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JJN Solar Charge Controller 20A Solar Panel Battery Controller Intelligent Regulator 12V/24V/36V/48V PWM Fit for 100w-500w Power with Adjustable LCD Display Dual USB Port

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$19.99

$ 9 .99 $9.99

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About this item

  • 【Solar Charge Monitor】The solar charge controlers compatibility with 12V 24V 36V 48V system. Discharge Current is 20A, It helps you manage the working of solar panels and battery in solar systems automatically with the built-in industrial microcontroller. Dual USB output 5V/2A to support mobile phone charging.
  • 【SAFE TO USE】This solar charger controller is equipped with overcurrent protection, short-circuit protection, inverse connection protection, low voltage, and overcharge protection, and have fully 3-stage PWM charge management. Smart LCD display shows the charging status and battery status to make you more assured of charging. Charge controllers for solar panels should connect the battery first, then the solar panel, and finally the load.
  • 【LCD Display】Comes with a display that can clearly indicate the status and data, solar controller can be conveniently switched modes and parameter configurations.
  • 【Battery Type】Adaptable to User, Flooded, AGM, GEL, LifePO4, Lithium, and other customized battery types. For protecting the lifespan of your battery, once the voltage of the battery is out of range, the solar controller will turn off automatically.
  • 【WARRANTY】 12-month warranty and lifetime technique support. If there is any problem, please contact us through Amazon, we will arrange a refund or a replacement.



4.0 out of 5 stars Best Sellers Rank
  • #305,649 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
  • #277 in Renewable Energy Controllers
Batteries required No Included Components 1 x solar charge controller, 1 x user manual

Product Description

solar charge controller 12V

INSTALLATION

1. Q: How to install the solar controller ?

A: Connect the battery, solar panel, and the load (in proper sequence)

2. Q: How are the wires connected to the controller?

A: Unscrew the screw, fit wire in small hole and screw in to tighten it up

CONNECTION STEPS

charge controller 20a

Make sure the battery has sufficient voltage for the controller to recognize the battery before the first installation.

1.Connect the battery to the solar controller, the solar charge controller automatically recognizes the voltage.

2.Connect the solar panels to the charge regulator.

3.Connect the Load to the solar charge controller( optional ).

FEATURES:

1. Most parameters displayed explicitly.

2. PWM charging mode with 3 stages( float,absorption,and equalized).

3. Adaptable to Sealed, GEL, Flooded, and other customized battery types.

4. Auto-detect battery voltage or maintain a fixed voltage.

5. All working parameters can be reset, saved, and transferred to a computer or other terminal equipment.

6. Various control modes for the load.

7. Besides regular input, output, and battery protection, protection of over-current from the solar panels are applied.

charge controller for solar panels

Efficient, Stable, and Safe Charging

  • Utilizing smart PWM technology, the charge controller provides 3-stage charging (Float,Absorption and Equalization) to protect the battery.
  • It also provides multiple batteries, controllers, and PV electronic protections to ensure charging and user safety.

solar charge controller 12v

Compact and Lightweight

  • This PWM Controller is compact and lightweight, making it perfect for applications with limited space.
  • With a weight of only 0.88lb, a height of 1.42 inches, and a width of 3.46 inches, this controller is ready to be installed in small spaces.

24 volt solar battery charger

Easy to Operate and Use

  • The Controller will Automatically recognize battery voltage, but battery type needs to be set by yourself, Especially lithium batteries, Please set the correct battery type when first connecting.
  • Dual USB output, the maximum current of 2A, to support mobile phone charging.

20A Solar Charge Controller

Battery Voltage/System Voltage 12V/24V/36V/48V Auto
Max PV Open Circuit Voltage 100V
Self-consumption ≤30mA
Loop Voltage Drop ≤0.3V
Battery Type User, Flooded, AGM, Gel, LifePO4, Lithium
USB Output 5V/2A×2
Operating Temperature -4℉~+122℉ (-20℃~+50℃)
Protection Category IP32
Terminals 12AWG/3.332m㎡
Humidity 95%, no-condensing
charge controllers for solar panels

Abad Khan
Reviewed in the United States on January 18, 2025
This product works well but you need to fix it beofre installation by professional. Its not that much easy to use, quality is average.
Mike Gee
Reviewed in the United States on August 20, 2024
This solar charge controller has been fantastic. It’s easy to install, highly efficient, and manages battery charging perfectly. It provides clear readings and has improved the performance of my solar setup. Highly recommend for anyone looking to optimize their solar system.
Mitch
Reviewed in Canada on June 23, 2024
I have a few PWM's I have tried and this one's, my favorite. It works well and I love how it functions for 12v 14v 36v and 48v. I also like how it shows you kWh in and out. It's a bit bigger than some of the others but just by a tiny amount. I'm considering by another one for a friends solar e-bike. I use them to charge a bike on the go.
Daniel
Reviewed in the United States on June 15, 2024
Documentation reads like something out of Google Translate; hard to understand. The controller itself seems pretty good so far...
T-GroveBob
Reviewed in the United States on June 14, 2024
So, I have had bad experiences with solar charge controllers that said they work with 36V systems, so I wasn't expecting much. I will say I was quite surprised in the function and apparent quality of this unit. It did take a little navigating of the menu to get it properly set for a 36V flooded lead acid system, but it did work. So far it seems to being doing what it should so now only time will tell. This controller is rated for 10A, but I am using it with a maximum output of 5A so hopefully that is enough margin.
Patrick USN Ret
Reviewed in the United States on October 9, 2024
My favorite part of this JJN 30 amp charge controller is the bluetooth feature. I can check the status any time I want and it's good for about 15 feet away from the unit. The only drawback it has is the programming is 12 volt. This makes it hard to set for a 48 volt operation. I had to use it in lead acid battery mode to control the load disconnect and reconnect as I use it to control a 5 PIN relay to turn my battery charger on and off. (LVD ON / LVR OFF)
Audioamplified
Reviewed in the United States on July 22, 2023
It's been hooked up for a little over a month. I have 2-24v 200watt panels in series that have a 82volt Voc, and run at 5-6 amps in full sun. This little 10 amp unit never gets hot, and does what it should. It was a perfect low cost solution for the 2 oddball panels in my array.
Ruben Gonzalez
Reviewed in the United States on February 16, 2023
Being fairly new to Solar charging systems there is a lot I still have to learn. while this unit is very informative you have to take the time to find out exactly what battery you are trying to charge. Mine is a lifepor4 lithium 100 amp 4 cell . But you can have any lead acid,gell,seal,and lithium. Once you input that information the unit does the rest! It sets All the nessasery parameters for each batter type. And there's is a lot from how much sun ray energy you can have (input) watts,amps,volts, charging start and shut off points , temperature in Celsius is the only drawback. i just use the 9 to 5 plus ad 32 rule . It also has how much energy you use up and how much power is in battery. I really like that it has a clearly label lifepor4 setting destination this is very important not all solar chargers do. I have mine set up and it is working better then expected very happy with purchase.RG.
Kim Suzanne
Reviewed in the United States on October 4, 2023
This unit stopped working after only 4 months. It no longer charges when batteries voltage goes lower. Warranty says one year and yet when I attempt to talk to customer service, I am told that I need to contact the manufacturer whose number that they gave me is disconnected. On the listing it states: 【WARRANTY】 12-month warranty and lifetime technique support. If there is any problem, please contact us through Amazon, we will arrange a refund or a replacement. !!!!????
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