MPPT Solar Charge Controller for Lithium Battery, Reverse Polarity Protection, Low Standby Current

MPPT Solar Panel Controller Module with Reverse‑Connection Protection **Key Benefits** Maximizes energy harvest from solar panels using Maximum Power Point Tracking, increasing charging efficiency. Protects the system from accidental reverse connections, preventing damage to the controller and connected devices. Low idle power consumption reduces overall energy loss, extending battery runtime. Designed for lithium‑based battery banks, providing stable and safe charging. Supports ‑power LED lighting modules, delivering consistent brightness even under variable sunlight. **Core Features** **MPPT efficiency**: up to 98 percent conversion of solar panel output to usable battery charge. **Reverse‑polarity protection**: built‑in safeguard that automatically disconnects the circuit if the input wires are reversed. **Low quiescent current**: less than 30 mA when no solar input is present. **Battery compatibility**: optimized for 12 V and 24 V lithium‑ion or lithium‑iron‑phosphate batteries, charge voltage range 10.5 V‑14.6 V (12 V) or 21 V‑29 V (24 V). **LED output**: can drive LED modules up to 100 W with constant current regulation. **Compact dimensions**: 120 mm × 80 mm × 25 mm, suitable for tight installation spaces. **Robust housing**: ABS enclosure with IP65 rating for dust and splash resistance. **Typical Applications** 1. **Off‑grid solar lighting** – Connect the controller to a small solar panel and a lithium battery to power ‑intensity LED lights for cabins, garden pathways, or emergency lighting. 2. **Recreational vehicle or boat power system** – Integrate the module into a mobile setup to charge the vehicle's lithium battery bank while protecting the system from wiring errors during installation. 3. **Remote monitoring stations** – Provide reliable power to solar‑fed sensors or communication equipment, ensuring continuous operation even when sunlight fluctuates. **Installation Overview** Connect the solar panel to the input terminals, observing polarity. Connect the lithium battery to the battery terminals, matching voltage level. Attach the LED module or other DC load to the output terminals. The controller automatically tracks the optimum power point and manages charging without user intervention. **Why Choose This Controller** Increases usable solar energy without complex setup. Enhances system safety with reverse‑polarity protection. Keeps standby power draw to a minimum, preserving battery life. Versatile compatibility with common lithium battery configurations and ‑power LED loads. This MPPT solar panel controller offers a reliable, efficient solution for small‑scale solar power systems that require precise battery management and robust protection.