Sienna Solar > Products > Marine Solar Panels for Boats > SUNSUL 20W 12V Solar Panel Kit with Trickle Charger, Maintainer, and Adjustable Mount Bracket for Marine, Automotive, RV, Motorcycle, and Boat.
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SUNSUL 20W 12V Solar Panel Kit with Trickle Charger, Maintainer, and Adjustable Mount Bracket for Marine, Automotive, RV, Motorcycle, and Boat.
Efficient and Durable – Our 20W solar panels are made with high-efficiency monocrystalline cells that convert up to 23% of solar energy into power. Featuring weatherproof materials such as low iron tempered glass and EVA film, and a high-quality aluminum frame, these panels are windproof and rainproof, making them perfect for outdoor use for over a decade.
Versatile Power Solution – Our 12 Volt solar panel is an ideal kit for charging 12V batteries and powering various DC devices. It’s suitable for a range of scenarios including RVs, cars, boats, fences, security cameras, greenhouses, lawnmowers, motorcycles, jet skis, trailers, homes, and more.
Easy and Flexible Installation – Our solar panels come with an adjustable mounting bracket that can be used to position the panel at any angle up to 180°, ensuring maximum sunlight absorption and power generation. With pre-drilled holes on the back of the panel, installation is quick and straightforward.
Smart Charge Controller – Our 12V/24V 5A charge controller utilizes a 4-stage PWM charging system (Bulk, Boost, Float, and Equalization) that prolongs battery life and enhances system performance. It also includes intelligent protection against reverse polarity, overcharging, short-circuiting, and reverse current. Additionally, the controller features USB 5V/2A output ports for charging mobile devices.
Reliable After-Sales Service – Each of our solar panels undergoes rigorous testing and inspection before leaving the factory to ensure their quality. If any issues arise, our customers can contact us and we guarantee prompt resolution within 24 hours. We also provide 18 months warranty and lifetime technical support for all our products.
Additional information
Brand
SUNSUL
Material
Aluminum,Eva,Tempered Glass
Efficiency
High Efficiency
Style
Battery
Connector Type
Usb
Included Components
Case
AC Adapter Current
5 Amps
Maximum Voltage
12 Volts
Maximum Power
20 Watts
Product Dimensions
15"L x 13.8"W x 1.4"H
Manufacturer
SUNSUL
Item Weight
4.05 pounds
Country of Origin
China
Item model number
20 Watt Mono Solar Panel Kit
Size
20 Watt with accessories
Power Source
Battery Powered,Corded Electric
Batteries Required
No
8 reviews for SUNSUL 20W 12V Solar Panel Kit with Trickle Charger, Maintainer, and Adjustable Mount Bracket for Marine, Automotive, RV, Motorcycle, and Boat.
Rated 4 out of 5
itriedit –
I just got the solar panel. I plugged it in to power my ecoflow river max. In full sunshine i got 109w.
Rated 4 out of 5
Tony De La Cruz –
As another reviewer said you do have to follow the exact directions for this solar maintainer to work right. I used it on the day it arrived. It was putting out the voltage that it was supposed to , I have not put a load on it as of yet. I just wanted to see if it was working. I will come back as soon as I finish to give a better review. The solar panel is well done my did not have any sharp edges to cut yourself but you do have to be careful as any metal can cut you.
Rated 5 out of 5
AP –
IT was for random use with my radio gear in a portable field situation. ITs enough power at 30W to maintain the LiFePo4 (20ah) while running the SSB radio. Its compact and light enough . It is complete with charge controller. Enough different pigtails to suit varied needs and hookups.
Rated 5 out of 5
Andy Reed –
Panel is well built and powerful. Unfortunately, for some reason, it produces 25-26 volts in full sun. None of my 12 volt charge controllers will accept such a high voltage… Update: my cheaper pwm charge controllers would keep shutting off with the high voltage of this panel. Other panels I’ve hooked to them produce 19-22 volts and they work fine. I bought a more expensive mppt charge controller and it handles this panel just fine.
Rated 4 out of 5
Kate Fulton –
Seems to work
Rated 5 out of 5
B-Dog –
I have been toying with the idea of putting a solar panel on my toy hauler trailer for a couple of years. Checked this one out and decided to get it. Reviews were good and it was definitely cheap enough. Easy to install the panel, very nice mounting system. Figuring out a place for the controller, and how to run the wires, was a bit of a challenge. Needed more wire to get to the batteries, not very much in this kit. Works great though. Bit of a learning curve to figure out the controller, but very happy with it, and know more dead batteries. It is kind of interesting that the controller has to be hooked to the batteries to work. No battery hooked up, no display on the controller.
Rated 5 out of 5
Michele Raymond –
Love that this little unit is a complete set. Works very well to run small pumps that we have at camp. This was purchased to run a waterless hot water heater. Holds a charge well.
Rated 4 out of 5
Steve C. –
In full sun at correct tilt into sun this panel only produces at max 30 watts with my epever mppt controller. This panels power output is over rated. 60 percent output is unacceptable.
UPDATE…. I asked for a replacement panel from the seller, SUNSUL. The seller was very receptive to my request. The replacement panel tested much better than the first. In full sun I was able to get 42 watts from the 50 watt panel. 84 percent is definitely more acceptable and now I am a satisfied customer. Perhaps the first panel was just faulty. I really appreciated the high quality customer service from SUNSUL . Now have changed my rating to 4 stars. And 5 stars for customer service.
itriedit –
I just got the solar panel. I plugged it in to power my ecoflow river max. In full sunshine i got 109w.
Tony De La Cruz –
As another reviewer said you do have to follow the exact directions for this solar maintainer to work right. I used it on the day it arrived. It was putting out the voltage that it was supposed to , I have not put a load on it as of yet. I just wanted to see if it was working. I will come back as soon as I finish to give a better review.
The solar panel is well done my did not have any sharp edges to cut yourself but you do have to be careful as any metal can cut you.
AP –
IT was for random use with my radio gear in a portable field situation.
ITs enough power at 30W to maintain the LiFePo4 (20ah) while running the SSB radio.
Its compact and light enough .
It is complete with charge controller.
Enough different pigtails to suit varied needs and hookups.
Andy Reed –
Panel is well built and powerful. Unfortunately, for some reason, it produces 25-26 volts in full sun. None of my 12 volt charge controllers will accept such a high voltage…
Update: my cheaper pwm charge controllers would keep shutting off with the high voltage of this panel. Other panels I’ve hooked to them produce 19-22 volts and they work fine. I bought a more expensive mppt charge controller and it handles this panel just fine.
Kate Fulton –
Seems to work
B-Dog –
I have been toying with the idea of putting a solar panel on my toy hauler trailer for a couple of years. Checked this one out and decided to get it. Reviews were good and it was definitely cheap enough. Easy to install the panel, very nice mounting system. Figuring out a place for the controller, and how to run the wires, was a bit of a challenge. Needed more wire to get to the batteries, not very much in this kit. Works great though. Bit of a learning curve to figure out the controller, but very happy with it, and know more dead batteries. It is kind of interesting that the controller has to be hooked to the batteries to work. No battery hooked up, no display on the controller.
Michele Raymond –
Love that this little unit is a complete set. Works very well to run small pumps that we have at camp. This was purchased to run a waterless hot water heater. Holds a charge well.
Steve C. –
In full sun at correct tilt into sun this panel only produces at max 30 watts with my epever mppt controller.
This panels power output is over rated. 60 percent output is unacceptable.
UPDATE….
I asked for a replacement panel from the seller, SUNSUL. The seller was very receptive to my request.
The replacement panel tested much better than the first. In full sun I was able to get 42 watts from the 50 watt panel.
84 percent is definitely more acceptable and now I am a satisfied customer. Perhaps the first panel was just faulty.
I really appreciated the high quality customer service from SUNSUL .
Now have changed my rating to 4 stars. And 5 stars for customer service.