Mastervolt SCM40 PWM Features: - High efficiency: your batteries are charged quickly - Capacity for solar panel configurations of up to 3600 Wp - Suitable for AGM, gel, wet and Mastervolt Lithium Ion batteries - Fast and flexible setting of battery type - Battery temperature sensor for long lifespan - Automatic 12V and 24V detection - Switchable output - Noiseless operation - LCD display - Fully protected against overtemperature, overload, high/low battery voltage, high/low PV voltage, short circuit and reverse polarity Specifications: - System Voltage Battery: 12/24V auto select - Battery Types: AGM, gel, wet, Lithium Ion - Battery Temp Sensor: Yes - Max Charge Current at 25 degrees C/77 degrees F: 40A - Switchable Output (Max Current): 40A - Energy Comsumption (night): 4 mA - Communication: PC-Link (optional) - Cooling: passiveDisplay/Read-Out: LCD display with battery state of charge, status output, battery setting