MP3766 This compact charger uses Pulse Width Modulation (PWM) to charge 12V or 24V lead acid (sealed, gel or flooded) and supports 12V solar arrays up to 390W or 24VDC arrays up to 780W. It is recommended for battery capacities 30Ah and above and features three stage charging, including constant current, constant voltage and float charging. The backlit LCD screen displays real-time feedback on battery voltage, load voltage, PV voltage, time, etc. Two USB ports are provided to charge your USB gadgets. The fanless design is built into a durable case for permanent installation with heavy-duty screw terminals for cabling up to 6AWG. Safety features include over-voltage, low-voltage protection, reverse connection, short-circuit, over-current, and over-temperature protection. It is recommended for battery capacities 30Ah and above and features three stage charging, including constant current, constant voltage and float charging. The backlit LCD screen displays real-time feedback on battery voltage, load voltage, PV voltage, time, etc. Two USB ports are provided to charge your USB gadgets. The fanless design is built into a durable case for permanent installation with heavy-duty screw terminals for cabling up to 6AWG. Safety features include over-voltage, low-voltage protection, reverse connection, short-circuit, over-current, and over-temperature protection.