OYMSAE 5W 12V Solar Car Battery Charger Portable Waterproof Solar Power Battery Charger & maintainer with Trickle Cigarette L

4.3 4.3 out of 5 stars | 2,750 ratings

Price: 24.99

Last update: 11-11-2024


About this item

Charge Visualization：The indicator lights can help you understand the charging status
Intelligent Protection：Built-in blocking diodes can prevent reverse charging and can be safely used for charging and maintaining 12 V 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 three-pieces SAE cable kit is plug-and-play,it can be used for cars and 12 V 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

Product information


Top reviews from the United States

C M.
5.0 out of 5 stars works perfectly
Reviewed in the United States on November 3, 2024
Picked up to keep the battery charged in a second vehicle that is rarely driven. Battery would be dead in a week or so. Plugged into power port, and set the panel on the dash, and after 3weeks, the engine turned over and started easily. Measured it at 18v at 1.5amps.
Would buy again. Panel is super thin, but tough and slightly flexible. Really pleased with the performance and quality.
IVETTE
5.0 out of 5 stars Easy to use, effective product
Reviewed in the United States on October 28, 2024
Very practical and totally meets my expectations.A great product , easy to install and use.
Hal Adkins
4.0 out of 5 stars Now on 2nd unit
Reviewed in the United States on May 17, 2023
I first received this nice thin and light solar battery charger in the fall of 2022, used it on my stored motor home all winter and seemed to keep the batteries up quite nicely. When I brought the MH back home I noticed the indicator lights were not working at all on the charger, so did not know if the unit was functioning as it should or not. After a few tries of trying to contact the seller they replied and were very nice and sent me out a new unit VERY quickly and for no charge. The new one is working fine with operational indicator lights functioning as they should. Hopefully this replacement unit will continue to work for a lot longer than the first one, as Ireally like this product and want to continue to keep using it. Four stars as the first unit did not last even close to a year.
Amaury Lopez
5.0 out of 5 stars Stopped working after 2 months (Or so I thought) [UPDATED REVIEW]
Reviewed in the United States on September 13, 2022
Original Review:
At first I really liked the panel, I have a Bluetooth adapter that reads battery voltage and I could see the charge go up if I sat there for a few seconds. I was checking voltage regularly (every 2 or 3 days) to make sure it was keeping my battery at the properly charged, which it was. So when I finally decided to trust this and not be checking it so often, it stops working. Now I have a dead battery and will have to pay to have it replaced. Not happy.

Updated Review:
Let me start by saying that the reason my battery drained was not this solar panel's fault. Turns out the Hands-Free Link module in my car had gone bad and was draining the battery even when the car was off. Once that was found to be the issue, thanks to a friend that has the same car I do and coincidentally started having the same battery drain issue too, he told me what was causing and how to get to it to unplug it to test if my HFL module was draining the battery. After the HFL module was unplugged I then though to take this solar panel out from storage and check, I had not used it since I labeled it as "bad" but never got to throw it away since I thought it did put out some power just not enough for my car. Well now I can say that my car can sit indefinitely, the battery will not die anymore and has not gone bellow 12.3 volts even after 3 weeks of the car not being used.
David
5.0 out of 5 stars Works great
Reviewed in the United States on September 18, 2024
Functions as better than expected, it's lightweight and seems pretty durable. The small size makes it easy to place anywhere. Overall, good value.
David G.
5.0 out of 5 stars Great for keeping good batteries charged
Reviewed in the United States on May 29, 2024
Many bad reviews from people who are trying to use this to charge a dead battery. That isn't what this is for at all. It is to keep a good battery charged up. I use it on my RV battery that is permanently stored and used in a remote area. The battery stays charged up, and I tested the unit and even on cloudy days it provides some charge.
This does not provided enough juice to charge a fully dead battery in a reasonable time, although I believe it would over several days if the battery was just drained and not done for.... Fully draining batteries is very, very bad for longevity.
If your RV is completely off grid it won't be enough for daily use continuously. Would likely work great for a weekender if your smart about usage.
If you want to keep your boat, truck, RV, jet ski, ATV, etc battery charged while it sits for a week or more between uses this is great.
Tom
3.0 out of 5 stars It’s ok, but not great
Reviewed in the United States on July 13, 2024
As mentioned in other reviews, the leads are backwards - red goes to ground and black to positive. I resoldered mine to fix the issue, but it should have been correct when purchased.

The panel works great for keeping a seldom driven car’s battery charged.
GAU8mechanic
4.0 out of 5 stars Doesn't like the elements
Reviewed in the United States on September 7, 2024
Used as a battery tender for my car in storage. Works great if you leave the solar panel on the dash but it doesn't like being in the elements if you put it on the outside of the vehicle. Barely had it a year and it no longer charges. Completely dead. It worked great when it did work though.

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