11
12
Once you have connected the charger to a power source (use care to ensure proper polarity when connecting
the charger to the power source), its red LED will flash to indicate the charger has power and is ready to begin
charging . Connect the Li-Po battery pack to the charger using the specially marked Balance Charge Lead exiting
the battery pack and the connector labeled with 7 .4V on the charger . The connector is keyed to prevent reverse
polarity connection .
Note:
Do not force the connector on the Balance Charge Lead into the connector labeled 11 .1V on the charger .
Doing so could result in damage to the battery pack and charger, and could result in a fire .
When the battery is properly connected and charging normally, the red and green LED indicators will glow solid .
Once the battery has been fully charged, the green LED will go out, leaving just the red LED glowing solid . The
battery can now be removed from the charger and installed into the Blade CX3 MD 520N for flight .
Charge Errors and Indications
In the event that both the red and green LEDs flash, a charge error has occurred. Some examples of
charge errors and their indications include:
• Alternating flashing of the red and green LEDs will indicate that the charge process has been interrupted. If input
power to the charger has been interrupted due to disconnection from the power source or a drop in voltage/
current output from the power source, unplug the battery from the charger . Next, check to make sure that the
input power plug from the AC to 12V DC adapter/power supply is connected or that the alligator clips are firmly
and properly attached to the power source . Also be sure that the power source is providing the proper amount of
voltage and current required to the charger .
After confirming the connections and that the power source is delivering the necessary voltage and current, re-
start the charge process by connecting the battery pack . Continue to monitor the charge process to ensure that
no further charge errors occur .
• Simultaneous flashing of the red and green LEDs will indicate that the voltage of the Li-Po battery pack is too low
to allow the charge process to begin . In this case the battery may have been over-discharged due to flying the
model too long (For more information on preventing over-discharge of the Li-Po battery pack, see the guidelines
section found on page 9), or that a single cell or even all cells in the battery pack may be damaged .
If after several charging attempts you continue to see this charge error indication, you should remove
the battery pack from service and replace it with a new one.
If you have any further questions or concerns regarding charge error indications, please contact the Horizon
Support Team at 877-504-0233 .
Installing the Transmitter Batteries
Install the 4 included AA batteries in the transmitter . Check the power level of the batteries and operation of the
transmitter by switching the power switch on (upward) . The LCD screen at the top of the transmitter will indicate the
power level of the batteries . If at any time the voltage indicated on the LCD screen falls to 4 .0V or less, it will be
necessary to replace the batteries with new ones .
Note:
Because the LP5DSM transmitter included with the Blade CX3 MD 520N is equipped with Spektrum 2 .4GHz
DSM2 technology, it does not require the same input voltage or current consumption as a typical 72MHz transmitter
for proper operation and optimum performance .
