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SUNAPEX

SUNAPEX 20W 12V Solar Panel Battery Charger Maintainer, Portable Waterproof Solar Trickle Charger with Built-in Charge Controller, Cig Plug, Alligator Clips, O-Rings for Car, Truck,Tractor, Boat, etc

    • Based on 2,054 reviews
Condition: New
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$49.99 Why this price?

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Availability: 20 left in stock
Fulfilled by Amazon
Arrives Monday, Mar 3
Order within 4 hours and 50 minutes
Available payment plans shown during checkout

Size: 20W


Color: Black


Features

  • Battery Savior: Our solar panel is designed to charge and maintain 12V rechargeable batteries. Use it to charge and maintain infrequently used vehicles; boats; outdoor electronics; lawnmowers, and more. Ensure your devices start anytime and protect batteries from long-term discharge. Its also ideal for off-grid devices like electric fences; gate openers; water pumps; weather systems; cameras; etc. Compatible with most battery likes sealed lead-acid; lithium; LiFePO4; GEL; AGM; flooded; etc
  • High-efficiency Solar Panel: Our solar panel features monocrystalline cells. Compared to other polycrystalline and amorphous solar panels of the same size, our monocrystalline solar panel charges faster
  • No Overcharging, No Battery Drain: The solar panel includes a built-in controller that prevents overcharging. When the battery is full, the controller stops charging automatically and resumes when the voltage drops. Our solar panel system wont drain your battery
  • Visual Charging Status: The controller has 3 indicator lights: blue (sunlight exposure); red (charging); and green (battery full). Easily monitor the charging process
  • IP67 Waterproof: Our fully sealed solar panel system is IP67 waterproof, suitable for all weather conditions
  • Easy Installation and Portable: Lightweight and flexible, our solar panel can be effortlessly carried anywhere. Equipped with suction cups and carabiners, its easy to install on car windows or hang wherever needed
  • Worry-Free Warranty and Support: SUNAPEX offers a one-year warranty and lifetime technical support for our solar panels. Our 24/7 customer service ensures prompt responses. If youre unsatisfied or need technical assistance, feel free to reach out to us

Brand: SUNAPEX


Material: ETFE


Product Dimensions: 13.7"L x 1.5"W x 14.96"H


Item Weight: 1.06 Kilograms


Efficiency: 30% High Efficiency


Brand: SUNAPEX


Material: ETFE


Product Dimensions: 13.7"L x 1.5"W x 14.96"H


Item Weight: 1.06 Kilograms


Efficiency: 30% High Efficiency


Connector Type: SAE


Included Components: 1 X 20W Solar panel +1 X Cigarette lighter+1 X Alligator clip+1 X O-ring wire +1 X Manual


AC Adapter Current: 1.11 Amps


Maximum Voltage: 12 Volts


Upper Temperature Rating: 140 Degrees Fahrenheit


Maximum Power: 20 Watts


Special Feature: Built-in charge controller, visual charging status indicator, IP67 waterproofing, easy installation


Output Voltage: 12 Volts (DC)


Item Weight: 2.33 pounds


Manufacturer: SUNAPEX


Country of Origin: China


Item model number: SA_RXMPPT_30W


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Mar 3

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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  • Affirm Financing
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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Great for my solar Meshtastic nodes
Size: 20W Color: Black
This 20W solar panel has proven to be a reliable power source for my Meshtastic node. The built-in charge controller is particularly valuable for this application, preventing overcharging of the battery without needing additional components. I'm getting consistent power output even in partial shade, which is crucial for maintaining node uptime in less-than-ideal locations. The panel's physical construction is appropriately weatherproof - I've had it outdoors through several rainstorms without issues. The included mounting O-rings are sturdy and make it easy to secure the panel to poles or other structures. While the cigarette lighter adapter isn't particularly useful for Meshtastic applications, the alligator clips work well for connecting to standard battery terminals. For Meshtastic users specifically, I found the voltage output to be very stable, which helps prevent node resets. The 20W capacity is actually more than needed for a basic node setup, but this overhead is helpful on cloudy days or when running additional sensors. You'll want to add appropriate connectors for your specific battery setup, but the included wiring is of good quality and easily adaptable. One minor consideration is the somewhat limited length of the included cables, so factor in some extension wires if you're planning to mount the panel any significant distance from your node. Also, while the frame is sturdy, you might want to add additional UV-resistant coating if deploying in extremely sunny locations for long-term installation. ... show more
Reviewed in the United States on January 22, 2025 by CJ
    • Works great
Size: 20W Color: White
This solar panel keeps my Prius 12v battery going. I’ve lost 12v power before for various reasons and had been reproducible. With this in play my 12v hadn’t dropped like it did before. Works great on my rear window while I’m camped out or parked for awhile or while being stowed in the driveway for extended periods of time. Cheap and effective ... show more
Reviewed in the United States on February 21, 2025 by vk
    • Panel and accessories are wired backwards to SAE standards, leaving +12v on the exposed pin. Danger.
As the built-in charge controller comes with indicator lights, if find the LED on the 12 volt plug to be redundant and an energy drain. The unit comes with a blocking diode, which is good, but the plug LED is not blocked and uses juice 24/7 making a net daily charge very slow. I took the plug apart and cut out the LED. That way I can leave the charger plugged in continuously with little overnight loss. A magnetic strip would be nice to help anchor it to the vehicle. Seems well built and bullet proof. Slow to charge, discharged batteries, I don't there will be any problem in overcharging them. Revised: On further research it appears having the SAE plug reversed is often used, to the extent that SAE polarity reversal adapters are commonly available. I just figured out that the panel and the supplied accessories are wire backwards to SAE normal. This means for example, that when you attach the battery clips to your car battery, you risk having the exposed SAE pin, now positive, to ground out on any part of the car. This will cause sparks and possible burns and even explosion due to battery hydrogen. Plus the accessories won't work, possibly dangerously, with other SAE products like battery chargers. ... show more
Reviewed in the United States on September 4, 2020 by nut 4 squirrel
    • Works great!
Size: 20W Color: Black
Easy to install, keeps my problem batteries charged and ready to go.. Using it on a backhoe, dump trailer, and a rarely used F250. The truck and backhoe are both extra large battery capacity, and worked great.
Reviewed in the United States on January 12, 2025 by Robert McCartney
    • Very important !! DO NOT USE THE 10 VOLT MODEL
Size: 20W Color: White
The 20 volt model is superior to the 10 volt and works immediately. The lesser voltage is a waste of money
Reviewed in the United States on February 14, 2025 by DR. PHIL HARMONIK
    • Be carefull about which connector you use
Size: 30W Color: Black
Review Image by Joe C Joe C
Review Image by Joe C Joe C
Originally to get the immediate use from these (I ordered two), I simply attached the cigarette lighter connector to the panel and plugged it in. This worked perfectly. So recently I decided to use the direct battery connector so I could just unplug the panel when I didnt need it, but when I went to connect it, I noticed the red wire (positive) from the panel was connecting to the black wire side of the direct battery connector plug. This would result in battery current flowing backwards through the panel. I know this as I have a good sized solar setup on the house going to batteries. The lighter plug seems to be wired correctly as red connects to red. In all the other plugs for direct connection to the battery or the alligator clips to the battery, the connection would be red to black, which would be a bad thing. I could simply reverse the direct battery plug to connect the black to the battery positive and red to the battery negative, but people who dont know may find themselves dealing with a direct short, possibly burning up the panel or worse. I suppose most people would use the lighter plug connection, and that seems to be the only correct one, but I do wonder about the others. i did verify this with a multimeter as well, the panel is putting out 17 volts, and red is positive. ... show more
Reviewed in the United States on October 21, 2024 by Joe C Joe C

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