OYMSAE 30 Watt 12 Volt Solar Panel Solar Trickle Charger 30W 12V Portable Solar Battery Charger & maintainer with Cigarette L

4.2 4.2 out of 5 stars | 2,629 ratings

Price: 66.99

Last update: 12-29-2024


About this item

????[22% High Conversion Rate] Monocrystalline solar battery charger use ETFE , with a light transmittance of up to 95%. The 30W trickle charging mode is an ideal choice for low-cost maintenance of your 12V battery power.
????[Intelligent Protection] Combined with built-in charging microprocessor technology, it will not overcharge the battery when fully charged during the day, and prevent the battery from reverse discharge at night.
????[Charging Visualization] The indicator lights are used to help you understand the charging status: the blue light is on (in the sun), the red light is on (charging), the green light is on (charging completed), three indicator lights are off (a short circuit occurs). You can check the connection in time when the solar energy fails.
⛴[Plug and Play] The 3-piece SAE cable included with the solar panel kit allows you to have more choices in charging methods. Plug and play, even for inexperienced novices, fast connection can be achieved.
????[Sturdy and Durable] Waterproof solar trickle charger, adding CPB as the bottom plate, reducing the risk of reducing the efficiency of the solar panel due to panel breakage.

Product information


Top reviews from the United States

Rodney Shipley
5.0 out of 5 stars Simple and effective setup.
Reviewed in the United States on June 13, 2024
The installation instructions are good and easy to follow. Mounted on top of the trailer kit, it charges the deep cycle battery and performs as expected. The whole is very stable and does not move even in high winds.
Dbar
5.0 out of 5 stars Marine application- great
Reviewed in the United States on August 4, 2024
Took the worry out of charging the battery on my boat. Never worried again about whether it's plugged in or not. This thing works great!
Indicator when the battery is charged and if it's charging or not.
RWS
4.0 out of 5 stars Did Not Charge My Battery
Reviewed in the United States on March 24, 2024
I had high expectations, but the solar panel did not charge my auto battery enough to get the "green light" indicating my battery was charged; always blue in the sun and red charging lights after two days+ Instructions are scant and useless.

UPDATE 2 to 4 stars: Although the product sent did not work for me. The company offered a replacement or a full refund. I updated my stars from two to four based upon the sellers customer service and response to my original review.
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.
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.
gene b
5.0 out of 5 stars It Works
Reviewed in the United States on July 8, 2024
Easy to set up. Works. Appears well made and sturdy. Good price. Nothing I disliked about the product. Would buy again.
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.
Sherry A. Larson
3.0 out of 5 stars Leads going to battery poorly designed
Reviewed in the United States on June 14, 2024
Car I purchased it for displayed "short circuit" would not work. worked fine on old truck. Battery leads poorly designed, unhook and have exposed hot lead on plug connection Not all lighters are hot when car turned off. Had to use alligator clips.

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