SOLPERK Solar Panel Kit 20W 12V, Waterproof Solar Battery Trickle Charger Maintainer + Smart MPPT Controller + Adjustable Mou
4.4 | 4,512 ratings
Price: 31.49
Last update: 01-21-2026
About this item
- 【High Conversion Rate】This 20W solar panel with monocrystalline A+ solar cell has an excellent cell efficiency of 21%-30%. Designed to charge and maintain 12V rechargeable batteries like LiFePO₄, Lithium Ion, AGM, SLA, GEL, EFB, MF, etc. Keep batteries in charged for trailer, tractor, truck, boat, motorcycle, RV, car, lawn mower, water pump, gate opener, electric fence, etc
- 【Built to Last】 Low-iron tempered glass surface and corrosion-resistant aluminum frame, make this solar panel 100% waterproof and rustproof, and provide the prolonged lifespan up to 25 years. This 12V solar panel can withstand all weather conditions such as sandstorm, strong wind, thunderstorm, blizzard, hail, etc. It can withstand up to 2400Pa wind pressure and 5400Pa snow load
- 【Smart Charge Controller】The charging efficiency of this upgraded 8A controller is 20%-30% higher than other controllers on the market. Its intelligent three-stage charging design effectively prevents the battery from overcharging, over-voltage and short circuit. It takes no power from the battery. You will clearly know the charging status of the battery through the two indicator lights on the controller
- 【Easy to Install & Angle Adjustable】- Equipped with a 360 degree angle adjustable mounting bracket. Helps solar panels always have the best angle to face the sun. It’s very easy to install this bracket on the solar panel with pre-drilled mounting holes and needed screws. All cable connections are plug and play
- 【What You Get】 1 solar panel + 1 charger controller + 1 mounting bracket +1 alligator clips +1 O-rings + 1 set of mounting pieces. We provide one year after-sale service and lifetime technical support. 7×24 hours After-sales service ensures that your question is answered within one day
Product information
Features & Specs
| Efficiency | High Efficiency |
|---|---|
| Connector Type | SAE |
| Amperage Capacity | 8 Amps |
| Maximum Voltage | 12 Volts |
| Maximum Power | 20 Watts |
Measurements
| Item Dimensions L x W x H | 15"L x 13.2"W x 0.7"H |
|---|---|
| Item Weight | 3 Pounds |
Additional details
| Material Type | Aluminum, Monocrystalline Silicon |
|---|
Warranty & Support
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 conditionshere.
Product Warranty:For warranty information about this product, pleaseclick here
Feedback
SOLPERK Solar Panel Kit 20W 12V, Solar Battery Trickle Charger Maintainer + Upgrade Controller + Adjustable Mount Bracket for Boat Car RV Motorcycle Marine Automotive
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Item details
| Brand Name | SOLPERK |
|---|---|
| Included Components | 1 X 20W Mono solar panel, 1 X User Manual, 1 X controller charger, 1 X360° Adjustable bracket, 2 X Mount Screws |
| Model Number | FD-EP-230201-1688 |
| UPC | 884017701569 |
| Customer Reviews | 4.44.4 out of 5 stars(4,267) 4.4 out of 5 stars |
| Best Sellers Rank |
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| ASIN | B08GX19KT9 |
| Item Height | 0.7 inches |
| Manufacturer | SOLPERK |
| Unit Count | 1.0 Count |
Top reviews from the United States
- DSLimpresseddI’m extremely impressed with the SOLPERK Solar Panel Kit 20W 12V. It’s a high-quality and well-designed product that truly delivers what it promises. The installation was quick and easy, especially with the adjustable mounting bracket, which made it simple to find the perfect angle for maximum sunlight.
The upgraded controller works flawlessly and protects the battery perfectly, preventing overcharging or discharging issues. I’ve been using it to maintain my car and RV batteries, and it keeps them charged effortlessly, even after several cloudy days. The panel feels sturdy and durable, built to handle outdoor conditions.
What I love most is that it’s versatile — perfect for boats, motorcycles, and other 12V battery systems. It gives peace of mind knowing that my batteries are always maintained and ready to go.
Overall, this SOLPERK solar kit is an excellent investment for anyone looking for a reliable, easy-to-use, and efficient solar charging solution. Highly recommended! - technical-booksPerfect Solar Charger for My Boat BatteryI bought the SOLPERK 20W Solar Panel Kit for my boat, and it worked perfectly all summer. It kept my 12-volt deep-cycle battery fully charged without any issues. The setup was easy, and the included controller worked great. The build quality feels solid and durable, and the panel handled outdoor conditions well. This is a reliable and affordable solution for keeping a battery maintained on the water. Highly recommend it
- NeilWorth while little salar panelI use this to charge my homemade power generator. I have the charge controller installed in a 30-caliber ammo can. So far it has worked great. Hard to get a full 20w as I've never had full sun yet, but it has charged my little agm battery regardless. Having extra power while camping is great. The plug ins are a little cheap, but the sand is really nice. The kit is plug and play. Note that the solar controller does not monitor battery usage, so you can drain your battery dead with this system. Make sure that works for your use.
- Holly JohnsonEverything to charge my batteryWorks great
- adilExcellent Solar Charger – Perfect for Outdoor Use!The SOLPERK 20W Solar Panel Kit is an outstanding product! I use it to charge my phone, power a light, or listen to music when I go to the park or camp —and it even works great for charging other devices. The setup was easy thanks to the clear instructions, and the build quality is excellent. It’s durable, looks great, and the materials feel premium. The packaging was solid, and the price is very reasonable compared to similar products. Highly recommended for anyone needing portable, reliable solar power.♻️????
- AsteroidNice kitGreat little solar kit! Easy to set up, solid build quality, and it charges a 12V battery reliably even on partly cloudy days. The included controller works well and protects the battery. Perfect for small projects, lawn equipment, or maintaining batteries. Excellent value for the price!
- JomantraEasy to use and installI purchased the SOLPERK Solar Panel Kit 20W 12V, Solar Battery Trickle Charger Maintainer to charge the battery on my lawn tractor, which sits in a shed without electric service. So, the battery didn't seem to maintain a full charge between uses and sometimes wouldn't turn the engine over. I installed this yesterday to help maintain the lawn tractor battery in full capacity. The installation is pretty simple, with a bracket to hold the solar panel provided. Just a note, the bracket can only be mounted in a horizontal position to support the solar panel and provide directional control for the panel to face the sun. Installing the bracket vertically, will only allow the solar panel to be turned left and right and will be perpendicular to the sun if mounted on a vertical post or wall. There is about 6' of wiring to the controller which connects to the panel. The controller requires no programming by the user. Connect the controller to the 12V battery (battery clamps provided with unit) then plug it in to the solar panel and three lights will tell you everything. The blue light (on top of the others) tells you the panel is in the sunlight and providing normal voltage. The second light is red and will tell you that it is charging the battery. The third light (green) appears only when the battery is charged, which means the battery has 14.2 volt charge. It comes with a set of wires to actually screw down on battery posts. So far, the unit seems to be working and has charged my 12V battery fully! No need to remove the connections when charged, as the controller will prevent it from overcharging the battery. I don't know about longevity of the product, the controller is supposed to be waterproof but I keep it inside with the lawn tractor. Other than keeping the solar panel clean with a damp towel, and the battery clamps clean, there isn't much more maintenance required, the instructions say! So far, I do like the unit and being able to keep my lawn tractor battery at full charge! Easy installation!
- Felicia FordReliable charge & simple to set up!This SOLPERK solar panel kit is a powerhouse in a compact package! Setup was surprisingly simple, and the adjustable bracket makes it easy to catch the perfect amount of sunlight.
• Reliable trickle charge: Keeps 12V batteries healthy and ready to go—no more dead batteries after storage.
• Solid build quality: Sturdy panel, weatherproof controller, and all the hardware feels premium.
It’s a “set it and forget it” solution for anyone who wants worry-free maintenance charging. Whether for a boat, car, or camper, this little kit delivers big peace of mind!