ECO-WORTHY 10W Solar Car Battery Charger Maintainer 12V Waterproof Solar Panel Portable Solar Trickle Charger for Car Truck B

4.2 | 9,393 ratings

Price: 23.99

Last update: 01-07-2025

About this item

????【Function】Suitable for keeping vehicles/boat battery charged during the weeks unused. No need to disconnect the battery or have someone start the vehicle periodically. The indicator light on the back can observe the charging state. And it’s waterproof, you can safely use it outdoors(After experimental test).
????【Protection】The 10w monocrystalline solar panel uses trickle charging to charge the battery without causing overcharging. Built-in blocking diode prevents reverse charging without extra maintenance at night. Works even on cloudy days. As frosted surface, the panel doesn't need film protection anymore.
????【Version Upgrade】Because of PCB upgrade and the addition function of reverse and overcharge protections, it may not be possible to test the open-circuit voltage. Don't worry, the panel is still working normally.
????【Easy to Install】Equipped with SAE cable, just plug the cigarette lighter into the port or connect the battery terminal posts with the alligator clip, and the connection can be completed within 3 minutes! Suitable for car, truck, boat, lawn mower, motorcycles, trailer, dump trailer, tractor, RV, van, camper, ATV, utility vehicle Battery etc.
????【Warranty】1 year warranty. If you have any questions, please contact us. Your suggestion helps us improve!

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Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.

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

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Top reviews from the United States

Amazon Customer

Charges my battery on my snow plow

Reviewed in the United States on November 18, 2024

Very easy to use and set up. Does not need a lot of sunlight to work. Works when it’s overcast. Trucks charge so it’s not fast, but maintains a consistent charge

BIG D.

Great product ????

Reviewed in the United States on May 27, 2024

It will not charge a dead battery, it is not intended to. It simply keeps a good battery charged on vehicles that sit without use for a long time.
The product itself is great, I bought 3 of them.
What happened is, the first 2 I bought were delivered but at 2 different prices ????so I called Amazon and was told they can't help me. So I ordered 2 more at a discount for buying 2 and I returned the higher priced 1 still new in the box. Did not seem to me to be the most efficient way to handle it but, that is humans!

The 2nd problem was that the delivery person left the package OUTSIDE instead of INSIDE the safety of a closed in screen porch ????. I live in a ground floor house with no steps but yet the package was left outside in plain view from the street and in any possible weather. They simply ignored my delivery instructions and all forms of common sense and respect. If I delivered, I would put things inside a porch whenever possible just for common sense and respect! I can't understand this way of thinking, can you ???????

siburmax

Exactly as advertised

Reviewed in the United States on August 30, 2024

I recently purchased the 10W Solar Battery Charger, and I am extremely satisfied with its performance. The charger is suitable for keeping vehicles/boat batteries charged during weeks of disuse, without the need to disconnect the battery or have someone start the vehicle periodically. The indicator light on the back allows me to observe the charging state, and it’s waterproof, making it safe to use outdoors. The 10W monocrystalline solar panel uses trickle charging to charge the battery without causing overcharging, and the built-in blocking diode prevents reverse charging without extra maintenance at night, ensuring protection against damage. The panel works even on cloudy days, making it a reliable source of power. The upgraded PCB and addition function of reverse and overcharge protections ensure that the panel is still working normally, even if it's not possible to test the open-circuit voltage. The charger is easy to install, equipped with an SAE cable that can be plugged into the cigarette lighter port or connected to the battery terminal posts with the alligator clip. The connection can be completed within 3 minutes, making it suitable for use in cars, trucks, boats, lawn mowers, motorcycles, trailers, dump trailers, tractors, RVs, vans, campers, ATVs, utility vehicles, and more. Overall, I highly recommend the 10W Solar Battery Charger to anyone looking for a reliable, easy-to-use, and effective solution to charge their battery and keep their vehicle or boat running smoothly.

Glenn Kellis

Good quality and works great to keep your car battery charged when away for long periods l

Reviewed in the United States on November 13, 2024

Well made, good connections.

scirocco

cigarette lighter no, direct to battery yes

Reviewed in the United States on February 26, 2021

I bought this product to charge my truck battery as I have a drain that empties the battery if I park it for a few days. I figured that if I use the solar charger, my truck will get an extra charge to the battery, which will do me good as I drive short distances and the truck is parked most of the day.

I used this product religiously, every time I turned off the truck I plugged the charger into the cigarette lighter. I followed the instructions, which said to use the lighter port that illuminated the light on the charger. I started measuring the battery voltage at night after I got home, and again the next morning and I kept a log. Anyway I noticed that this charger made no difference to my battery at all.

I used it a different car and had the same result. So it didn't work at all through the cigarette lighter.

I hooked the panel directly to the battery one day and measured the voltage and it worked well. It was charging the battery.

My advice would be to wire this panel to the batter directly, maybe with a switch to turn it off at night and when the car is running. But, not to bother using it through the cigarette lighter.

jeff acor

work good

Reviewed in the United States on November 10, 2024

i used it for car set in week at a time

Mack G.

Lack of response to messages, failure of device = Negative experience

Reviewed in the United States on July 19, 2023

The first order arrived used and missing parts. Amazon processed the replacement and provided for it’s return.

Weeks later, during which the item was still being sold but for a dollar more, they eventually sent out the replacement. It arrived with clear packing tape added to it over the security sticker that seals the box.

Seemed to be new, with all its parts except that the only version of the instructions was in German or Dutch which I cannot read. So I MATCHED EVERYTHING TO THE AMAZON PAGE but missed the step about removing a clear covering “AS THERE WAS NO COVERING OF ANY KIND”, so I reached out to the seller through amazon and received NO RESPONSE FROM THEM.

So I figured as it wasn’t rocket science, I could get it set up, and the next day I tried to suss out the seemingly simple set up, but I missed the GERMAN/DUTCH NOTES about not leaving it installed when starting or running the engine “AS I WAS RUNNING THE A/C IN THE 107 DEGREE HEAT” performing this simple set up.

- Reference from .pdf - “Before starting the motor, remove the cigarette lighter plug from the socket and do not use this charging method while driving. The vehicle’s motor may produce an electrical surge that could damage the solar panel.” -.

“NOW, NOT KNOWING IF I HAD CAUSED DAMAGE TO IT OR TO MY ELECTRICAL CIRCUIT”, I contacted the seller AGAIN, relaying what had occurred during the installation, and that I had eventually found a .pdf manual on the Amazon page, but that I was uncertain if it was the most up to date version as it mentions the “NON-EXISTENT COVERING REMOVAL , but does mentioned to not start the car while the solar panel was installed - so I asked what would be the result from having the car running while installed, would there be any damage to the circuitry - AND RECEIVED NO RESPONSE FROM THEM.

STUPIDLY, even knowing better at this point, I left it connected to my new battery to see if would maintain the voltage I measured at the battery, even with IT’S OWN VERY BRIGHT LED ON THE PLUG AND THE DIMMER ONE ON THE BACK OF THE PANEL ADDING TO THE PARASITIC DRAIN ON THE BATTERY......NOPE! My 2 month old, bought it brand new off the self after waiting two weeks for stock to arrive battery was suddenly unable to start the engine.

I only wanted this to produce enough of a charge to keep the battery topped off and prevent the batteries lead sulfate from crystallizing, as it sits for long periods of time.

I did look into it as much as I could, to try and figure out why this brand had some of the highest ratings among the different solar panels. Instead I discovered that they seemingly want to bypass Amazon’s being aware of any problems, and the customers having Amazons protections, by providing this on a contact page:

“If you do not receive our email reply on Amazon for more than 24 hours, some words may be blocked. Because we will reply to Amazon's email within 24 hours, if this problem occurs, please contact us through the email below.
Email ①: [email protected]
Email ②: [email protected]”

I’m not sure why, legitimately, they would want to block any “WORDS” coming from Amazon and prefer to bypass the copies of communication between seller and customer that Amazon reviews, but I do have a few guesses...

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