300W MPPT Solar Charge Controller Reliable MPPT charging with flexible battery support and robust protection for offgrid solar systems. Key benefits Smart MPPT tracking: efficiency maximum power point tracking adapts to different panel voltages for fast, realtime power harvesting. Stable, fast charging: Efficient synchronous rectifier circuit design delivers quick and stable charging performance. Wide battery compatibility: Adjustable output voltage from 10 to 30 V lets you charge a broad range of battery types and voltages. Builtin safety features: Includes short circuit protection, under voltage protection, over current protection, and temperature protection to protect the controller and battery. Clear monitoring and durable build: Integrated LED screen displays battery voltage and charging current; aluminum housing with dust proof and shock resistant design and protection class IP66. Technical highlights Output current: up to 25 A Output voltage: adjustable 10 to 30 V PV input open circuit voltage: 18 to 55 V PV maximum power and tracking range: 17 to 55 V PV input starting voltage: 18 to 55 V Efficiency: 95 percent or higher Voltage regulation: 1 percent Load regulation: 1 percent Load loss: 0.35 W Protection: battery under voltage protection, battery terminal short circuit protection, over current protection, temperature protection; no battery reverse connection protection Overheat response: output power is reduced when internal temperature exceeds 100 C and additional temperature safeguards engage at higher temperatures Protection class: IP66 Working temperature: 40 C to 65 C Material: aluminum Size: approximately 120 x 80 x 40 mm Weight: approximately 482 g Practical applications Solar street lighting: Use with small to medium PV arrays to maintain steady charging and protect batteries in outdoor lighting installations. Mobile solar vehicles: Suitable for electric tricycles and solarassisted vehicles requiring a regulated 10 to 30 V charging supply. Home and hobby systems: Ideal for household solar panels, solar chargers, toy cars, and remote solar monitoring where reliable MPPT tracking and clear voltage and current readouts are needed. Note Compatible with batteries that require charging voltages between 10 and 30 V. Verify PV open circuit and working voltages fall within the specified ranges before installation.