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The CN3761 Lithium Battery Charger Protection Board is a high-efficiency charging module designed for 4.2V lithium battery charging using a wide 5V–15V input range. It supports constant current and constant voltage charging modes, ensuring safe and stable charging performance. The module is especially suitable for solar-powered charging applications, offering intelligent MPPT-like behavior to optimize charging efficiency under varying sunlight conditions. Its built-in protection functions enhance battery safety during both charging and discharging.
1 × CN3761 Lithium Battery Charger Protection Board Module
| Charging IC | CN3761 |
|---|---|
| Input Voltage | 5V–15V DC |
| Output Voltage | 4.2V (lithium battery charge voltage) |
| Charging Mode | CC/CV |
| Charge Current | Adjustable (board-dependent) |
| Battery Type Supported | Single-cell Li-ion / Li-Po |
| Protection | Overcharge protection, temperature stability, input fluctuation compensation |
| Module Type | Lithium battery solar charging module |
| Operating Temperature | –20°C to +70°C |
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