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MPPT solar charge controller

Designed for RV

MPPT, 12V/24V auto, 260W/520W max input power, 55V max solar voltage,LED display, Negative grounding, Bluetooth, IP54

20A MPPT solar charge controller


  • Innovative Max Power Point Tracking(MPPT) technology, tracking efficiency >99.9%
  • Full digital technology, high charge conversion efficiency up to 98%
  • LED Bar for easy to read charge state and battery information
  • Waterproof design, suitable for indoor or outdoor use
  • 12/24V automatic recognition
  • Liquid, Gel, AGM and Lithium battery for selection
  • The separate ports for remote temperature sensor, make battery temperature compensation more accurate.
  • Automatic over-temperature power reduction function
  • Four stages charge way: Fast, boost, equalization, float
  • Dual automatic restriction function when exceeding rated Charging Power and Charging Current
  • Android APP version for Bluetooth communication.
  • Modbus protocol based on RS-485 standard for remote communication need.
  • Negative grounding design.
  • Perfect EMC & thermal design
  • Full automatic electronic protect function
System Voltage 12/24V automatical recognization
Max Charging Current 20A
MPPT Charging Voltage <14.5V/29.0V @25℃
Boost Voltage 14.5V/29.0V @25℃
Equal Voltage 14.8V/29.6V @25℃ (Liquid, AGM)
Float Voltage 13.7V/27.4V @25℃
Low Voltage Disconnect 10.8-11.8V/21.6~23.6V
Reconnect Voltage 11.6-12.8V/23.2~25.6V
Overcharge Protect 15.8V/31.3V(Liquid, GEL, AGM)
Max Voltage on Battery Terminal 35V
Temperature Compensation -4.17mV/k per cell (Boost, Equal), -3.33mV/k per cell  (Float)
Charging target voltage 10.0~32.0V(Lithium, default: 14.4V)
Charging recovery voltage 9.2~31.8V(Lithium, default: 14.0V)
Low voltage disconnect 9.0~30.0V(Lithium, default:10.6V)
Low voltage reconnect 9.6~31.0V(Lithium, default: 12.0V)
Battery Type Liquid, GEL, AGM, Lithium
Max Voltage on PV Terminal(-20℃) 55V
Max Voltage on PV Terminal(25℃) 50V
Max Input Power 260/520W
MPPT Tracking Range (Battery Voltage+2V) ~ Voc*0.9
Max Tracking Efficiency >99.9%
Max Charging Conversion Efficiency 98%
Dimensions 164*107*32mm
Mounting Dimensions 155*64mm
Mounting hole size φ4mm
Ternimals 10AWG(5mm²)
Recommended cable 10AWG(5mm²)
Communication BLE
Grounding Common Negative
Ambient Temperature -20 ~ +55℃
Storage Temperature -25 ~ +80℃
Ambient Humidity 0~100%RH
Protection Degree IP54
Max Altitude 4000m