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Solar Panel Kit 25W 12V Monocrystalline, Solar Battery Trickle Charger Maintainer, Solar Battery Maintainer + Upgrade Controller + Adjustable Mount Bracket, Best for Boat Car RV Motorcycle

  • Based on 27 reviews
Condition: New
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$39.99 Why this price?
4th of July Sale · 23% off was $51.99

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Availability: Only 9 left in stock, order soon!
Fulfilled by Amazon

Arrives Jul 14 – Jul 16
Order within 5 hours and 17 minutes
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Size: 25W-2


Features

  • High Conversion Monocrystalline Solar PanelThis 25W 12V solar panel kit is made of high-efficiency monocrystalline silicon, and the solar energy conversion rate can reach more than 30% under full sunlight. This solar panel kit is designed for charging and maintaining 12V rechargeable batteries such as LiFePO4, Li-Ion, AGM, SLA, GEL, EFB, MF, etc.
  • Upgraded Smart Charge ControllerThis solar panel kit system is equipped with a new upgraded model smart charge controller, advanced smart charge controller algorithm can improve charging efficiency, and the tracking efficiency is as high as 99%, the peak conversion efficiency is as high as 98%, which improves the utilization rate by more than 25% compared to the solar panels in the market.
  • Full-time Safety ProtectionThe smart charge controller in this solar battery maintainer kit has 6 protection functions to prevent overcharge, overvoltage, discharge and short circuit of the battery, and also has reverse polarity protection to provide comprehensive protection box care for the battery, making charging 100% safe.
  • Durable Material, Premium QualityThis 25W 12V solar panel kit is made of strong and lightweight tempered glass surface and aluminum alloy frame, which can be lower than high wind (2600Pa) and snow pressure (5600Pa), prevent weathering, wear and tear and corrosion, 100% waterproof and rustproof, with a service life of up to decades.
  • Multiple CompatibilityThis is a perfect 25W solar battery maintainer solar panel kit, compatible with 12V rechargeable batteries, including RVs, trucks, cars, rooftops, camping, cabins, yachts, boats, lawn mowers, electric fences electric bikes, pickup trucks, golf carts, snowmobiles, lawn mowers, electric fences, water pumps, gate openers and more.
  • Quick InstallationThis 25W 12V solar battery maintainer is very easy to install, with pre-mounted holes in all the locations where it needs to be installed, and all the cables are plug and play. This solar panel kit also comes with a 360 freely adjustable bracket, you can adjust the angle of the solar panel facing the sun's most abundant light during use.

Brand: GYKZ


Material: Aluminum, Monocrystalline Silicon


Product Dimensions: 13.2"L x 0.5"W x 13"H


Efficiency: Over 30% High Solar Conversion Rate


Included Components: 1* 25W Solar Panel + 1* Charger Controller + 1* Crocodile Clip + 1* O-ring + 1* Mounting Bracket + 1* Set of Mounting Parts + 1* Auxiliary Mounting Sticker See more


Efficiency: Over 30% High Solar Conversion Rate


Maximum Power: 25 Watts


Connector Type: Battery Clips, O-Ring Terminal


Item Dimensions L x W x H: 13.2"L x 0.5"W x 13"H


Material Type: Aluminum, Monocrystalline Silicon


Brand Name: GYKZ


Included Components: 1* 25W Solar Panel + 1* Charger Controller + 1* Crocodile Clip + 1* O-ring + 1* Mounting Bracket + 1* Set of Mounting Parts + 1* Auxiliary Mounting Sticker


Model Number: Solar battery maintainer(25W 12V)


Manufacturer Part Number: 25w 12V Solar battery maintainer


Manufacturer: GYKZ


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Jul 14 – Jul 16

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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  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

Top Amazon Reviews


  • Yay it works
Size: 25W-2
Works great so far. Does what it needs to do.
Reviewed in the United States on March 10, 2026 by Amazon Customer

  • Not as expected
Size: 25W-2
It's doesn't have the power to charge RV or car batterys. It did charge my motorcycle battery, but not my car or RV batterys. If not in direct sunlight will not produce more than 11v power. Definitely not 25W power, maybe 2W to maintain charged battery with minimal drow.
Reviewed in the United States on October 6, 2025 by PETER V.

  • Soler charger Soler charger
Size: 25W-2
I was able to use soler charger over the 4th of July for camping. Work well even in the shade in was seeing over 12v. In the sun little over 15v. Make sure you hook up the soler first. You will need a small screwdriver. To hook up the wires to the control panel. So far so good.
Reviewed in the United States on July 4, 2025 Reviewed in the United States on July 4, 2025 by Reo7

  • Not recommending.
Size: 25W-2
The support brackets is wider than the frame, could not assemble, the controller did not function as specified. It was returned.
Reviewed in the United States on August 7, 2025 by TJ49

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