20 Amp MPPT Solar Charge Controller, 12V/24V/48V

● 20 amp MPPT solar system charge controller available in three voltage 12V/24V/48V options ● Battery voltage identification range with 12V (DC 9V-15V), 24V (DC 18V-30V), 48V (DC 36V-60V), MPPT operating voltage range with 12V (DC 18V-150V), 24V (DC 34V-150V), 48V (DC 65V-150V) ● Three charging methods: constant current (MPPT), equalize charge, float charge ● MPPT charge controller is widely used in solar panels, lithium ion battery, wind turbine
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The solar panel controller is also lightning-proof and can generate electricity with a high voltage input for low light. 20A MPPT solar charge controller for sale, compatible with 12V, 24V, and 48V systems, featuring automatic recognition for seamless integration. Maximizing power conversion efficiency, this controller offers three-stage charging: constant current MPPT, delivering an impressive efficiency of 96.50%. Charge regulator static power consumption is minimal at just 2W, while the photovoltaic module utilization rate reaches an outstanding 99.97%, ensuring you get the most out of your solar panels.

20 amp solar charge controller feature


  • Extra large smart screen: Comprehensive display of power generation information
  • Peak power tracking technology: Higher charging efficiency
  • Various types of batteries: Factory default lead-acid batteries, can be adjusted according to the actual situation of equalization and float charging voltage
  • Thermal performance: Dual intelligent temperature control fans
  • Efficient tracking chip: Higher conversion efficiency


  1. LED Display
  2. Charge Indicator
  3. Menu Bar Button
  4. Flip Down Button
  5. DC Output Indicator
  6. Confirmation Button
  7. Flip up Button
  8. Junction Box Cover
20 amp mppt solar charge controller detail

MPPT Solar Charge Controller Connection Diagram

MPPT solar charge controller connection diagram

Rated System Voltage 12/24/48V (automatic recognition)
Rated Current 20A
Current Limiting 22A
Battery Voltage Recognition Range 12v(DC9-DC15V);24v(DC18-DC30V);48V(DC36-DC60V)
MPPT Operating Voltage Range 12V(DC18V~DC150V); 24V(DC34v~DC150V); 48V(DC65V~150V)
Maximum Photovoltaic Cell Input Power 12v(280W);24v(550W);48V(1100W)
Input Low Voltage Protection Point 12V:DC16V;24V:DC30V;48V:DC60V
Input Low Voltage Recovery Point 12V:DC18V;24V:DC34V;48V:DC65V
Limit Input Voltage DC170V
Input Overvoltage Protection Point DC175V
Input Overvoltage Recovery Point DC170V
Charging Method Three stages: constant current (MPPT, equalization charging, float charging)
Static Power Consumption 2W
Efficiency 96.50%
Photovoltaic Module Utilization Rate 99.97%
Float Voltage (customizable) 12V (13.75V); 24V (27.5V); 48V (55V)
Equalizing Voltage (customizable) 12V (14.2V); 24V (28.4V); 48V (56.8V)
Recommended PV Module Voltage 12V (DC 18V-60V); 24V (DC 36V-72V); 48V (DC 72V-144V)
Temperature Compensation -3mV℃/2V
Temperature Protection 85℃
Temperature Rise Protection 80℃ or more to reduce power output
Protective Function Photovoltaic array short-circuit, over-voltage, over-current reverse connection protection, battery over-charging, reverse connection protection, under-voltage protection
Working Temperature -10℃ ~ +45℃
Humidity 0~90% RH (no condensation)
Altitude 0~3000m
Security Level CE, PSE, FCC, EMC
Mechanical Protection Class IP21
Selectable Battery Type Lead-acid battery (Factory default), colloidal batteries, liquid batteries, lithium batteries,customize other types of battery charging
Product Size 218*154*65 mm

PDF computingSolar Mppt Charge Controller User Manual

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Q1. What is MPPT technology, and how does it benefit my solar system?

MPPT stands for Maximum Power Point Tracking. It optimizes the power conversion process by continuously adjusting the solar panel's operating point to maximize power output, resulting in increased energy harvest and efficiency.

Q2. Is this charge controller compatible with all types of solar panels?

Yes, typically, this controller is compatible with most types of solar panels, including monocrystalline, polycrystalline, and thin-film.

Q3. Can I use this charge controller for my off-grid solar system?

Yes, this charge controller is suitable for off-grid solar systems, providing efficient and reliable charging for batteries in remote locations.

5.0 1
Write your own review Close
Alex | 5/24/2024 3:49 AM
Display shows clearly
I've been using it for a while now, the LCD display is very convenient to show the battery voltage, charging current and working status in real time.