[Multiple Compatibility] Perfect solar power kit for a variety of off-grid applications like shed, cabin, gate opener, etc where 12V battery is used, as well as to charge and maintain AGM, Flooded, GEL, Deep Cycle and Seal Lead Acid, etc batteries in the car, Rv, boat, marine, trailer, camper, pump, etc.
[Durable & Strong] Made of high efficient solar cells, tempered solar glass, and strong aluminum frame, withstand extreme weather conditions like UV, anti-rusting, and erosion, IP65 waterproof, well built for at least 10 years.
[Intelligent Charging] Optimized 3-stages charging algorithm allows to charge the battery more efficiently, and prevent the battery from overcharge, over-discharge, over-voltage, short circuit, etc, fully protect battery and extend the lifetime.
[Visual Monitor] Visual bright LED indicators help to monitor battery conditions and better understand the status of solar panel and load. Exclusively equipped three working modes for load, allowing to set up the load to work under dusk to dawn automatically plus working hours according to personal requirement, very practical and useful.
[Easy to Use] Compatible with multiple mounting brackets- adjustable flat mount bracket, Z brackets & adjustable pole mount brackets. Plug & play SAE connector, easy to install, and virtual free maintenance. Backed by SUNER POWER extended warranty + professional technical supports.
Additional information
Brand
SUNER POWER
Material
Aluminum
Item Weight
3.2 pounds
Efficiency
High Efficiency
Style
Watts
Connector Type
Usb
AC Adapter Current
10 Amps
Maximum Voltage
12 Volts
Maximum Power
20 Watts
Product Dimensions
16.5"L x 13"W x 0.7"H
Manufacturer
SUNER POWER
7 reviews for SUNER POWER 20 Watts Mono Crystalline 12V Solar Panel Kits – Waterproof 20W Solar Panel + Upgraded 10A Solar Charge Controller + 3-PCS SAE Cable…
Rated 5 out of 5
William –
I got the panel, put as meter on it, got 19.87 volts. Controller connected, yellow light came on (no explanation in the minimal paper work what that meant) Output of the controller was only 4.3 volts! Connected to a battery to charge, light went out. Multiple emails sent to company (they have no phone!!!) went unanswered to after five days. Item returned to Amazon. Amazon refunded my money the day UPS got the package which is excellent, though the money was put in an Amazon ‘gift card’ and not refunded to my credit card.
Edit: 12/7/2019 – The company reached out to me after the return was completed. They sincerely wanted to make things right. They sent (at no charge) a 20 watt panel/controller kit and asked if I’d re-review. I agreed. The kit arrived yesterday. I set it up temporarily, being extra careful to follow the directions. They are not written by an American and therefore, loose something in translation unfortunately. The battery I used was a little low, 12.6V. I attached the controller to the battery FIRST and then the panel to the controller per the instructions. I rechecked the voltage at the battery and got 12.73V, which means it is charging. The was at 11:30AM with a winter sun (low on the horizon, panel vertical and not optimally positioned). So it works. I’d like to see the voltage rise further and will recheck tomorrow and the next day. Ideally, it will be in the 13V range indicating a full battery on a float charge. I will also check for a precipitous drop in battery voltage (the blocking diodes should prevent this) after cloudy days. To use to charge a item like my tractor, it seems I have to disconnect the panel from the controller and then disconnect the tractor from the controller. Not particularly convenient. I would think you could leave it connected to the controller all the time being careful (read being responsible) not to short the output.
I suspect my problem with the first panel kit was a bad controller as only one LED lit and it was a faint yellow. All LEDs light now as expected. I have changed my rating from one star to four. If we hit 13V after a day of sun and no drop in voltage after a cloudy day, I’ll bump it up another star!
Edit2: 12/18/2019 Suner was disappointed I could not make a better review and they (Mason) was committed to doing right. Seems the controller I got was bad and the new one, worked as expected. The paperwork with the panel is not clear, a problem in technical writing from China to the US. Also, an email sent is responded to most likely while you are in bed at night, so it can be a drawn out process to resolve issues. But I can assure you, they will take care of you. Patience. My battery now has a full charge (13.7 volts float) in mediocre sun. Here are the key concepts. The battery must be somewhat charged, 11.5 volts or better (less is essentially a dead battery). You must connect the battery first. Doing so, the controller ‘figures out’ the battery voltage (12 or 24). After a few seconds (two lights will come on), the lights change and you can connect the panel. Then after a few seconds, all three lights will come on. You are in business! If you disconnect the battery (like I do, it is maintaining a tractor) you must follow the procedure. Controller disconnected from EVERYTHING. Connect the battery, wait for two lights, , connect the panel, all three will light. Suner earned the five stars!
Rated 5 out of 5
David Diaz –
Worked so well in my trailer camping I bought a second one! I charge 2- 12 V batteries and use a converter for radio,coffee fan and charge batteries. Also runs my battery tender for my motorcycle all winter!
Rated 4 out of 5
Caroline Fix-it-Lady –
Obviously I’m going to hook this up to multiple units since it will handle it. But with the cable’s being so short I would have to take all the batteries out of the tractor, golf cart, moped in order to hook them all up. If they gave you some cable lengths you would not have to do this.
Rated 5 out of 5
Thomas Albers –
I like that I don’t have to take the boat battery to the shop to get it charged.. I Can leave it on the boat all summer long if I want to. I run lights, water pumps, phone charger, and trolling motor and everything is good.. the battery stays charged
Rated 5 out of 5
Caroline Fix-it-Lady –
This product came all in one package. It has just about everything you need to install this unit; he only thing missing is the screws to attach it to something. I put the panel on my shed’s front wall, under a roof overhang so it’s protected from falling tree limbs.
Installation is easy. You can use screws through the face of the frame or the sides of the frame. Everything is plug and play after that.
But be smart. Read the instructions before connecting anything. You must first attach the controller to a battery before connecting to the PV panel or you will hurt the controller.
I connected it to a dead 190 cca lawnmower battery. Despite being a cloudy day here, the battery went from 10 volts to 12.6 volts in one hour. (In case you didn’t know, 12.6 volts is what a properly charged measures.) LED lights clearly indicate when the battery is dead or fully charged. (See pictures). This is both a battery charger and battery tender, meaning the controller keeps the unit from overcharging your battery.
There are several options for how to connect to the battery. For testing I simply used the clips, but a ring terminal option is included. There is also and end that let’s you connect to wires as well.
You can also connect more that one battery (2 six volt batteries can be charged if wired in series; more than one 12 volt can be charged if the batteries are the same type and age. Again, see the instructions.)
There is an options to add lights. The controller has timer settings in one hour increments or dusk to dawn. I will be adding these. I was really surprised at how many settings were available. You could easily use this to power site/ landscape lighting.
Two slightly negative comments:
1) The mounting instructions aren’t good. You are left on your own to figure things out. I wasn’t sure if I had to angle the panel into the sun or if it would work fully vertical (actually installed it these way).
2) The first unit shipped had a damaged wiring attachment point on the panel. The good news is one phone call and they sent a whole new unit right away, so it only delayed me a few days. So the negatives are small.
I would definitely buy this again and recommend it to anyone, too. Nice unit that charges fast. And I am excited about using it to run lights, too. I originally only wanted it as a battery tender for my lawnmower and once I saw how powerful it is and it’s ready built to handle lights, too, I am excited about adding lights. Once that is done, if I need to update thus review I will. But on my first day, I was thoroughly impressed.
Rated 4 out of 5
T. Luxem –
This was insanely easy to setup. However either I have a defective unit or it’s shutting down / not producing power. That said I am using this with a lithium battery but had zero issues for 5 days except not enough power. Now I’m getting little out of it and I’m in sunny south florida. So not sure if something failed.
Rated 5 out of 5
John –
My gate is pretty much shaded most of the day, and I was having trouble keeping my opener battery charged as there wasn’t a good out of the way spot for a solar charger that got much light. So I used this panel, combined with the Suner Power adjustable pole mounting bracket and mounted it to the middle of the gate. Now it gets enough light to keep the battery charged and is easy to clean. The charge controller seems much better quality than most I’ve had.
William –
I got the panel, put as meter on it, got 19.87 volts. Controller connected, yellow light came on (no explanation in the minimal paper work what that meant) Output of the controller was only 4.3 volts! Connected to a battery to charge, light went out. Multiple emails sent to company (they have no phone!!!) went unanswered to after five days. Item returned to Amazon.
Amazon refunded my money the day UPS got the package which is excellent, though the money was put in an Amazon ‘gift card’ and not refunded to my credit card.
Edit: 12/7/2019 – The company reached out to me after the return was completed. They sincerely wanted to make things right. They sent (at no charge) a 20 watt panel/controller kit and asked if I’d re-review. I agreed. The kit arrived yesterday. I set it up temporarily, being extra careful to follow the directions. They are not written by an American and therefore, loose something in translation unfortunately.
The battery I used was a little low, 12.6V. I attached the controller to the battery FIRST and then the panel to the controller per the instructions. I rechecked the voltage at the battery and got 12.73V, which means it is charging. The was at 11:30AM with a winter sun (low on the horizon, panel vertical and not optimally positioned). So it works. I’d like to see the voltage rise further and will recheck tomorrow and the next day. Ideally, it will be in the 13V range indicating a full battery on a float charge. I will also check for a precipitous drop in battery voltage (the blocking diodes should prevent this) after cloudy days.
To use to charge a item like my tractor, it seems I have to disconnect the panel from the controller and then disconnect the tractor from the controller. Not particularly convenient. I would think you could leave it connected to the controller all the time being careful (read being responsible) not to short the output.
I suspect my problem with the first panel kit was a bad controller as only one LED lit and it was a faint yellow. All LEDs light now as expected. I have changed my rating from one star to four. If we hit 13V after a day of sun and no drop in voltage after a cloudy day, I’ll bump it up another star!
Edit2: 12/18/2019 Suner was disappointed I could not make a better review and they (Mason) was committed to doing right. Seems the controller I got was bad and the new one, worked as expected. The paperwork with the panel is not clear, a problem in technical writing from China to the US. Also, an email sent is responded to most likely while you are in bed at night, so it can be a drawn out process to resolve issues. But I can assure you, they will take care of you. Patience. My battery now has a full charge (13.7 volts float) in mediocre sun.
Here are the key concepts. The battery must be somewhat charged, 11.5 volts or better (less is essentially a dead battery). You must connect the battery first. Doing so, the controller ‘figures out’ the battery voltage (12 or 24). After a few seconds (two lights will come on), the lights change and you can connect the panel. Then after a few seconds, all three lights will come on. You are in business! If you disconnect the battery (like I do, it is maintaining a tractor) you must follow the procedure. Controller disconnected from EVERYTHING. Connect the battery, wait for two lights, , connect the panel, all three will light. Suner earned the five stars!
David Diaz –
Worked so well in my trailer camping I bought a second one!
I charge 2- 12 V batteries and use a converter for radio,coffee fan and charge batteries. Also runs my battery tender for my motorcycle all winter!
Caroline Fix-it-Lady –
Obviously I’m going to hook this up to multiple units since it will handle it. But with the cable’s being so short I would have to take all the batteries out of the tractor, golf cart, moped in order to hook them all up. If they gave you some cable lengths you would not have to do this.
Thomas Albers –
I like that I don’t have to take the boat battery to the shop to get it charged.. I Can leave it on the boat all summer long if I want to. I run lights, water pumps, phone charger, and trolling motor and everything is good.. the battery stays charged
Caroline Fix-it-Lady –
This product came all in one package. It has just about everything you need to install this unit; he only thing missing is the screws to attach it to something. I put the panel on my shed’s front wall, under a roof overhang so it’s protected from falling tree limbs.
Installation is easy. You can use screws through the face of the frame or the sides of the frame. Everything is plug and play after that.
But be smart. Read the instructions before connecting anything. You must first attach the controller to a battery before connecting to the PV panel or you will hurt the controller.
I connected it to a dead 190 cca lawnmower battery. Despite being a cloudy day here, the battery went from 10 volts to 12.6 volts in one hour. (In case you didn’t know, 12.6 volts is what a properly charged measures.) LED lights clearly indicate when the battery is dead or fully charged. (See pictures). This is both a battery charger and battery tender, meaning the controller keeps the unit from overcharging your battery.
There are several options for how to connect to the battery. For testing I simply used the clips, but a ring terminal option is included. There is also and end that let’s you connect to wires as well.
You can also connect more that one battery (2 six volt batteries can be charged if wired in series; more than one 12 volt can be charged if the batteries are the same type and age. Again, see the instructions.)
There is an options to add lights. The controller has timer settings in one hour increments or dusk to dawn. I will be adding these. I was really surprised at how many settings were available. You could easily use this to power site/ landscape lighting.
Two slightly negative comments:
1) The mounting instructions aren’t good. You are left on your own to figure things out. I wasn’t sure if I had to angle the panel into the sun or if it would work fully vertical (actually installed it these way).
2) The first unit shipped had a damaged wiring attachment point on the panel. The good news is one phone call and they sent a whole new unit right away, so it only delayed me a few days. So the negatives are small.
I would definitely buy this again and recommend it to anyone, too. Nice unit that charges fast. And I am excited about using it to run lights, too. I originally only wanted it as a battery tender for my lawnmower and once I saw how powerful it is and it’s ready built to handle lights, too, I am excited about adding lights. Once that is done, if I need to update thus review I will. But on my first day, I was thoroughly impressed.
T. Luxem –
This was insanely easy to setup. However either I have a defective unit or it’s shutting down / not producing power. That said I am using this with a lithium battery but had zero issues for 5 days except not enough power. Now I’m getting little out of it and I’m in sunny south florida. So not sure if something failed.
John –
My gate is pretty much shaded most of the day, and I was having trouble keeping my opener battery charged as there wasn’t a good out of the way spot for a solar charger that got much light. So I used this panel, combined with the Suner Power adjustable pole mounting bracket and mounted it to the middle of the gate. Now it gets enough light to keep the battery charged and is easy to clean. The charge controller seems much better quality than most I’ve had.