MPPT Solar Charge Controller, Intelligent MPPT Maximum Power Point Tracking Description This MPPT solar charge controller uses true maximum power point tracking and automatic intelligent management to maximize solar input, reduce power loss, and extend battery life. It is designed for low power consumption and conversion efficiency, with end switching components and low ESR capacitors to minimize output ripple and filter switching noise. Key Benefits Maximizes solar output: Real MPPT automatic tracking extracts the most power from panels across changing light conditions. Improves charging efficiency: Low voltage drop design (typical 1 V stepdown headroom) and frequency switching components increase conversion efficiency. Protects batteries: Automatic threestage intelligent charging and automatic stop at full charge help prevent overcharging. Robust and easy to use: Builtin input reverse polarity protection and output protection reduce risk of wiring errors. LED indicators display charging status. Compatibility and Function Solar input power range: 1 W to 100 W. Input voltage: DC 8 V to 28 V only. Do not connect AC. Output voltage: DC 5 V to 26 V stepless adjustment. Output current options: 2 A or 5 A maximum. Default version is 5 A. Battery chemistries supported: nickelcadmium, nickelhydrogen, and various lithium battery configurations. Lithium charging voltages supported: 8.4 V, 12.6 V, 16.8 V. Lithium iron phosphate (LiFePO4) charging voltages supported: 7.2 V, 10.8 V, 14.4 V. Supports 2 to 4 series lithium cells and LiFePO4 management boards. Low pressure requirement: input must be at least 1 V higher than desired output due to stepdown regulator design. Protections: input reverse polarity protection and output protection. Connections: three terminals for panel, battery, and load wiring. Indicators and Operation LED indicators show charging status: steady red for fast charging; alternating red and blue while charging; controller stops charging automatically when battery is full. Automatic intelligent threestage charging adjusts charge current and voltage automatically based on battery state. MPPT function continuously and automatically tracks the maximum power point to make full use of solar panel output. Construction and Performance Notes end switching power supply design with frequency, lowimpedance electrolytic capacitors reduces output ripple and filters switching glitches to improve conversion rates. Ultralow power standby design for minimal energy draw when solar input is low or absent. Suitable for professional matching with solar panels and small renewable systems. Practical Applications Solar street lighting: Charge LiFePO4 or leadequivalent battery packs for lighting systems powered by 1 W to 100 W PV modules. Small offgrid systems: Maintain and charge batteries for cabins, RVs, or remote equipment using 9 V to 28 V solar panels. Wind or mixed renewable setups: Use with small wind turbines or hybrid systems to manage battery charging and stabilize charging current. Package Contents 1 PC MPPT Solar Panel Regulator Controller Important Notes Item color and dimensions may vary slightly due to lighting and manual measurement. Do not connect AC to the input. Ensure input voltage is within DC 8 V to 28 V range.