Other Smartphone Accessories - Universal - Solar Charge Controller, 30A Solar Panel Controller Highlights Universal Solar Charge Controller, 30A Solar Panel Controller Solar Charge Controller, 30A Solar Panel Controller Product is shipped based on color or the size of the main product page image. Wide Compatibility: The solar charger controller with 30A rated discharge current is compatible with 12V or 24V system, suitable for lead-acid batteries: open, AGM, gel. USB 5V / 3A USB output ports support mobile phones, tablets or other devices that require 5V voltage. Reliable Protection: The solar charge controller provides over current protection, short circuit protection, reverse connection protection, low voltage and overload protection, a reliable protector for your devices. Intelligent: Built-in industrial microcontroller for automatic management, memorize various user-defined parameters, and data will not be lost when the battery runs out. The solar controller will automatically shut down once the voltage is too low. Functional LCD Display: Intuitive LCD display which can clearly show status and data is able to switch modes and parameter configuration, suitable for home, industrial, commercial etc. Easy to use: the charge controller needs to connect the battery first, then the solar panel, and finally the load You can change the settings by the simple one-button operation.