Review on Efficient 20A Solar Charge Controller with Adjustable LCD Display for 12V/24V Solar Panel Battery System, Intelligent Regulator featuring Dual USB Ports by Kevin Schnitzer

The main function of the regulator is to regulate the battery voltage. This allows producing as much or less than solar panels. The default value of 10.7 to 13.7V floating point has been tested and validated. Battery reaches 15.9v. Outside of Revain's return window and not having the patience to attempt an exchange from China. Just take my advice and buy something else.