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Your cart is empty.4.3 out of 5 stars
- #9,895 in Patio, Lawn & Garden (See Top 100 in Patio, Lawn & Garden)
- #6 in Solar Battery Chargers & Charging Kits
Product Description
SJ
Reviewed in the United States on February 26, 2025
I have an IID breathalyzer in my car and it kills my battery within 2 or 3 days of not driving. They say it's low power usage but that's crap. Also stressing the battery is one way to blow threw a good one. Anyways, I tried a 7.5 Watt panel and it just wasn't enough still dead by day 3. Not playing around I baught this 30 Watt and it works perfectly. Left my car in a half simi shade spot for 3 days and the car started up no problems at all. It's on the dash at the moment, but I'm gonna run it for under my sun roof soon and do some tests to see if it's enough and will update my review here in a few weeks after testing. The reason being is that sun roofs have a factory tint that you cannot remove that reduces the power by a third. Still being who I am I want to test it and find out.
SJ
Reviewed in the United States on February 26, 2025
I have an IID breathalyzer in my car and it kills my battery within 2 or 3 days of not driving. They say it's low power usage but that's crap. Also stressing the battery is one way to blow threw a good one. Anyways, I tried a 7.5 Watt panel and it just wasn't enough still dead by day 3. Not playing around I baught this 30 Watt and it works perfectly. Left my car in a half simi shade spot for 3 days and the car started up no problems at all. It's on the dash at the moment, but I'm gonna run it for under my sun roof soon and do some tests to see if it's enough and will update my review here in a few weeks after testing. The reason being is that sun roofs have a factory tint that you cannot remove that reduces the power by a third. Still being who I am I want to test it and find out.
vk
Reviewed in the United States on February 21, 2025
This solar panel keeps my Prius 12v battery going. I’ve lost 12v power before for various reasons and had been reproducible. With this in play my 12v hadn’t dropped like it did before. Works great on my rear window while I’m camped out or parked for awhile or while being stowed in the driveway for extended periods of time. Cheap and effective
vk
Reviewed in the United States on February 21, 2025
This solar panel keeps my Prius 12v battery going. I’ve lost 12v power before for various reasons and had been reproducible. With this in play my 12v hadn’t dropped like it did before. Works great on my rear window while I’m camped out or parked for awhile or while being stowed in the driveway for extended periods of time. Cheap and effective
DR. PHIL HARMONIK
Reviewed in the United States on February 14, 2025
The 20 volt model is superior to the 10 volt and works immediately.The lesser voltage is a waste of money
Daniel Thibodeau
Reviewed in Canada on February 14, 2025
Plus grand que je pensais, mais il entre bien dans un toit ouvrant standard (placé entre le verre et l'entre-toit interieur de mon VUS), vendeur très honnête ❤️ les accessoires et le panneau sont bien construit, facile a assembler et connecter 🙂 pas eu le temps deverifier l'efficacité, a suivre 😉
DR. PHIL HARMONIK
Reviewed in the United States on February 14, 2025
The 20 volt model is superior to the 10 volt and works immediately.The lesser voltage is a waste of money
Daniel Thibodeau
Reviewed in Canada on February 14, 2025
Plus grand que je pensais, mais il entre bien dans un toit ouvrant standard (placé entre le verre et l'entre-toit interieur de mon VUS), vendeur très honnête ❤️ les accessoires et le panneau sont bien construit, facile a assembler et connecter 🙂 pas eu le temps deverifier l'efficacité, a suivre 😉
CJ
Reviewed in the United States on January 22, 2025
This 20W solar panel has proven to be a reliable power source for my Meshtastic node. The built-in charge controller is particularly valuable for this application, preventing overcharging of the battery without needing additional components. I'm getting consistent power output even in partial shade, which is crucial for maintaining node uptime in less-than-ideal locations.The panel's physical construction is appropriately weatherproof - I've had it outdoors through several rainstorms without issues. The included mounting O-rings are sturdy and make it easy to secure the panel to poles or other structures. While the cigarette lighter adapter isn't particularly useful for Meshtastic applications, the alligator clips work well for connecting to standard battery terminals.For Meshtastic users specifically, I found the voltage output to be very stable, which helps prevent node resets. The 20W capacity is actually more than needed for a basic node setup, but this overhead is helpful on cloudy days or when running additional sensors. You'll want to add appropriate connectors for your specific battery setup, but the included wiring is of good quality and easily adaptable.One minor consideration is the somewhat limited length of the included cables, so factor in some extension wires if you're planning to mount the panel any significant distance from your node. Also, while the frame is sturdy, you might want to add additional UV-resistant coating if deploying in extremely sunny locations for long-term installation.
CJ
Reviewed in the United States on January 22, 2025
This 20W solar panel has proven to be a reliable power source for my Meshtastic node. The built-in charge controller is particularly valuable for this application, preventing overcharging of the battery without needing additional components. I'm getting consistent power output even in partial shade, which is crucial for maintaining node uptime in less-than-ideal locations.The panel's physical construction is appropriately weatherproof - I've had it outdoors through several rainstorms without issues. The included mounting O-rings are sturdy and make it easy to secure the panel to poles or other structures. While the cigarette lighter adapter isn't particularly useful for Meshtastic applications, the alligator clips work well for connecting to standard battery terminals.For Meshtastic users specifically, I found the voltage output to be very stable, which helps prevent node resets. The 20W capacity is actually more than needed for a basic node setup, but this overhead is helpful on cloudy days or when running additional sensors. You'll want to add appropriate connectors for your specific battery setup, but the included wiring is of good quality and easily adaptable.One minor consideration is the somewhat limited length of the included cables, so factor in some extension wires if you're planning to mount the panel any significant distance from your node. Also, while the frame is sturdy, you might want to add additional UV-resistant coating if deploying in extremely sunny locations for long-term installation.
Citydragon
Reviewed in Canada on January 17, 2025
Good price with discount coupon. Works fine to keep car battery charged. It is quite thin and light. A good number of accessories are included.
Citydragon
Reviewed in Canada on January 17, 2025
Good price with discount coupon. Works fine to keep car battery charged. It is quite thin and light. A good number of accessories are included.
Jerryg50
Reviewed in Canada on July 12, 2024
This solar panel is slow charging my truck battery and is able to keep it maintained. I am running 2 Garmin dash cams (front and rear) while the truck is parked. I leave these cameras running 24/7 for the security of my truck when parked outdoors. The cameras will save the video if there is any disturbance. The two cameras when standby and simply monitoring pull about 1/2 Amp from the battery. Over a number of days when the truck is parked the battery can start to run down because of the dash cams.This panel in full sun light is putting out about 2.4 Amps. On a bright cloudy day it is putting out anywhere from about 0.8 Amps to about 1.8 Amps depending on the density of the clouds. In most cases during the day this panel is maintaining the cameras to prevent the battery from being run down. When it is putting out more than about 1.5 Amps it is trickle charging the battery. The vehicle phantom current from its own electronics is about 0.06 Amps average. The user manual indicates after about 2 weeks of vehicle non use the battery may be run down. When parked for more than a few days the battery should have a charger connected to it.--In most of the Japanese vehicles the 12 Volt cigar lighter socket turns off with the key. With most of the US vehicles the 12 Volt cigar lighter socket remains live. In some of the Japanese SUVs and trucks they offer both a switched 12 Volt cigar lighter socket, and one that is always on.In my truck I have an always on 12 Volt cigar lighter socket. Also, you can have your dealer wire in a fuse protected auxiliary 12 Volt socket for you. They can also wire in a pair of 12 Volt wires and you can custom connect them to the panel or operate any other type of 12 Volt devices.--I would recommend this solar panel for battery maintenance. I found with the proper adapters it would be possible to put a number of these panels in parallel to have higher current.I have a friend with a large mobile trailer home and he wired up 20 panels in parallel to charge a bank of 12 Volt Lithium ION batteries. He is able to run his lighting, a computer, an RV fridge, and an HD TV with a sound system. All is using 12 Volts. His cooking and grilling is using propane.
Jerryg50
Reviewed in Canada on July 12, 2024
This solar panel is slow charging my truck battery and is able to keep it maintained. I am running 2 Garmin dash cams (front and rear) while the truck is parked. I leave these cameras running 24/7 for the security of my truck when parked outdoors. The cameras will save the video if there is any disturbance. The two cameras when standby and simply monitoring pull about 1/2 Amp from the battery. Over a number of days when the truck is parked the battery can start to run down because of the dash cams.This panel in full sun light is putting out about 2.4 Amps. On a bright cloudy day it is putting out anywhere from about 0.8 Amps to about 1.8 Amps depending on the density of the clouds. In most cases during the day this panel is maintaining the cameras to prevent the battery from being run down. When it is putting out more than about 1.5 Amps it is trickle charging the battery. The vehicle phantom current from its own electronics is about 0.06 Amps average. The user manual indicates after about 2 weeks of vehicle non use the battery may be run down. When parked for more than a few days the battery should have a charger connected to it.--In most of the Japanese vehicles the 12 Volt cigar lighter socket turns off with the key. With most of the US vehicles the 12 Volt cigar lighter socket remains live. In some of the Japanese SUVs and trucks they offer both a switched 12 Volt cigar lighter socket, and one that is always on.In my truck I have an always on 12 Volt cigar lighter socket. Also, you can have your dealer wire in a fuse protected auxiliary 12 Volt socket for you. They can also wire in a pair of 12 Volt wires and you can custom connect them to the panel or operate any other type of 12 Volt devices.--I would recommend this solar panel for battery maintenance. I found with the proper adapters it would be possible to put a number of these panels in parallel to have higher current.I have a friend with a large mobile trailer home and he wired up 20 panels in parallel to charge a bank of 12 Volt Lithium ION batteries. He is able to run his lighting, a computer, an RV fridge, and an HD TV with a sound system. All is using 12 Volts. His cooking and grilling is using propane.
gerry k
Reviewed in Canada on December 13, 2024
Waiting for 25 below to see how it goes. So far it is for sure keeping my very old struggling battery topped right up. Everything you need in the box is good materials.
gerry k
Reviewed in Canada on December 13, 2024
Waiting for 25 below to see how it goes. So far it is for sure keeping my very old struggling battery topped right up. Everything you need in the box is good materials.
Joe C
Reviewed in the United States on October 21, 2024
Originally to get the immediate use from these (I ordered two), I simply attached the cigarette lighter connector to the panel and plugged it in. This worked perfectly. So recently I decided to use the direct battery connector so I could just unplug the panel when I didnt need it, but when I went to connect it, I noticed the red wire (positive) from the panel was connecting to the black wire side of the direct battery connector plug. This would result in battery current flowing backwards through the panel. I know this as I have a good sized solar setup on the house going to batteries. The lighter plug seems to be wired correctly as red connects to red. In all the other plugs for direct connection to the battery or the alligator clips to the battery, the connection would be red to black, which would be a bad thing.I could simply reverse the direct battery plug to connect the black to the battery positive and red to the battery negative, but people who dont know may find themselves dealing with a direct short, possibly burning up the panel or worse. I suppose most people would use the lighter plug connection, and that seems to be the only correct one, but I do wonder about the others. i did verify this with a multimeter as well, the panel is putting out 17 volts, and red is positive.
Joe C
Reviewed in the United States on October 21, 2024
Originally to get the immediate use from these (I ordered two), I simply attached the cigarette lighter connector to the panel and plugged it in. This worked perfectly. So recently I decided to use the direct battery connector so I could just unplug the panel when I didnt need it, but when I went to connect it, I noticed the red wire (positive) from the panel was connecting to the black wire side of the direct battery connector plug. This would result in battery current flowing backwards through the panel. I know this as I have a good sized solar setup on the house going to batteries. The lighter plug seems to be wired correctly as red connects to red. In all the other plugs for direct connection to the battery or the alligator clips to the battery, the connection would be red to black, which would be a bad thing.I could simply reverse the direct battery plug to connect the black to the battery positive and red to the battery negative, but people who dont know may find themselves dealing with a direct short, possibly burning up the panel or worse. I suppose most people would use the lighter plug connection, and that seems to be the only correct one, but I do wonder about the others. i did verify this with a multimeter as well, the panel is putting out 17 volts, and red is positive.
Rob Ballard
Reviewed in Australia on February 6, 2023
Good product does what is says. Fast delivery.
Rob Ballard
Reviewed in Australia on February 6, 2023
Good product does what is says. Fast delivery.
nut 4 squirrel
Reviewed in the United States on September 4, 2020
As the built-in charge controller comes with indicator lights, if find the LED on the 12 volt plug to be redundant and an energy drain. The unit comes with a blocking diode, which is good, but the plug LED is not blocked and uses juice 24/7 making a net daily charge very slow. I took the plug apart and cut out the LED. That way I can leave the charger plugged in continuously with little overnight loss. A magnetic strip would be nice to help anchor it to the vehicle. Seems well built and bullet proof. Slow to charge, discharged batteries, I don't there will be any problem in overcharging them.Revised: On further research it appears having the SAE plug reversed is often used, to the extent that SAE polarity reversal adapters are commonly available.I just figured out that the panel and the supplied accessories are wire backwards to SAE normal. This means for example, that when you attach the battery clips to your car battery, you risk having the exposed SAE pin, now positive, to ground out on any part of the car. This will cause sparks and possible burns and even explosion due to battery hydrogen. Plus the accessories won't work, possibly dangerously, with other SAE products like battery chargers.
nut 4 squirrel
Reviewed in the United States on September 4, 2020
As the built-in charge controller comes with indicator lights, if find the LED on the 12 volt plug to be redundant and an energy drain. The unit comes with a blocking diode, which is good, but the plug LED is not blocked and uses juice 24/7 making a net daily charge very slow. I took the plug apart and cut out the LED. That way I can leave the charger plugged in continuously with little overnight loss. A magnetic strip would be nice to help anchor it to the vehicle. Seems well built and bullet proof. Slow to charge, discharged batteries, I don't there will be any problem in overcharging them.Revised: On further research it appears having the SAE plug reversed is often used, to the extent that SAE polarity reversal adapters are commonly available.I just figured out that the panel and the supplied accessories are wire backwards to SAE normal. This means for example, that when you attach the battery clips to your car battery, you risk having the exposed SAE pin, now positive, to ground out on any part of the car. This will cause sparks and possible burns and even explosion due to battery hydrogen. Plus the accessories won't work, possibly dangerously, with other SAE products like battery chargers.
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