CN3791 6V Mini Solar Lithium Battery Charger Board

Maximum Power Point Tracking (MPPT): Integrated with the CN3791 MPPT tracking controller IC, optimizing solar panel output efficiency specifically tuned for nominal 6V photovoltaic panels.

High-Efficiency PWM Step-Down Charging: Uses a high-frequency PWM synchronous switch-mode buck architecture to charge single-cell lithium batteries with high power conversion efficiency and minimal heat generation.

Automatic Multi-Stage Charging: Manages single-cell (3.7V) lithium-ion/LiPo charging via trickle charge, constant current (CC), and constant voltage (CV) stages for safe cell replenishment.

JST-PH 2.0mm Connection Sockets: Onboard 2-pin JST-PH 2.0mm connectors provide effortless plug-and-play wiring for solar panel input, battery terminals, and output loads.

Dual LED Real-Time Indicators: Onboard surface-mount LEDs offer visual feedback for active charging status and full charge completion.

Deep Discharge & Overcurrent Guard: Built-in safeguards protect the connected lithium battery pack against overcharging, short-circuit, and reverse current leakage.

Housing & PCB Style: High-density double-sided FR-4 glass epoxy PCB with blue soldermask, power inductor, and SMD componentry.

Contact & Terminal Style: Standard JST-PH 2.0mm male connector sockets and direct input/output solder pads.

Technical Specifications:

Main Controller IC: CN3791.

Input Solar Panel Voltage: 6V Nominal PV Panel.

Target Battery Chemistry: 3.7V Nominal Single-Cell Li-Ion / LiPo (4.2V full charge).

Max Output Charge Current: Up to 2A max.

Switching Frequency: Approx. 300kHz.

Color: Blue PCB with white JST sockets.

Usage Advice: Designed specifically for 6V nominal solar panels. Ensure battery connection polarity (+ and -) matches the board markings before powering.

Maintenance: Keep board contacts clean, dry, and free of dust or flux residue. Store in an anti-static bag when not integrated into an outdoor enclosure.

Essential 6V MPPT Solar Power Module: Position as an indispensable power harvesting breakout board for 6V photovoltaic panel systems powering off-grid IoT sensors, remote weather stations, and outdoor wireless nodes.

Highlight MPPT Efficiency & Buck Architecture: Emphasize the true MPPT capability that extracts maximum solar energy compared to basic linear solar chargers.

Recommended Cross-Sell Add-ons: Pair with CN3065 500mA Mini Solar Lithium Battery Charger Board, CN3791 9V Mini Solar Lithium Battery Charger Board, TP4056 1A lithium charging module Type-C, and ESD antistatic mat 50x40CM PCB Welding Mat.

Featured Collection Star: Display prominently on your Solar Charger Module collection page under 6V MPPT power converters.