10X MANUAL Heli
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Note: It is imperative that you fully charge both the transmit-
ter and the receiver battery packs prior to each flight. To do so,
leave the charger and batteries hooked up overnight (16 hours).
The first charge should be approximately 20–24 hours in order to
fully charge both battery packs to peak capacity.
The charger supplied with this system is designed to recharge
your batteries at a rate of 50 mA for the transmitter and
120 mA for the receiver battery pack.
Transmitter Only
The center pin on all JR remote control systems is negative.
Therefore, the center pin on all JR chargers is negative, not posi-
tive. This is different from many other manufacturers’ chargers
and radio systems. Beware of improper connections based on
“color code” wire leads, as they do not apply in this instance.
You must make certain that the center pin of your JR transmitter
is always connected to the negative voltage for correct polarity
hookup.
Note: Please refer to the following diagrams:
Red=positive Brown=negative Orange=signal
Please note this is different than Tx charge polarity.
The pilot lamps should always be “on” during the charging oper-
ation. If not, check to make sure that both the transmitter and
receiver are switched “off.”
Do not use the charger for equipment other than JR. The charg-
ing plug polarity may not be the same. Equipment damage can
result.
Do not use other manufacturers’ after-market accessories that
plug into the transmitter’s charge jack. If you do, any resultant
damage will not be covered by warranty. If you are unsure of
compatibilities with your radio, seek expert advice before doing
anything to avoid possible damage.
During the charging operation, the charger’s temperature is
slightly elevated. This is normal. Also, note that the voltage
shown on the charger is higher than the battery in use. This volt-
age can not be measured with a voltmeter. Only current can be
measured with any accuracy using this type of charger.
Be sure to use the proper (120 mA) charger when using battery
packs of 1000 mAh or larger for your receivers.
Battery Charging
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