Reference: RBD-4003
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The 4S 16.8V Type-C Lithium Battery Charging Board (2A) is a compact and efficient charging solution designed for 4-cell lithium-ion or lithium-polymer battery packs. Featuring a Type-C input interface, it supports up to 2A input current with an output charging voltage of 16.8V and 0.56A charging current. Built-in protection mechanisms safeguard against overvoltage, low-input, and short-circuit conditions, ensuring stable and safe charging performance. The high switching frequency of up to 1MHz provides superior efficiency, while the quasi-constant voltage mode compensates for voltage losses caused by internal resistance. With LED indicators displaying charge and full status, and automatic regulation to maintain battery health, this module is perfect for DIY projects, portable electronics, and embedded systems that rely on 4-cell lithium power configurations. Featured By RoboticsBD.
Product Images are shown for illustrative purposes only and may differ from the actual product.
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Type-C Power Input: Provides compatibility with modern USB Type-C chargers and adapters.
High Efficiency: Operates up to 1MHz switching frequency for fast charging and stable operation.
Safety Protection: Integrated overvoltage, short-circuit, and low-input protection.
LED Status Indicators: CR for charging and OK for full charge or constant voltage operation.
Quasi-CV Compensation: Automatically adjusts for internal battery resistance to ensure consistent voltage.
Compact and Lightweight: Easy to integrate into small devices or custom battery packs.
Automatic Recharge: Keeps the battery topped up when voltage drops below threshold.
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Charging 4S lithium-ion or lithium-polymer battery packs.
Powering portable electronic devices such as PDAs, MP3/MP4 players, and mobile phones.
Integration into Type-C powered DIY projects and rechargeable battery systems.
Electric fans, handheld devices, and embedded electronics.
Battery management and prototyping for 4-cell configurations.
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| General Specifications | |
| Input Voltage | DC 3–6V (Recommended 3.7V/5V) |
| Input Current | 2A |
| Charging Voltage | 16.8V |
| Charging Current | 0.56A |
| Switching Frequency | Up to 1MHz |
| Protection Features | Overvoltage, short-circuit, low-input |
| LED Indicators | CR (Charging), OK (Full) |
| Operating Temperature | -40°C to +85°C |
| Dimensions | 39mm × 18mm × 6.3mm |
| Interface Type | Type-C USB |
| Suitable Battery Type | 4S Li-ion / Li-Po |
| Shipment Weight | 0.0045 kg |
| Shipment Dimensions | 4 × 2 × 2 cm |
Please allow 5% measuring deviation due to manual measurement.
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1 x 4S 16.8V Type-C Lithium Battery Charging Board 2A
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