OYMSAE White 20W 12V Solar Panel Battery Charger Portable Waterproof Power Trickle Battery Charger & Maintainer for Car Boat Automotive RV with Cigarette Lighter Plug & Wiring Clip
Condition: New
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FREE 30-day refund/replacement
To qualify for a full refund, items must be returned in their original, unused condition. If an item is returned in a used, damaged, or materially different state, you may be granted a partial refund.
To initiate a return, please visit our Returns Center.
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Availability:
Only 10 left in stock, order soon!
Arrives
Friday, Jul 31
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Size: 20W
Features
- Charge Visualization:The indicator lights can help you understand the charging status: the blue light is on (put in the sun), the red light is on (charging), and the green light is on (charging is complete).A short circuit occurs and all three indicators are off
- Intelligent Protection: Built-in charging microprocessor, improved charging algorithm, can provide overvoltage protection, overcharge protection, short circuit protection, etc. It can prevent reverse charging and can be safely used for charging and maintenance of 12V batteries
- Higher Conversion Rate:The regular convex points of surface distribution are conducive to the secondary propagation of light, absorb the radiant heat of solar energy to a greater extent, and greatly improve the photoelectric conversion efficiency
- Widely Used:The included 3-piece SAE cable kit is plug-and-play,it can be used for cars and 12V batteries. Comes with carabiner and suction cup to meet your different installation needs. Suitable for automobiles, RVs, motorcycles, ships,snowmobile,etc
- More Durable:The PET material can be waterproof and dustproof. A layer of epoxy board is added as a bottom plate, which is more sturdy (the broken panel will cause the charging efficiency to decrease). You can contact us at any time if you have any questions
Brand: OYMSAE
Color: white
Product Dimensions: 0.8"D x 11.4"W x 16.1"H
Item Weight: 1.56 Pounds
Input Voltage: 12 Volts
Input Voltage: 12 Volts
Connector Type Used on Cable: SAE
Item Dimensions D x W x H: 0.8"D x 11.4"W x 16.1"H
Item Weight: 1.56 Pounds
Color: white
Brand: OYMSAE
Mfr Part Number: PO-M20W
Manufacturer: OYMSAE
Model Number: PO-M20W
Item Type Name: solar battery charger
Warranty Description: 2 Year Manufacturer
Built-In Media: 1pc aligator clip, 1pc cigaretor, 1pc ground ring, 1pc solar panel
Frequently asked questions
If you place your order now, the estimated arrival date for this product is:
Friday, Jul 31
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.
To initiate a return, please visit our Returns Center.
View our full returns policy here.
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Learn more about financing & leasing here.
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Top Amazon Reviews
Size: 20W
I recently started putting my RV in storage. Since there were no electrical plugs nearby I switched off all power. I thought that was all I needed to do, but a couple of weeks later I got a text from my RV's built in monitoring system telling me that my chassis battery was critically low and soon I would not be able to start my engine. This OYMSAE 20 watt 12 volt solar battery charger did the trick! In just one day the battery was out of the critical range and in just a couple of days it was fully charged. The feature that I like best about this product is that it cuts itself off when the battery if fully charged and only comes on when it needs to. It works great and is super easy to use. I highly recommend it.
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Reviewed in the United States on September 6, 2025 by MarkAusTx
Size: 20W
This is working great for keeping my battery charged on a vehicle that isn't used a lot. In fact I'm averaging about 3000 miles a year. The constant drain from the modules that never actually turn off was draining my battery. Fortunately on my vehicle one of the 12V power ports is always making connecting and disconnecting easy.
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Reviewed in the United States on October 21, 2025 by Charles L.
Size: 20W
I wanted a way to keep my battery charged but had no way to plug in to an outlet, so I saw this panel and tried it ,works ok just a little big for my dashboard so we had to use the suction cups .
Reviewed in the United States on April 25, 2025 by Denise F.
Size: 20W
Fantastic solar charger. I connect it to my sons car battery and it stays charged when he doesn't drive the car.
Reviewed in the United States on August 4, 2025 by Michael Williams
Size: 20W
you can place it inside or outside of the windshield and trickle charge the car battery.
Reviewed in the United States on May 31, 2024 Reviewed in the United States on May 31, 2024 by Peter
Size: 20W
I bought the 20W 12V panel to trickle charge my RV chassis battery in the Colorado sun (Colorado averages around 252 days of sunshine annually, where the sun is visible for at least half of the day). It turns out it can't even keep up with a small parasitic drain over a 30 day period. I can't recommend wasting your money on this.
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Reviewed in the United States on March 16, 2025 by escott
Size: 20W
Great panel Keeps my little used vehicles battery at 100% charge for when it’s needed
Reviewed in the United States on December 21, 2024 by Harry Douglas Smith Jr
Size: 20W
It did work for a while. But it’s been over a year and for the last couple of months, it has not been charging. The lights say that it is, but it never gets to full charge “green light”. Even with a new battery. My jetski confirms it doesn’t work as it says 12V LOW on the dash. Too long ago to return. I’m going back to a plug in trickle charger. These solar ones are not reliable.
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Reviewed in the United States on September 25, 2025 by JJ