mppt solar charge controller 20A

Prostar SunSky MCK2024 LCD 12v 24v mppt solar charge controller 20A

MPPT Solar Charge Controller 20A | 12V/24V(Auto) | PV Voltage: 100Vdc

SKU: SunSky MCK2024 Categories: ,

Prostar SunSky MCK2024 LCD 12v 24v mppt solar charge controller 20A is an advanced maximum power point tracking (MPPT) battery charger for off-grid photovoltaic (PV) systems.

Prostar SunSky MCK2024 LCD 12v 24v mppt solar charge controller 20A adopts DC/DC converting technology and MCU technology. It can adjust the working point of the solar array intelligently to make the solar array realize the maximum power output.

Prostar SunSky series 12v 24v mppt solar charge controller 20A will measure the Vmp voltage of the panel, and down-converts the PV voltage to the battery voltage. Because power into the charge controller equals power out of the charge controller, when the voltage is dropped to match the battery bank, the current is raised, so you are using more of the available power from the panel.

  Product Features & Benefits  


  • Advanced maximum power point tracking technology with high tracking efficiency up to 99%.
  • Multiphase synchronous rectification technology ensuring peak conversion efficiency up to 98%.
  • CE, RoHS compliant approved, we can assist clients to pass various certifications.


  • Reverse polarity protection.
  • Electronic protection against overcharging, over-discharging, overload, and short circuit.
  • It has a current limiting charging function. When the power of PV is too large, the controller automatically keeps the charging power, and the charging current will not exceed the rated value.


  • 3-stage battery charging process for a rapid, efficient, and safe battery charging.
  • The use of high strength plastic shell design makes the shape beautiful, and the effective reduction of the product weight can save the transportation cost.
  • High definition LCD display function to check the device running data and working status, also can support modify the controller display parameter.
  • RS485 & RJ45 communication, we can offer communication protocol to convenient user’s integrated management and secondary development.
  • Support PC software monitoring and WiFi module to realize APP cloud monitoring. Click to See APP details


  • Three kinds of commonly used lead-acid battery (SealGelFlooded) parameter settings fcan be selected by the user, and the user can also customize the parameters for other battery charging.
  • Automatically detects 12V / 24V DC system voltages.
  • Natural cooling design is adopted to improve the reliability of the product and prolong the service life of the product.
  • Four types of load mode selection: ON/OFF, PV voltage control, Dual Time control, PV+Time control .

  MPPT Controller APP and PC monitor  


  MPPT Controller Details  

Prostar SunSky MPPT Solar Charge Controller

Prostar SunSky MPPT Solar Charge Controller Terminal

  MPPT Controller Display Information  


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    Charge ModeMPPT(maximum power point tracking)
    MPPT Mfficiency≥99.5%
    System Type12V/24V (Automatic Recognition)
    System Voltage12Vdc24Vdc
    PV Max. PV Input Voltage100Vdc
    MPP Operating Voltage Range12Vdc24Vdc
    Start Charging Voltage12Vdc24Vdc
    High Input Voltage Protection Point100Vdc
    Rated PV Power12Vdc24Vdc
    Selectable Battery  TypesSealed lead-acid batteries, Vented batteries Gel, NiCd battery
    (Other types of the batteries also can be defined)
    Charge Method3 stages charge: constant current(MPPT),constant voltage, floating charge
    Charge Rated Current20A
    LOAD Output VoltageBased on battery voltage
    Low Output Voltage Protection PointDefault 10.5V; Recovery 11V; It can be adjustable
    Max. DC Load Current20A
    Output Control ModeON/OFF mode, PV voltage control mode
    Output Control Set WayController button or PC software or APP
    LCD DisplaySystem type, PV voltage,charge voltage, charging current, charging power, temperature etc.
    Communication InterfaceDual RJ45,RS485, Wifi
    ProtectionYes (Over voltage, low voltage, over temperature, over load, Short circuit protection etc.)
    Cooling MethodNatural Cool
    Temperature Factor±0.02%/℃
    Temperature Compensation-3mV/℃/2V (default)
    Type of Mechanical ProtectionIP 43
    Measurement DxWxH (mm)148x220x59
    N.W. (Kgs)0.9