Autel Robotics Dragonfish Lite User manual

Dragonfish Lite
Battery Quick Start Guide

Battery safety
The Dragonfish Lite aircraft is powered by lithi-
um-ion polymer batteries. Improper use of these
batteries can be dangerous. Please ensure that
the battery usage, charging, and storage guid-
elines are strictly followed.
Warning
Only use the battery and charger provided
by Autel Robotics. It is prohibited to modify
the battery pack and its charger, or use
third-party equipment to replace it.
The electrolyte in the battery is extremely
corrosive. If electrolyte splashes into your
eyes or skin accidentally, immediately rinse
the affected area with clean water and seek
medical attention.
Battery usage
When installing or removing the aircraft battery,
make sure that the aircraft is powered off. Also,
pay attention to the following:
When using the Dragonfish Lite, only use
the batteries and charging devices sold or
authorized by Autel Robotics. Using unap-
proved batteries or charging devices may
cause fire, explosion, leakage or other ha-
zards. Autel Robotic will not be held resp-
onsible for any consequences caused by
the use of third-party batteries or charging
devices.
If the aircraft enters the low battery warning
mode, you should land as soon as possible
and stop flying, replace the battery with a new
one or charge the battery.
Do not disassemble, scratch, crush, bend,
puncture, cut, twist, or intentionally damage
the battery. Otherwise, this may cause fire,
explosion, leakage or other hazards.
If the battery shows signs of bulging, lea-
kage, smoke or any other signs of damage,
stop charging or using it with immediate
effect, and immerse it in a container filled
with salt water.
Please use the battery within suitable te-
mperature (-20°C~40°C). Using the battery
at excessively high or low temperature will
affect the battery life. If the temperature is
too high, this may result in fire or combu-
stion. If the battery is used in excessively
low temperatures, this may cause perm-
anent damage to the battery.
If the battery is in a low temperature range
(below 10°C), the battery needs to be preh-
eated before taking off.
Do not use the battery in a strong static or
electromagnetic environment.
Do not expose the battery near an open
flame, explosion, or other hazards.
Do not place the battery in a microwave oven
or pressure cooker.
If the aircraft falls into the water, remove the
battery immediately after recovering it. Put
it in an open place and keep a safe distance
from it until the battery is completely dry.
After that, stop using the battery, and contact
the customer service center for a replace-
ment.
To ensure flight safety, when the power gap
between the two batteries is greater than
12%, the APP will prompt an alert and the
aircraft will be restricted from taking off.
Battery charging
The Dragonfish Lite battery takes up to 120 mi-
nutes to fully charge. This may vary depending
on the remaining battery power.
Also, please pay attention to the following:
Do not use damaged battery chargers.
When the charger is not in use, disconnect
it from the aircraft battery and power supply.
Wait for the battery to cool off at room te-
mperature before charging. If you connect
the battery to the charger immediately after
flight, the temperature protection function
may be automatically activated, preventing

the battery from charging until the battery is
completely cooled.
Battery storage and transpor-
tation
Avoid close contact with water or heat sources
when storing the battery. The battery should be
stored at room temperature (ideally 22°C to 28°C
(72°F to 82°F)) in a dry, well-ventilated area.
Also, pay attention to the following:
The battery should be stored out of reach
of children and pets.
Do not store the battery in direct sunlight
or near sharp objects, water, metals or re-
active chemicals.
Storing the battery in extreme temperatures
will shorten its life. If the battery is not used
for more than 1 day, it should be stored at a
temperature of -10°C (14°F) to 30°C (86°F).
Otherwise, this may result in damage or
battery failure. If left unused for a long time,
the battery life will be shortened.
Do not transport damaged batteries. If the
battery needs to be transported, be sure to
discharge the battery to about 20%-30%.
Battery heating
In a low temperature environment (less than 10°C),
short press and then long press the battery button
for 5 seconds to activate the intelligent flight battery
heating function, and the final battery temperature
will be maintained at 15°C-20°C. The battery will
hold this temperature for 20 minutes. During the
heating process, short press and then long press
the battery button for 5 seconds to exit the battery
heating function.
Battery heating
Do not overcharge the battery, otherwise this
may cause damage.
If the battery is left unused for a long period of
time, its performance will be affected.
Recharge and discharge the battery every
3 months or so to maintain battery activity.
It is recommended that the two batteries be
charged/discharged at the same time to obtain
the best power supply performance. It is
recommended to use the Autel Voyager
pairing function and mark the paired batteries.
Battery disposal
Before disposing of the battery, be sure to fully
discharge it before placing it in the designated
battery recycling bin. Batteries are hazardous
chemicals and are strictly prohibited to be placed
in ordinary trash bins. For details, please follow local
laws and regulations on battery recycling and di-
sposal.
Aircraft battery
The Dragonfish Lite rechargeable lithium polymer
battery has high energy density and a large cap-
acity. The battery needs to be charged with the
dedicated charger provided by Autel Robotics.
Checking the battery level
With the battery off, press the power button for 1
second, and then quickly release it to check the
battery level. The LED indicator will display the
current battery level as shown below.
Aircraft battery
Eject button Battery level indicator
Power button/battery check
1
3
2

Intelligent flight battery function
The intelligent flight battery has the following
functions:
Storage self-discharge protection
If the battery is stored in a high temperature
environment or is not used for 6 days and has
a high charge, the self-discharge protection
will be activated. The battery will automatical-
ly discharge to a safe level. This is the default
setting, and the discharge process takes 2-3
days. Although the battery has no indication
during the self-discharge cycle, you will notice
that the battery slightly heats up, which is
normal. The discharge threshold can be cu-
stomized using Autel Voyager.
Low power protection
If the battery power is low, the battery will
automatically enter sleep mode to prevent
over-discharge. In this mode, the battery does
not respond when you press the power button.
To wake up the battery, connect it to a charger.
Charging temperature detection
88%~100%
76%~87%
63%~75%
51%~62%38%~50%
26%~37%
13%~25%
0%~12%
Battery level indicator status
(not charging)
- Steady green - Blinking green - Off
If the temperature is lower than 5°C (41°F)
or higher than 45°C (113°F) during charging,
the battery will stop charging.
Overcurrent protection
If the charging current exceeds 16A, the battery
will stop charging.
Overcharge protection
The battery stops charging automatically once
fully charged.
Balance protection
The voltage of each battery cell is kept ba-
lanced to prevent overcharging or over di-
scharging.
Over discharge protection
When the battery is not in use, the battery
will automatically cut off the power output
function after the self-discharge cycle is co-
mpleted. This function is disabled during
flight.
Short circuit protection
Once a short circuit is detected, the power
supply will be cut off.
Power saving mode
If there is no operation for 30 minutes, the
battery will shut down.
Communication
When in use, the aircraft will maintain synchr-
onization with the battery to provide real-time
information, including voltage, capacity, current,
and temperature.
Ultra-low energy consumption mode
To save power, this mode will be activated
when the battery is low and has not been
charged for 1 day. After connecting the ch-
arger, the battery will resume normal fun-
ctions.

LED1 LED2 LED3 LED4
LED1 LED2 LED3 LED4
0~25%
25~50%
50~75%
75~100%
Caution
Battery level indicator status (during charging)
Specifications
LED indicator warning description
Warning note
Battery level
-The indicator light flashes -Off
-The indicator light is always green -The indicator light flashes green
If the battery overheats while charging, the LED2 indicator will flicker. If connecting to the
charger, the battery will recharge automatically after the normal temperature is detected.
Do not unplug the charger.
The charging temperature is too high or
too low.
The charging current is too high and has
caused a short circuit.
Over current, overload or short circuit
occurred during discharge.
Single Battery Power
Single Battery Charging Time
Ideal Storage Temperature
174 Wh
120 min
22to 28

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