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Charge Controller 12 24V Auto

CARSPA charge controller 12 24V auto is one of the highest efficiency PWM solar controller in the world with good reputation in EU.

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Product Details

charge controller 12 24V auto

1.Product introduction of the charge controller 12 24V auto

CARSPA charge controller 12 24V auto is one of the highest efficiency PWM solar controller in the world with good reputation in EU. The charging method is 3 stage that can prevent battery from over-charge or over-discharge.

2.Product parameter (specification) of charge controller 12 24V auto



Nominal system voltage

12/24V 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: 18pcs/CTN,41.5*40*27cm

Packing list

1*40A Solar Charge Controller

1*User manual

3.Product feature and application of charge controller 12 24V auto 

-12/24V automatic recognition.

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

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

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

-Gel and lead acid sealed battery type optional. 
-Big LCD display,all adjustable parameter. 
-Common positive grounding design

-CASE protection: IP22

-CE, ROHS certification.


1 When was your company founded?

CARSPA was founded in 2004. We have been manufacturing  power inverters, solar charge controllers, battery chargers for over a decade, 13 years exactly.   


2 Where is your factory located?

Our factory is located in Wenzhou, Zhejiang Province. It's about 1100 kilometers from Shenzhen. There are direct flights and high-speed trains between Wenzhou and Shenzhen, two and a half hours by plane and 8 hours by high-speed train. Or, if you are coming from Shanghai, it is only about 450 kilometers, 1 hour flights, 3 hours and a half hours high-speed train ride. You are very welcome to visit our factory. If you are interested in, I will be more than happy to assist you in making the arrangement.

3 How many workers does your company have?

Currently, we have about 120 workers.

4 What is your yearly revenue?

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

5 What is your production capacity for solar charge controller?

It's about 300,000 units per year.

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