Product overview
The RadioLink CM210 supports field charging for small racing drones, small fixed-wing aircraft and model vehicles using 2S lithium batteries. Its 40.5 × 21 × 15 mm body weighs 5 g, making it a compact addition to a portable charging setup. The electrical architecture combines series charging with bypass balancing, with dynamic balancing throughout the charging cycle. A USB Type-C connection accepts 5 V DC, and charging current automatically adapts to the connected supply’s capability.
The supplied package contains one CM210 charger, one Type-C charging cable and one packaging bag. Maximum pulse charging current is 1.5 A, with 0.8 A balancing listed alongside both 0.8 A and 1.5 A charging. A 600 mAh 2S battery can charge within 20 minutes under the stated laboratory conditions, with actual time dependent on supply current. Protection includes fault shutdown, a flashing red LED for prolonged absence of current, and thermal current reduction above a board temperature of 75°C, followed by restoration below 70°C.
Specifications
| Specification | Value & conditions |
|---|---|
| Product | RadioLink CM210 mini balance charger |
| Battery configuration | 2S lithium battery balance charger |
| Dimensions | 40.5 × 21 × 15 mm |
| Weight | 5 g |
| Power input | USB Type-C, 5 V DC |
| Adaptive charging current | Automatically adjusts charging current to avoid overloading the power supply.According to the connected power supply's output capability. |
| Power source options | Adapter, computer, power bank or vehicle charger5 V DC USB Type-C input. |
| Charging architecture | Series charging with bypass balancing |
| Maximum pulse charging current | 1.5 A maximum |
| Balancing operation | Dynamic balancing throughout charging |
| Charging and balancing current combinations | 0.8 A charging with 0.8 A balancing; 1.5 A charging with 0.8 A balancing |
| Charging time | Within 20 minutes600 mAh 2S lithium battery; laboratory measurement; actual time depends on the power supply's maximum current. |
| Low-voltage recovery | Activates trickle recovery.When an individual cell is below 3.0 V. |
| Near-full charging adjustment | Automatically switches to trickle top-up mode and adjusts to 1C charging.When the battery approaches full charge at 4.16 V. |
| Fault protection | Automatically stops charging and provides an LED alarm.When a circuit or battery fault occurs. |
| No-current alarm | Stops charging and flashes the red LED.When no current is detected for an extended period. |
| Power supply protection | Sets the present current as the preset current.When supply voltage drops to 3.7 V. |
| Thermal protection | Reduces charging current to two-thirds of the preset current; restores the preset current below 70°C.Board temperature above 75°C; restoration when board temperature falls below 70°C. |
| Charging accuracy | 0.02 V |
| Charging efficiency | Greater than 82% |
| Charge indication | Battery-level LEDs indicate charging progress in real time. |
| Package contents | One CM210 2S lithium battery balance charger, one Type-C charging cable and one packaging bagSupplied package. |
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