This 3S 12V MPPT Solar Charge Controller is a high-efficiency solar power management module designed for charging 3-series lithium batteries from 12V solar panels. Based on the CN3722 MPPT controller chip, it uses a high-frequency DC-DC buck conversion to continuously track the maximum power point of the solar panel, ensuring optimal energy utilization under changing light conditions.

The controller supports turbulence, constant current, and constant voltage charging modes for safe and reliable battery management. With high-quality MOSFETs, low-loss components, and a large aluminum heat sink, it delivers stable performance and fast charging even at high currents.

Features:

1. True MPPT technology for maximum solar power utilization
2. Designed for 3S lithium battery charging (12.6V full charge)
3. High-efficiency DC-DC buck conversion using CN3722 chip
4. Supports pre-charge, constant current, and constant voltage modes
5. High-quality MOSFETs, power inductor, and current sensing resistor
6. Large aluminum heat sink for stable high-current operation
7. Dual LED indicators for charging and battery status
8. Compact module with solder pad wiring interface

Package Includes:

1 x 12V MPPT Solar Charge Controller for 3S Lithium ion Battery