Broad Compatibility: This 30A rated discharge current solar charge controller automatically works with 12V or 24V systems and is compatible with OPEN, AGM, and GEL lead-acid batteries. Dual USB 5V/3A output ports support charging mobile phones, tablets, and other devices requiring 5V. Reliable Protection: The solar charge controller offers comprehensive protection, including over-current, short-circuit, reverse connection, low-voltage, and over-charge protection, ensuring your devices are always safe. Intelligent Operation: Featuring a built-in industrial microcontroller for automatic management, it memorizes user-set parameters, and data is retained even when the battery is depleted. The controller automatically shuts off when the voltage is too low. Functional LCD Display: An intuitive LCD display clearly shows status and data, allowing you to switch modes and configure parameters. It's suitable for home, industrial, and commercial applications. Easy to Use: Connect the battery first, then the solar panel, and finally the load. You can easily adjust settings with the simple one-button operation.