SOLPERK 30W Solar Battery Charger Solar Battery Maintainer + Upgrade 10A MPPT Charge Controller + Adjustable Mount Bracket for Car RV Boat Motorcycle，12V Waterproof Solar Panel Kit Trickle Charging

13 reviews for SOLPERK 30W Solar Battery Charger Solar Battery Maintainer + Upgrade 10A MPPT Charge Controller + Adjustable Mount Bracket for Car RV Boat Motorcycle，12V Waterproof Solar Panel Kit Trickle Charging

1. 

   Rated 5 out of 5

   Eugene45 – December 23, 2024

   
   I purchased this to help keep the battery in my travel trailer charged. I don’t use the trailer much yet but the lights have worked whenever I do without fail. It was an easy straightforward install and the cord was long enough to run it into the battery compartment from the roof. It even charges on cloudy days. The brace it comes with is a good idea but could be a bit shorter. I can see it working great for applications where one would need to get up over something but to me it sticks up too far on my roof. I would have preferred something less visible from the ground. For the price it’s a good buy I think.

2. 

   Rated 5 out of 5

   Larry – December 17, 2024

   
   I’ve purchased several of these over the years to maintain a charge on batteries over the winter in Northern MN. I don’t even angle them… just flat against siding of shed… gets about 1/2 day of sunshine … through tree branches… not the ideal setup but the charges still work! I like the fact that there are multiple plug and play connectors… clamps, wing nut connectors. They have not failed to maintain a battery charge over the winter where it gets 10 – 20 below zero..

3. 

   Rated 4 out of 5

   Jody L. Griswood – January 30, 2025

   
   The SOLPERK Solar Panel Kit 20W 12V proves to be a highly efficient and reliable solution for keeping my RV battery charged. Its performance is impressive, and the upgraded controller, along with the adjustable mount bracket, adds to its versatility. However, I encountered a minor issue with the length of the cords. Since my RV is stored under covered parking and the battery is located further back in the side compartment, the existing cord length doesn’t quite reach from the ideal placement of the panel at the front, where it gets the most sun. Despite this inconvenience, the overall functionality and efficiency of the kit are commendable. A longer cord would make this product perfect

4. 

   Rated 5 out of 5

   Roy Jitdanai – January 6, 2025

   
   This is a good quality built charger with rigid aluminum frame. It is working even with little sunlight.It came in a neatly and carefully packed package. The price is very good for a 50W charger with a controller.

5. 

   Rated 5 out of 5

   Kasea – January 13, 2025

   
   It charge my battery very well no problem easy to use it’s waterproof

6. 

   Rated 5 out of 5

   kkh – January 22, 2025

   
   Run a sporting clays course and am slowly replacing all of my solar panels with these. So far these panels are enough to keep batteries charged in cold winter weather.

7. 

   Rated 5 out of 5

   FLHorseman – January 10, 2025

   
   I needed a new solar panel for my ranch gate, far away from electricity. I had the original solar panel tjhat came with the gate actuator. It was failing and ruined two batteries. After I got this panel and installed, my problems dissapeared. Having the separate until with the LED lights that tells you the state of charge of the battery is a very nice touch. If you have a gate opener and need a solar panel this is the one to get.

8. 

   Rated 4 out of 5

   Benjamin F. Nead – December 6, 2020

   
   First off, I never intended to use just one of these panels to charge my 12V lead acid car battery with the included PWM charge controller and attached wiring harness. Rather, I intend to buy multiple examples of these panels and configure them with a more comprehensive MPPT controller, LiFePO4 battery and inverter in a carry-in-car and set-up-quickly portable application. The 23.1″ (541mm) square footprint is ideal for the portability I need and the price is certainly right.Fortunately, the fit and finish of the panel itself is very good. This sort of thing would have easily cost twice as much just a few short years ago. There are a few rough edges on the corners of the aluminum framing, but that’s a minor point. The individual cells look to be very cleanly assembled, topped with a nice piece of glass and the caulking sealant job along the interior of the frame is very clean.I knew from the Amazon listing, however, that the panel would come with a 6′ long piece of spindly zip cord terminated with a 2-pin trailer connector. The good news is that the junction box termination on the back of the panel is of the conventional type with a water-proof seal. It’s going to be relatively easy to solder in better cabling with standard MC-4 connectors.As it turns out, the attached cable (basically 14 gauge red/black lamp cord) had a short . . . zero voltage and amp readings on the multimeter at the connector end! Readings off the tabs inside the junction box (easy to pry off the back cover with a flat blade screwdriver) indicates, though, that the panel outputs 23.6V and 2.5A on my quickly-assembled back yard test rig (picture attached.) That’s very good. I tested at Noon with reasonably perpendicular panel/Sun angling on a cloudless day. Ambient temperature was approximately 70° F / 21° CNext, I trimmed/stripped the 14 gauge wires to within about 1 foot of the junction box and got similarly good readings. Subsequently, I found out that the short was in the remaining (now detached) ~5 feet of cable somewhere along the black/negative wire. I did not test the included PWM charge controller.If it was just for the panel itself, I’d give the Solperk SK-M50W a solid 5 stars. I’m knocking it down to 4 stars because the wiring harness is terrible and, in my case, non-functioning out of the box. I will be buying more of these panels for my above-described application, knowing that the other included bits will be going into the waste can and I’ll need to solder in suitable 10 gauge wires at the junction box end, terminated at the other end with real MC-4 connectors. The additional attached photo here shows the back of the panel (junction box cover removed) with labeling. In case the resolution of the photo isn’t good enough to clearly see, the specifications shown on the label are as follows . . .Solperk Model: SK-M50W solar panelMaximum Power (Pmax) 50WMaximum Power Voltage (Vmp) 18VMaximum Power Current (Imp) 2.78AOpen Circuit Voltage (Voc) 21.6VShort Circuit Current (Isc) 3.06AMaximum System Voltage 600VDCNominal Operating Cell Temp. (NOCT) 45+/-2°CPower Tolerance +/-5%Application Class Class AWeight 7.2lbsDimensions 21.3 x 21.3 x 1 inchAll technical data at Standard Test Condition (STC).STC Irradiance 1000W/m2. Cell Temperature 25°C. Air Mass AM=1.5

   
9. 

   Rated 3 out of 5

   Fatima – July 25, 2023

   Damaged
   First attempted was completely cracked. Item need to be shipped with better bubble wrap. Bubble wrap to thin. I did get a refund and order another one and my husband loves it.

   
10. 

    Rated 4 out of 5

    Michel Mokbel – November 19, 2023

    Good solar brand
    Good quality

11. 

    Rated 5 out of 5

    Laurie Rothweld – August 31, 2024

    It works!
    I purchased with the hope that this charger would keep my car battery charged over several months while I was away from home. I have now used it twice, both for two month periods where the car was parked under a carport. Even though the charger was not in full sun, it has worked and the battery has been fully charged each time on my return.

12. 

    Rated 5 out of 5

    Singapore – September 23, 2023

    Excellent
    Good

13. 

    Rated 5 out of 5

    Bob – January 31, 2024

    Great Solar battery trickle charger
    Will be perfect for Holiday unit to keep stored Suzuki ‘s battery fully charged and prolong its working life