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PWM Solar Charge Controller

PWM solar charge controller is economical and safe regulator for all kinds of off grid solar system.

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Product Details

PWM solar charge controller

1.Product introduction of the PWM solar charge controller

PWM solar charge controller is economical and safe regulator for all kinds of off grid solar system. 24/48V-40A solar controller can connect to 2000W solar array maximum and generate 40Amp current to charge battery banks.

2.Product parameter (specification) of PWM solar charge controller



Nominal system voltage

24/48V auto.detection

Rated charge current


Rated discharge current


Max. PV input power


LCD screen display

Battery voltage, PV charge current, Load discharge current, total PV charge Ah, total PV discharge Ah, the setting of constant voltage charging, the setting of low voltage disconnect, the setting of low voltage reconnect


Menu, load(on/off), up, down

Float charge


Constant voltage charge


Low disconnect voltage


Low reconnect voltage


Case protection







2 years


Yellow box: 12pcs/CTN, 58.5*23*45cm

Packing list

1*40A Solar Charge Controller

1*User Manual

3.Product feature and application of PWM solar charge controller

-24/48V automatic recognition.

-High efficient series PWM charging, increase the battery lifetime and improve the solar system performance.

-Use OSFET as electronic switch, without any mechanical switch.

-LCD display, all adjustable parameter. 

-Protection: reverse polarity, over current, short circuit, over temperature, lightning, current drawback.

-Gel and lead acid sealed battery type optional.

-CASE protection: IP22


1 How many employees does your company have?

Currently, we have about 120 employees.

2 What is your yearly revenue?

It's about 80 million RMB, 15 million US dollars. The average growth of our annual revenue is about 10%.  

3 What is your production capacity for inverters?

It's about 200,000 units per year.  

4 What products do you offer?

"CARSPA sells electric power related products, such as off-grid inverters, charge controllers, and battery chargers, and we also provide services for solutions to customer's unique situations and requirements.

5 Tell me more about your inverter. What are the major function?

Depending on the lines of products, our inverters invert DC into pure-sine-wave or modified-sine-wave 110V or 200V AC. They offers many safety features, such as, power overload protection , over-temperature protection, over-voltage protection. Also, we have other features to relieve human errors, such as short circuiting, and reverse polarity.

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