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SUNAPEX

20W Solar Car Battery Trickle Charger & Maintainer, 12V Waterproof Solar Panel Trickle Charger, Portable Solar Panel Kit for Car, Boat, RV, Trailer, Motorcycle, Snowmobile, etc

    • Based on 1,453 reviews
Condition: New
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Availability: 15 left in stock
Fulfilled by Amazon
Arrives Sunday, Jun 2
Order within 17 hours and 34 minutes
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Size: 20W


Color: Black


Features

  • Ungraded Intelligent ControllerWith upgraded intelligent charger controller and charging algorithm with maintenance generates more than 20%-30% more power than other solar charge controllers. Fully protect the battery and prevent it from over-charge, over-discharge, over-voltage, over-current, over-load, short circuit, reverse polarity, and over-temperature.
  • Charge Visualization12v solar battery maintainer has 3 color LED indicators that help visually monitor the working status. Solid blue indicates (receiving sunlight) and the (output normal). Solid red indicates connected to the battery and (charging). Solid green indicates the battery is (full charge). No lights indicate a (short circuit occurred).
  • Easy to Install and UseThis solar panel car battery charger is lighter, thinner, and has a longer service life. The solar trickle chargers come with 3 different SAE cables, plug and play (Red is positive, Black is negative). Also features snaps and suction cups for easy installation and cleaning.
  • Waterproof & DurableIP67 waterproof 12v solar battery charger can withstand all severe weather conditions such as strong winds, thunderstorms, blizzards, and hail, and can withstand wind pressures up to 2400Pa and snow loads up to 5400Pa, making it ideal for outdoor or winter use.
  • Widely UsedThe solar battery charger is compatible with 12v batteries, charging and maintaining such as sealed lead-acid, lithium, LiFePO4, Gel, Flooded, and AGM batteries. The 20w solar battery charger & maintainer kit is perfect for car, boat, tractor, trailer, truck, RV, generator, shed, pump, snowmobile, etc.
  • Upgraded ETFE materialThe solar battery charger adopts ETFE material can collect sunlight from different angles, and the fine layout can make secondary use of sunlight refraction. The light transmission rate up to 95%, providing 30% high photoelectric conversion rate. Its built-in aviation grade impact resistant material can effectively resist impact.
  • Service and WarrantyThe quality of the SUNAPEX solar trickle charger is guaranteed by CE/ROHS certification and provided lifetime technical support and 12 -month warranty. Please feel free to contact us if you have any questions or doubts, we will respond within 24 hours.

Brand: SUNAPEX


Connectivity Technology: SAE


Connector Type: SAE


Compatible Devices: 12v battery


Compatible Phone Models: SAE


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


Color: Black


Input Voltage: 18 Volts


Mounting Type: Wall Mount


Wattage: 20 watts


Product Dimensions: 14.4 x 13.4 x 0.06 inches


Item Weight: 2.38 pounds


Manufacturer: SUNAPEX


Country of Origin: China


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Sunday, Jun 2

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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Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • So far good quality
Size: 10W Color: Black
Review Image by c'est la vieπŸŽ‰πŸ˜˜ c'est la vieπŸŽ‰πŸ˜˜
Review Image by c'est la vieπŸŽ‰πŸ˜˜ c'est la vieπŸŽ‰πŸ˜˜
Review Image by c'est la vieπŸŽ‰πŸ˜˜ c'est la vieπŸŽ‰πŸ˜˜
Review Image by c'est la vieπŸŽ‰πŸ˜˜ c'est la vieπŸŽ‰πŸ˜˜
I've been using the SUNAPEX 10W Solar Car Battery Trickle Charger & Maintainer for a while now, and it’s a great way to keep the car battery charged, especially if you don't drive it every day or if you live in a cold place. The solar panel is lightweight and portable, so you can easily take it with you wherever you go. It's also waterproof, which is a big plus. The charger is easy to use. Just connect it to your car battery and leave it in the sun. It will automatically start charging your battery. The charger also has a built-in overcharge protection feature. I've used the charger to keep my car battery charged when is cold outside and I don’t go out, and it's worked perfectly. ... show more
Reviewed in the United States on November 4, 2023 by c'est la vieπŸŽ‰πŸ˜˜ c'est la vieπŸŽ‰πŸ˜˜
    • Good product
Size: 20W Color: White
So far so good. Attached it to my RV battery as per the instructions and it seems to work. Not that much power, but enough to extend battery life when I don’t want to run a generator. The suction cups are pretty marginal, but the panel works well.
Reviewed in the United States on December 8, 2023 by Amazon Customer
    • Easy to install but be aware that it would be easier to install if suction cups were taller.
Size: 10W Color: White
Honestly it works so that is the main thing. The only improvement they should make to it is to provide taller suction cups to attach it so it wouldn't have to bend backing material because circuit box plastic gets wedged between backing material and glass of windshield. I don't actually attach suction cups to glass because I don't want to stress backing material since it has the solar panel on it. Kind of an obvious error in fitment that would be caught if they had tried to install it on a glass surface. Still charging works great so that is the most important point to me. I would give it 5 stars on easy to install if it had taller suction cups. I just rest it against the propped open hood to charge and don't use the suction cups to hold it. Those using it for long term use may find this to be a reason to look for another model or think about dealing with the too short suction cups issue?? You've been warned about an issue on an otherwise great product. Product works great in actual use trickle charging battery. I have the 10W model. I don't know if all size panels have the same suction cup issue or not? ... show more
Reviewed in the United States on January 21, 2024 by Carguy100
    • Works are expected...
Size: 10W Color: White
Using this to float a Sealed Lead Acid battery on my generator. Works as designed. The 3 status lights on the solar charge controller are helpful (1: Under the sun, 2: Charging, 3: Charged)
Reviewed in the United States on March 4, 2024 by Steve
    • Great Solar Charger
Size: 20W Color: White
Review Image by Invoxicated Invoxicated
My experience with solar chargers started about a year ago. I had a 5 watt charger that a friend had given me for my generator battery. I never used it for that. Fast forward one year later - I have since retired and my truck sits in my driveway a lot more than it used to. My battery kept going dead so I tried the 5 watt charger and waited a week to see if it either worked or if my battery was dead again. To my surprise it worked! My truck started right up but the problem was that the old battery was 4 years old at that point and I knew that this was going to keep happening unless I either went back to work or I was going to keep the solar charger on my truck battery. The sun and the heat warped my 5 watt charger so I needed a new one. I saw this one and it was on sale at the moment I purchased it here on Amazon. You should know that any solar charger you buy will be subjected to extreme heat and light so please keep that in mind when you buy one of these things. I recently went to remove mine during a hot afternoon and nearly burnt myself because the unit was so hot after being on my dashboard in the midday sun in front of my dashboard heat shield (see pic). 20 watts seems to be the limit for a solar charger before it needs a separate controller to regulate the flow of power to what whatever it is you're charging. Also for those who care at 20 watts the charger is putting out about one amp of DC electricity which would be the equivalent of a trickle charger output from a battery tender. I like this unit because the solar panel is flexible instead of being rigid or made from hard plastic like my 5 watt charger. The holes in each corner give you the flexibility on how you want to position for maximum sunlight exposure. In my case I laid the panel down on my dashboard and put my big sunshade behind it to protect the dashboard and interior of the truck from the heat and sun fade. The sunshade keeps the panel propped up for best sun exposure. I didn't write the review until I tested it out the same way I tested the 5 watt panel, by waiting a week to see if my new battery (Northstar AGM- NOT RECOMMENDED due to it going dead within 10 days of inactivity and VERY poor warranty support-see my review) would be able to start my truck (Nissan Murano). The Murano has a 3.5 liter engine, not a big engine by any standard yet I have to keep a solar charger on it in order to prevent the battery from draining on me. The charger has been on my truck for about 3 weeks now and whenever I decide to go for a drive my truck starts right up with no issues. I disconnect the charger before I start the truck and when I come home I reconnect it. A bit of a pain in the neck but it guarantees that my truck will always start no matter how long it sits in my driveway I can see this charger might have other uses too. It could be used in a camping situation to charge battery packs or an emergency situation as well. The only minor quibble I have is that the panel does come with a small controller attached to the back to let you know that the charger is charging. There are 3 lights on this little controller. One to let you know that it's receiving sunlight so that it can function. Another LED to let you know that it's charging whatever battery you have it attached to. Then there is a third LED, a green one. Once an item is fully charged the green light is supposed to come on. I have yet to see this green light come on but the charger does work as it's intended. Update 5-29-21- The green light on the controller does appear to function! I noticed the other day after having my truck sitting with the charger attached the green light on the back of the solar panel was on! Apparently my battery must have been low and it took time for the charger to top off the battery. Highly recommended -------------------------------------------------------------------------------------------------------------------------- I rely heavily on reviews when I make purchases so I put some time into reviewing everything I buy on Amazon for personal or business use so I can help other people considering that item. If you found my review helpful, please consider hitting the "helpful" button below when it asks if the review is helpful. Thank you! ... show more
Reviewed in the United States on March 30, 2021 by Invoxicated Invoxicated
    • Great for keeping that car in your backyard charged!
Size: 10W Color: White
I have been researching, debating, shopping, reading reviews for a very long time and felt like I found what I was looking for in this 10W charger so I purchased a few months ago. I buy and sell a few cars as a hobby and in some cases the car sits a very long time before I get around to selling. I do use pug in battery maintainers on motorcycles and cars in a garage that are close to AC power but I needed a good solar charger as I have a few cars in my back yard that I try and start and run but during winter months I forget, This 10w version is perfect. I check the cigarette lighter, 12v outlet in my car / suv to make sure the inside 12v outlet does not turn off with key ( Use a cell phone charger with led light to check yours ) but I prefer to use the inside the car plug simply so the unit does not sit in the rain, as I understand it has no issue with rain but I siply keep it in the front window and it works fine. The #1 thing I needed with a charger is that it had to have the built in maintainer "smart" electronics as I did not want to overcharge my battery. Looks like many other small solar charges does not have that smart box but this unit does! I was surprised to the build quality as it looks and feel better that I was expecting. I have an older SUV that the battery was getting old and weak and failed to start. I did charge the old battery with a plug in charger but I then connected this solar charger and the car sat but this unit kept the battery charged, The 10w version I find perfect for keeping car batteries ready to crank! Happy With the product! ... show more
Reviewed in the United States on February 25, 2024 by Inlet Sound

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