EN
The Battery Charging Process
1. Charge only batteries that are cool to the touch and
are not damaged. Look at the battery to make sure
it is not damaged e.g., swollen, bent, broken or
punctured.
2. Attach the input cord of the charger to the
appropriate power supply (12V accessory outlet).
3. When the Li-Po charger is correctly powered up,
there is an approximate 3-second delay, then an
audible “beep” and the green (ready) LED will flash.
4. Turn the control on the Amps selector so the arrow
points to the charging rate required for the Battery.
(See chart, for example the Yak 54 2800mAh Li-Po
battery will charge at 3.0 amps.) DO NOT change the
charge rate once the battery begins charging.
5. Move the cell selector switch to 3-cell or 4-cell for
your battery.
6. Connect the Balancing Lead of the Battery to the
3-cell (4 pins) or 4-cell (5 pins) Charger port.
7. The green and red LEDs may flash during the
charging process, when the charger is balancing
cells. Balancing prolongs the life of the battery.
8. When the battery is fully charged, an audible beep
will sound for about 3 seconds, and the green LED
will shine continuously.
9. Always unplug the battery from the charger
immediately upon completion of charging.
CAUTION:
Overcharging a battery can cause a fire.
Charging the Flight Battery
Your E-flite Carbon-Z Yak 54 comes with a DC balancing
charger and 4S Li-Po battery. You must charge the
included Li-Po battery pack with a Li-Po specific charger
only (such as the included charger). Never leave the
battery and charger unattended during the charge
process. Failure to follow the instructions properly
could result in a fire. When charging, make certain
the battery is on a heat-resistant surface. Charge the
battery pack while you are assembling the aircraft. You
will need the flight battery to confirm proper aircraft
operation in future steps.
DC Li-Po Balancing Charger Features
• Charges 3-to 4-cell lithium polymer battery packs
• Variable charge rates from 500mAh to 3-amp
• Simple single push-button operation
• LED charge status indicator
• LED cell balance indicator
• Audible beeper indicates power and charge status
• 12V accessory outlet input cord
Specifications
• Input power: 12V DC, 3-amp
• Charges 3- to 4-cell Li-Po packs with minimum
capacity of 500mAh
4S 14.8V 2800mAh Li-Po Battery Pack
The E-flite 4S Li-Po battery pack features a balancing
lead that allows you to safely charge your battery pack
when used with the included E-flite Li-Po
balancing charger.
WARNING:
Failure to use the proper charger for a
Li-Po battery can result in serious damage, and if left
charging long enough, will cause a fire. ALWAYS use
caution when charging Li-Po batteries.
WARNING:
Selecting a charge rate higher than 1x
(one times) the battery capacity may cause a fire.
Battery Capacity
Maximum Charge Rate
500-1000mAh
500mA
1000-1500mAh
1A
1500-2000mAh
1.5A
2000-2500mAh
2.0A
3
3.0A
®
Low Voltage Cutoff (LVC)
When a Li-Po battery is discharged below 3V per
cell, it will not hold a charge. The Carbon-Z Yak 54
Electronic Speed Control protects the flight battery
from over-discharge using Low Voltage Cutoff (LVC).
Before the battery charge decreases too much, LVC
removes power from the motor. Power to the motor
pulses, showing that some battery power is reserved
for flight control and safe landing.
When the motor pulses, please land the aircraft
immediately and recharge the flight battery.
Disconnect and remove the Li-Po battery from the
aircraft after use to prevent trickle discharge. Fully
charge your Li-Po battery before storing it.
During storage make sure battery charge does not go
below 3V per cell.
Note:
The speed control is programmed for 4S LVC.
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