Check the listing for details. 20A-40A Solar MPPT Charge Controller 12V/24V 80A 100A Solar Battery Regulator US. Condition: New. Listed at 39.98 USD. Type 1: 20A 30A 40A Rated charge current 20A 30A 40A Input Solar panel input range 16.8V-60V(12V) 16.8V-75V(12V) 16.8V-100V(12V) 33.6V-60V(24V) 33.6V-75V(24V) 33.6V-100V(24V) System rated voltage 12/24V Auto recognized Maximum battery voltage 8V-32V Maximum input power 260W(12V) 390W(12V) 520W(12V) 520W (24V) 780W (24V) 1040W (24V) Output Rated Discharge Current 20A 20A 30A Battery type User default, Sealed, Flooded, GEL, LiFePO4, Li(NiCoMn)O2. Maintenance-free lead-acid battery :14.6V, Equalized charging voltage Duration: 2hours GEL:No;Lead-acid Flooded battery: 14.8V Maintenance-free lead-acid battery :14.4V, Absorption charging voltage Duration: 2hours GEL:14.2V ;Lead-acid Flooded battery: 14.6V Float charging voltage Maintenance-free lead-acid battery, GEL, lead-acid Flooded battery :13.8V Rated charge current 20A 30A 40A LVR Maintenance-free lead-acid battery, GEL, lead-acid Flooded battery :12.6V LVD Maintenance-free lead-acid battery, GEL, lead-acid Flooded battery :10.8V Static loss ≤50mA HVD Lead acid battery 16V Light control voltage 5V/10V Temperature compensation coefficient -4mV/°C/2V(25°C) Discharge loop voltage drop -20°C~ +70 °C Operating temperature -20°C ~ +55 °C Storage temperature -30~ +80 °C Working humidity ≤90%, No condensation Protection class IP30 Grounded type Positive grounded Aperture for installation 中5mm Type 2: 80A 100A Item ICharger MPPT 8048 ICharger MPPT 10048 Charging Mode 3-stage: Constant Current(MPPT), Constant Voltage, Floating System Voltage 12/24/36/48/Auto Max PV Input Power 1200W/12V; 2400W/24V 1500W/12V; 3000W/24V 3600W/36V; 4800W/48V 4500W/36V; 6000W/48V Max PV Input Voltage 150Voc Battery Voltage Automatic Recognition 12V System(DC8.7V-DC15.5V), 24V System(DC16V-DC31V) 36V System(DC 33V - DC 41V), 48V System(DC42V-DC64V) Overcharging Protection Voltage 12V System(16V), 24V System(32V), 36V System(48V), 48V System(64V) Limited Current Protection 80A 100A Max Efficiency ≥98.1% PV Utilization ≥99% AutoTemperature Compensation -3mV/2V/ºC Protection Function Temperature Protection 80℃ Fan-on Temperature >45℃ Fan-off Temperature