RadioLink CM210 User manual

RadioLink Electronic Ltd
www.radiolink.com
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Contents
1. Safety Precautions ..................................................................................................... 3
2. Functions ................................................................................................................... 4
3. Speficifications ........................................................................................................... 5
4. Instructions for Use .................................................................................................... 5
5. LED Indicator Status .................................................................................................. 6
6. Voltage Calibration of CM210 .................................................................................... 7

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www.radiolink.com
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1. Safety Precautions
(1) Please read this manual carefully before using to make sure CM210 is safely operated.
(2) Please connect CM210 to the power supply first, and then connect the 2S LiPo battery for
charging.
(3) Keep the charger always away from children and pets.
(4) Keep the charger supervised when charging.
(5) If the battery has any abnormalities such as leakage, bulging, peeling of the outer skin,
color change or deformation, please do not charge.
(6) Do not refit or disassemble the charger.
(7) Do not keep the charger or battery close to a combustible material while in use.
(8) Do not try to charge "non-rechargeable" dry cells.
Thanks for choosing RadioLink CM210 balance charger. To fully enjoy the benefits of this
product and ensure safety, please read the manual carefully. If any problems found during the
operation process, either way listed below can be used as online tech support.
earliest.
(2) Send private message to us on our Facebook page or leave comments on our YouTube
page.
(3) If the product is purchased from the local distributor, you can also ask them for support and
repair as prefer.
Note: Do not allow children (Less than 14 years old) to touch this product. This product is not a
toy. Please be careful when operating in scenes where children are present.

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2. Functions
(1) Low-power precharge: When it is detected that the voltage of a single cell of the battery is
lower than 3.0V, a small current is used to activate the battery to restore the battery
capacity.
(2) Fast charge: When it is detected that the voltage of a single cell of the battery is higher than
3.0V and lower than 4.16V, 1.5A is used to charge the battery.
(3) Trickle charging: When it is detected that the voltage of a single cell of the battery is higher
than 4.16V, 0.8A is used to charge the battery to make the battery fully charged and avoid
overcharging.
(4) Temperature control: When it is detected that the board temperature is higher than 75
degrees Celsius, the charging current will be reduced to 2/3 of the predetermined current to
lower the board temperature, and when it is detected that the board temperature is lower
than 70 degrees Celsius, predetermined current will be restored to charge the battery.
(5) Power supply protection: When it is detected that the power supply voltage drops to 3.7V,
the current current is set to a predetermined current to adapt to various charging heads of
different specifications.
(6) Balance charging: When the battery voltage is charged to 4.16V, if it is detected that the
voltages of the two batteries are not equal, the balance charging is turned on to ensure that
the battery voltages are consistent.
(7) Charging alarm: When there is no current detected for a long time, charging will be
automatically stopped, and the red LED will flash to indicate abnormality.
(8) Charging time: About 40 minutes for a 500mAH 2S battery.
(9) Voltage precision: The full voltage is 4.20V±0.02V.
(10) Charging efficiency: Higher than 82%.

RadioLink Electronic Ltd
www.radiolink.com
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3. Speficifications
Size: 40.5*21*15 mm
Weight: 9g
Input Voltage: 5V
Supporting Battery: 2S LiPo battery
Charging Precision: 0.02V
Charging Voltage: Max. 4.2V for each battery cell
Charging Current: 1.5A
Balance Current: 0.8A
Max. Output Power: 20W
Power Supply Input Port: USB Type-C Input
Charging Port Interface: 2S battery balance port
Working Modes: Charging Mode, Balance Mode, Repair Mode (Self-adaptive, with no need
to set it)
4. Instructions for Use
1Insert one end of the standard USB cable into the Type-C input port of the CM210
charger (as shown in the picture below), and then connect the other end of the USB cable to
power supply equipment such as power bank, computer, mobile phone adapter, etc.. After the
right connection, the red LED indicator will be always on.
2Insert the balance port of the standard 2S lithium battery of A560 into the charging port
of CM210 (as shown in the picture below). Then the green LED indicator starts flashing, which
means it starts to charge the battery. (Note: The green LED indicator flashes during the
charging to indicate normal charging; If the red LED indicator flashes during the charging to
indicate abnormal charging. Please reconnect battery and cable to troubleshoot the
abnormality.)

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3When all four LED indicators turn solid green, the battery is fully charged, and the
charger will automatically stop charging.
4Remove the battery and then disconnect the power supply.
5. LED Indicator Status
LED indicator status
Meaning
All green LEDs flash once
All green LEDs will flash once when the charger is powered
on, indicating that the calibration has been done. (Voltage
calibration has already finished by factory default.)
Red LED is always on
When the charger is powered on and no battery is
connected, the red LED is always on, indicating battery
needs to be connected.
Red LED flashes during
charging
The charger detects abnormality. Please reconnect battery
and cable to troubleshoot the abnormality.
The first green LED flashes
The battery voltage is lower than 7.4V.

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The first green LED is always
on, and the second green
LED is flashing
The battery voltage is higher than 7.4V and lower than 7.8V.
The front two green LEDs
are always on, and the third
green LED is flashing
The battery voltage is higher than 7.8V and lower than 8.2V.
The front three green LEDs
are always on, and the fourth
green LED is flashing
The battery voltage is higher than 8.2V and lower than 8.4V.
All four green LEDs are
always on
The battery is fully charged.
6. Voltage Calibration of CM210
Three power supplies are required. Two 5V power supplies at the battery end, with 0.1A current.
When the battery end is connected, turn on the battery end power supply. The voltage of the
charging end power supply is set to 5V, with 3A current. When the power supply end is
connected, turn on the charging end power supply. Then the MCU runs the calibration program
inside . When all the green LED indicators are on at the same time and then go out, the
calibration is completed
Thank you again for choosing RadioLink product.
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