Solar Max Digital Solar Charge & Discharge Controller 20A

Key Features

•     Stable Performance: Built-in industrial micro controller, which can operate steadily in cold, high temperature and humid environment.
•     12V/ 24V Voltage Auto Identification, so intelligent and provides your life more convenience.
•     LCD Display Large Screen: ensures convenient and intuitive operations.
•     Dual USB output: Easy connect to mobile phones, allows fast and powerful charging for mobile phones.
•     Fully 3-stage PWM charge management: Equalizing charge to the battery periodically, can effectively prevent the battery from non-equalization and sulfuration, and prolong the battery's service life