LiPo Charger Boost Board 3S 2A

The LiPo Charger Boost Board 3S 2A is a compact and efficient charging module designed for 3-cell (3S) lithium polymer batteries, providing reliable charging and protection in one convenient board. Featuring the CN3303 charger IC, it delivers a regulated 12.6V charging voltage with a maximum charging current of 0.74A, making it suitable for battery packs used in portable devices, DIY projects, and solar-powered systems. The board can be powered from a 3–6V DC input (recommended 3.7–5V) and includes a USB Type-C input, ensuring broad compatibility with modern power sources.

Engineered for safety and versatility, this module offers multiple protection features such as over-temperature, over-voltage, low-battery, and short-circuit protection. It also supports automatic recharge and quasi-CV mode to compensate for voltage losses, ensuring batteries are charged efficiently and safely. LED indicators clearly display charging and completion status, making it user-friendly for both beginners and advanced users.

Quick Spec

• Charger IC: CN3303
• Battery Type: 3S LiPo (3 cells in series)
• Charging Voltage: 12.6VDC
• Charging Current (Max): 0.74A
• Input Voltage Range: 3–6VDC (recommended 3.7–5VDC)
• Input Current (Max): 2A
• Operating Current: 280µA @ VIN = 5VDC
• Switching Frequency: Up to 1MHz
• Connector Type: USB Type-C (female)
• Protection Features: Low-voltage, short-circuit, over-temperature, over-voltage
• Features: Automatic recharge, solar panel compatible, quasi-CV mode, adaptive input handling
• Indicators: CR (charging), OK (charge complete)
• Operating Temperature: −40°C to +85°C
• Dimensions: 38.5 × 18.3 × 4.8mm
• Mounting Hole Diameter: ~2.7mm
• Mounting Hole Spacing: ~14mm (center-to-center)

Wiring

Resources

• CN3303 Datasheet

Shipping List

• 1 x LiPo Charger Boost Board 3S 2A