Instruction manual
EN
Firebird Delta Ray
4
Applyastripofhookand
looptape(included)tothe
backofthebattery
Flashing(Charging)
Solid(Charged)
1 hour
Charging the Flight Battery
CAUTION: When connecting the battery to the
batterycharger,makesuretheconnectorsare
alignedasshown.Failuretoconnectthebattery
properly could cause the terminals to short and
result in fire, personal injury and/or property
damage.
Charger Specifications
• Inputpower:10–14V
• Maxoutputvoltage:8.4V
• Fixedchargecurrent:1.5A
• Balancesandcharges2SLi-Pocellswitha
minimumcapacityof1300mAh
Thischargermaybeconnectedtoa1.5AACPower
Supply(soldseparately).RefertotheOptionalParts
List.
Remove the battery cover, install the four included
batteries(notingproperpolarity)andreinstallthe
battery cover.
Low Battery Alarm
Whenthebatteryvoltagedropsbelow4.7volts,
analarmsoundsandthevoltageLEDsash.The
batteries must be replaced immediately. If this
happenswhileying,landyouraircraftassoonand
as safely as possible.
WARNING:
Donotpickupthetransmitterby
theantenna.Donotalterorputweightonthe
antenna.Damagetoantennapartscandecrease
transmittersignalstrength,whichcanresultin
loss of model control, injury or property damage.
Formoreinformationonthetransmitter,gotowww.horizonhobby.
com/products/SPMR4400andclickonthesupporttabforthe
SpektrumDX4etodownloadtheinstructionmanual.
DX4e Transmitter
Elevator/
Steering(air)
Throttle/
Steering(ground)
Throttle Trim
PanicRecovery
Button
SAFEMode
Switch
SteeringTrim
(ground)
PowerSwitch
SteeringTrim
(air)
Elevator
Trim
Mode2shown
CentertheTrimsonyourRTFDX4ebeforeight.