MPPT Solar controllers (Maximum Power Point Tracking) can intelligently regulate the working voltage of solar panels, letting the solar panels always work at Maximum Power Point of V-A curve. Compared with ordinary solar controller, this MPPT controller can increase the efficiency of PV modules by 10% to 30%. This series of controllers can effectively prolong the lifecycle of batteries, significantly improve the system performance and gives all-round electronic protection, including overcharging and over-discharge protection to minimise damage to system components caused by incorrect installation or system failure, this effectively ensures a safer and more reliable solar power system. Features MPPT function Compatible with lead acid & lithium-ion batteries 5VDC dual USB outputs Built in display Optional 2m wired remote display Microprocessor controller pulse width modulation (PWM) charging Overload protection Overcharge protection Short circuit protection Lightning protection Reverse discharge protection Reverse polarity connection protection Under voltage protection Rated battery voltage 12/24vdc RJ45 communication port for optional remote meter Specifications Max Rated Charging Current: 40 amps Max Rated Load Current: 40 amps Rated Solar Charge Power: 520 Watts @ 12V - 1040 Watts @ 24V Max. PV Array Power: 1560W / 12V - 3120W/24V Max Input Voltage: 100Vdc MPPT Efficiency: 99.5% Self Consumption: ≤14mA/12V - ≤15mA/12V System Voltage: 12V/24V Auto-set Working Temperature: -35° to +55° Battery Selection: Gel, Sealed, Flooded, Lithium-ion Enclosure: IP30 Temperature Compensation: -30mV/°C/12V @ 25°C Control Mode: MPPT Charging Max PV Wire Size: 6mm² Dimensions: 183mm x 256.8mm x 66.7mm