【12V/24V Adaptive】Smart solar charge controller is 12V/24V battery automatic adaptation, with multiple indicators showing battery charge and discharge information. During initial use, please make sure your battery has adequate voltage for the solar charge regulator to correctly identify the battery type. 【Lightweight Compatible】MPPT Solar panel regulator's weigh less than 1 pound. The tracking efficiency is up to 99%, the conversion efficiency is up to 96%, and it has a lithium battery wake-up function. 【Multiple Charging Options】50A Solar panel battery intelligent regulator supports USB 5V/2.5A + DC input/output. You can connect DC and USB devices directly as preferential to the optional load terminals and monitor power consumption. 【Multiple Intelligent Protections】Safe to use and equipped with protection, including over-current protection, open-circuit protection, short-circuit protection, reverse polarity protection, devices protection. Solar charge regulator will automatically shut down once the battery voltage drops below 11.5V for protecting the battery life. 【Improvement of Charging Speed】MPPT solar charge controller 50A is designed to track and concentrate charging functions, collect energy from solar panels, and maximize solar charging speed. 【After-sales Service】Solar charge controller has a two-year warranty. We hope to continue to output high-quality products to meet the needs of every customer. If you have any issues and questions about solar charge regulator, please contact us.