged)
1 hour
Charging the Flight Battery
CAUTION:
When connecting the battery to the
battery charger, make sure the connectors are
aligned as shown. Failure to connect the battery
properly could cause the terminals to short and
result in fire, personal injury and/or property
damage.
Charger Specifications
• Input power: 10–14V
• Max output voltage: 8.4V
• Fixed charge current: 1.5A
• Balances and charges 2S Li-Po cells with a
minimum capacity of 1300mAh
This charger may be connected to a 1.5A AC Power
Supply (sold separately). Refer to the Optional Parts
List.
Remove the battery cover, install the four included
batteries (noting proper polarity) and reinstall the
battery cover.
Low Battery Alarm
When the battery voltage drops below 4.7 volts,
an alarm sounds and the voltage LEDs flash. The
batteries must be replaced immediately. If this
happens while flying, land your aircraft as soon and
as safely as possible.
WARNING:
Do not pick up the transmitter by
the antenna. Do not alter or put weight on the
antenna. Damage to antenna parts can decrease
transmitter signal strength, which can result in
loss of model control, injury or property damage.
For more information on the transmitter, go to
www.horizonhobby.com/products/SPMR4400 and
click on the support tab for the Spektrum DX4e to
download the instruction manual.
DX4e Transmitter
Elevator/
Steering (air)
Throttle/
Steering (ground)
Throttle Trim
Panic Recovery
Button
SAFE Mode
Switch
Steering Trim
(ground)
Power Switch
Steering Trim
(air)
Elevator
Trim
Mode 2 shown