5
SPEKTRUM DX3R PRO USER GUIDE
EN
You can also use optional NiMH 1.2-volt AA
rechargeable batteries (SPM9525), which you can
recharge using the charge jack (not available on all
transmitters) below the transmitter’s on/off switch and
Spektrum’s optional charger (SPM9526).
WARNING:
Charge only rechargeable
batteries. Non-rechargeable batteries may burst
causing injury to persons and/or damage to property,
and they may cause fire. Dry location use only.
ChargIng
(noT avaIlable on all TransmITTers)
Note:
DX3R Pro transmitters with part numbers
that end in E or FR do not have charge jacks.
All Spektrum charge jacks are center pin negative.
Before using a charger, make sure the connector is
center pin negative, you can use a voltmeter for this.
Also, the DX3R PRO uses four cells. When charging,
use a charger designed for four cells (4.8-volt battery
pack).
Charger Pigtail for Transmitter
Spektrum Transmitter Charge Jack Polarity
BLACK TO POSITIVE
BLACK W/WHITE STRIPE TO NEGATIVE
-
+
ChargIng safeTy PreCauTIons
and guIdelInes
Failure to exercise caution while using this product
and comply with the following warnings could result
in product malfunction, electrical issues, excessive
heat, FIRE, and ultimately injury and property damage.
If the transmitter voltage drops below 4.0 volts
or the battery alarm goes off, change the batteries
or recharge them (if using rechargeable batteries)
immediately.
Read all safety precautions and literature prior to use
of this product.
• Never leave battery and charger unattended during
use.
• Never allow minors to charge battery packs without
adult supervision.
• Never attempt to charge dead or damaged batteries.
• Never charge a battery if the cable has been pinched
or shorted.
• Never allow batteries or charger to come into
contact with moisture at any time.
• Never charge batteries in extremely hot or cold
places (recommended between 50–80 degrees
Fahrenheit) or place in direct sunlight.
• Always use only NiMH rechargeable batteries.
Chargers cannot charge batteries such as “heavy
duty,” “alkaline battery,” or “mercury battery.”
• Always properly connect charger and battery.
• Always disconnect the battery and charger after
charging, and let them cool between charges.
• Always inspect the battery before charging.
• Always terminate all processes and contact Horizon
Hobby if the product malfunctions.
• Always make sure you know the specifications of
the battery to be charged or discharged to ensure it
meets the requirement of this charger.
• Always constantly monitor the temperature of the
battery pack while charging.
• Always end the charging process if the charger or
battery comes hot to the touch or starts to change
form during the charge process.