Description This solar battery charge controller automatically manages and regulates the voltage and current from the solar panel to the battery. It features short-circuit protection, open-circuit protection, reverse polarity protection, and overload protection to help prevent battery overcharging. Features - Solar charge controller regulates voltage from solar panels to battery - Built-in industrial control chip for managing charging and discharging processes; adjustable parameters to help extend battery life and maintain load performance - Professional PWM charge management with comprehensive protection functions including short-circuit, open-circuit, and reverse polarity protection - LCD screen with backlight clearly displays system status and data - Easy to install and operate, suitable for home, industrial, and commercial solar energy systems Specifications - Color: Black - Material: Plastic - Size: Approx. 18.8 x 5.2 x 9.2 cm - Battery Voltage: 12V/24V - Charge Current: 20A/30A - DC Output: 12V - Float charge voltage: 13.7V / 27.4V - Undervoltage protection: 10.5V / 21V - Undervoltage recovery: 12.2V / 24.4V - Loop voltage drop: 170mV - Temperature compensation: -4mV/Cell - Operating temperature: -20C to 60C - Storage temperature: -30C to 70C - Humidity: up to 90% non-condensing Package Includes 1 x Solar Charge Controller