PWM Solar Charger Controller 20A

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Model Sohigh PCB-20A
Brand Sohigh Solar
Voltage(V) 12/24V
Product Origin Guangzhou,China
Capacity 20A
Product DetailParameterDatasheet

Feature of the PWM solar charger controller

Accurate Monitoring

Adopting an upgraded 32-bit chip, this 30 Amp solar charge controller enhances the data processing ability to trace data faster and monitor data more precisely. The LCD screen and settings button allow you to customize parameters and monitor the PV system in real-time.

Easy To Install And Use

There are polarity (+/-) icons on the charge controller for easy wiring. It comes with 6 spade terminals for safer connectivity without shortening the circuit caused by the bare copper wires contacting other terminals.

Works With Popular Batteries

This solar controller works with LiFePO4, Ternary Lithium, Gel, Flooded, AGM, and Sealed batteries. Supporting 12V (up to 450W) and 24V (up to 900W) PV systems, it can be widely applied on motorhomes, sheds, boats, water pumps, and more.

Intelligent PWM Charging

Supports smart 3-stage charging (Bulk, Float, and Equalization) for Lead Acid Batteries and 2-stage charging (Bulk and Float) for Lithium batteries, which can regulate the flow of electricity to expand the battery's lifespan. For a dormant lithium battery, this PWM solar controller can send low current to activate it.

7-Point Safety Protection

This PWM controller is equipped with dual MOS circuits to prevent reverse current. It protects against reverse polarity, battery overcharge, battery over-discharge, over-temperature, and short-circuiting. It also provides self-recovery protection for your PV system.

Model :

Sohigh PCB-20A

Sohigh PCB-30A

Rated Charge Current



Voltage Range of Battery


   Max Open Voltage of Solar Panel


System Rated Voltage

12/24V Auto Rocognized

   Temperature compensation coefficient


Operating Temperature

-20℃~+55℃(to run at full rated current continuously)

Storage Temperature


Working Humidity

95%,no condensation

   Photovoltic module utilization ratio

≤10mA; 13mA

IP code



PCB PCB terminal, I<10mm'

Battery Type

GEL,SLD,FLD and Usr (default)



Man-machine interface

LCD,2 Buttons

Light control voltage


Charge loop voltage drop


Man-machine interface


PV voltage


Charging mode*

PWM Multi-stage(bulk,float,absorption,equalized)

Load working mode

Regular control mode;

Light control with switch-off point at night and switch-on point before dawn

Light control mode

PWM Solar Charge Controller Datasheet-Sohigh Solar.pdf

Get In Touch


undefined   Email:
undefined   Tel/Whatsapp/Wechat: +86-136-6893-6561
undefined   Address:Room 2801, Room 2802-2, Block B,Tianxiu Building,Guangzhou,Guangdong


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