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P20L LCD 20A PWM Solar Panel Regulator Charge Controller with LCD Digital Display and User Adjustable Settings
0.5 lbs

WindyNation P20L 20 Amp Solar Charge Controller with LCD Display and User Adjustable Settings

WindyNation’s P20L solar charge controller is a premium grade PWM solar controller. The digital display provides solar system information and also serves as a user interface for adjusting the charge controller’s settings. It is the perfect solar charge controller for an RV, boat, small cabin or any other off-grid installation, where user configurability and system information is important.

  • Compatible with 12 and 24 volt batteries. Compatible with AGM (sealed lead acid), gel, flooded, and lithium batteries.
  • WindyNation P20L PWM 20 Amp solar charge controller prevents battery from being overcharged and damaged by the solar panel
  • LCD digital display provides system information and allows user configurability
  • System settings are user adjustable by using the MODE and UP and DOWN buttons
  • Overload, short circuit, and reverse polarity protected


Click on Tech Specs tab above for more detailed information


What system information will the P20L LCD provide?

1. Battery voltage

2. State of Charge (SOC) of the battery

3. If the solar panel is producing voltage

4. If the solar panel is charging the battery

5. If the LOAD feature is ON or OFF

What can be adjusted and configured with the P20L?


1. Battery Float Voltage (the maximum voltage the solar panels will charge the battery up to)

2. Low Voltage Reconnect (The battery voltage at which a DC Load will reconnect to the battery)

3. Low Voltage Disconnect (The battery voltage at which a DC Load will disconnect from the battery)

4. Load Timer Control (Used to to set how long a DC load is turned ON)

5. Battery Type (Selections are AGM, Flooded Lead Acid, Gel, and Lithium)


Technical Specifications

Rated Current Charge 20 Amps
Rated Load Current 20 Amps
Typical Idle Consumption At idle < 5mA
Maximum Solar Input Voltage 50 V DC
Rated Working Voltage 12 V DC or 24V DC Battery System
Floating Charging Voltage (adjustable) 13.8 V DC 27.6 V DC
Low Voltage Protection (adjustable) 10.7 V DC 21.4V DC
Low Voltage Recovery (adjustable) 12.6 V DC 25.0V DC
No Load Loss ≤13mA
Loop Voltage Drop ≤200mV
Temperature Compensation -4.0 mV/Cell&#176C

Physical Specifications

Parameter Value
Dimension (L x W x H) 88 mm x 160 mm x 37 mm (3.46" x 6.30" x 1.46")
Weight 8.1 oz (360 g)
Operating Temperature  14F to 140F  (-10C to 60C)
Operating Humidity ≤90% relative humidity (non-condensing)
Wire Size Up to 8mm2 (8AWG)


Click on Owners Manual tab above for more detailed information

Download the Owner's Manual and learn about installation, safety and configuration options available on your Charge Controller.