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SUNAPEX-Upgraded-20W-Solar-Panel-Battery-Charger-Maintainer, External Smart 3-Stages PWM Charge Controller, 12V Solar Trickle Charging Kit for Car, Marine, Motorcycle, RV, etc

by SUNAPEX
4.0 out of 5 stars 46 ratings

Price: $70.99 & FREE Shipping. Details & FREE Returns
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  • Free returns are available for the shipping address you chose. You can return the item for any reason in new and unused condition: no shipping charges
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20W Solar Panel
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  • 【Indication function】: The solar charger is equipped with LED indicator. It helps to better intuitive view of the working status and process. A single yellow light is on to indicate that the battery is charging, and a yellow light and a green light are on at the same time to indicate that the battery is full of electricity. No settings, simple operation.
  • 【Intelligent Charging and Maintenance】: External intelligent 3-stage PWM charging controller adopts fast charging, upgrade charging and floating charging. It generates at least 10%-20% more power than traditional controller. It is equipped with an industrial STM 8 microprocessor, which can intelligently control charging, prolong battery life, and charge and maintain batteries better in all seasons.
  • 【Protection Expert】: All-round protection of batteries. It is equipped with protection function against battery overcharging, overvoltage protection, short circuit protection, polarity reversal protection. The charging controller stops all work at night, does not consume electricity, and starts work automatically at daytime. Batteries can be maintained in any weather and season to prolong their service life.
  • 【Wide application】: 20-watt high-efficiency monocrystalline silicon solar charger with mounting brackets, which not only can better absorb sunlight and convert it into the required electrical energy, but also can generate electricity in any weather. For better maintenance. Widely used in automobiles, ships, motorcycles, RV, etc. It is also equipped with a USB adapter to charge the phone.
  • 【 Sturdy and durable】: The solar panel is made of light and strong ABS plastic frame. They are light and portable. The surface is made of tempered glass, with high light transmittance, durable, waterproof and sunscreen, maintenance-free, in addition, we also provide 12 months warranty and lifetime technical support. If you have any questions or problems about the product, you can contact us and we will solve it for you.

Frequently bought together

  • SUNAPEX-Upgraded-20W-Solar-Panel-Battery-Charger-Maintainer, External Smart 3-Stages PWM Charge Controller, 12V Solar Trickle Charging Kit for Car, Marine, Motorcycle, RV, etc
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  • Battery Tender 25 FT Extension Cable for Battery Charging and Maintaining by Deltran - 081-0148-25
Total price: $86.94
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Size: 20W Solar Panel

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Product description

Size:20W Solar Panel


20W Solar Charger Kit
Usage 1: Can charge 12 volt batteries or maintain batteries (with controller protection)
Usage 2: It can charge mobile phones, or 5 volt devices, etc.

As we all know, batteries will drain power naturally.

Efficient solar panels absorb intense sunlight and convert it into electricity for transmission to 12V batteries. 

The charger will not damage the battery and overcharge battery, please be assured that it will not consume battery power, 
because it is equipped with blocking reverse diode to prevent reverse discharge of the battery.

(Engineered for Battery Maintenance)


Outdoor Rated

Water proof completely and best and great for outdoor use with Rated at IP65.

Installation Location

It needs to be installed outdoors, in direct sunlight, preferably facing the south. The stronger the sun, the better the charging effect!

High Power Generation Efficiency

Converting light energy into electricity, Weak light power generation.

Back Current Protection

Prevent the battery from back current drain at night so that ensuring the battery stays fully charged.

Blue LED Indicator

1: The solar charger receives sufficient sunlight and the blue indicator lights up.
2: After the battery is connected, the blue indicator light also lights up.
3: The blue indicator light does not illuminate in the sun, indicating a short circuit and the line needs to be checked.
Plug & Play
Easy to use, each of them is equipped with SAE connector, easy & simply to disconnect and connect.

Type: Monocrystalline silicon
Wattage: 20W 
Amperage: 1.1A 
Volt: 12V
Dimensions: 16.5 X 15.4 X 0.8 in 
Weight: 4 lbs

Package included:
1 X Solar panel
1 X Solar charge controller
1 X Battery crocodile clip
1 X converter


Product information

Size:20W Solar Panel

Warranty & Support

Product Warranty: For warranty information about this product, please click here

Customer Questions & Answers

Customer reviews

4.0 out of 5 stars
4 out of 5
46 customer ratings
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Reviewed in the United States on June 19, 2019
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13 people found this helpful
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Reviewed in the United States on November 1, 2019
Size: 20W Solar PanelVerified Purchase
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9 people found this helpful
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Reviewed in the United States on September 14, 2019
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6 people found this helpful
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Reviewed in the United States on August 29, 2019
Size: 9W solar panelVerified Purchase
3 people found this helpful
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Reviewed in the United States on June 8, 2020
Size: 20W Solar PanelVerified Purchase
3 people found this helpful
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Reviewed in the United States on December 14, 2019
Size: 20W Solar PanelVerified Purchase
One person found this helpful
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Reviewed in the United States on November 4, 2019
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Reviewed in the United States on January 2, 2020
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