--- product_id: 255525018 title: "SOLPERK 20W Solar Panel，12V Solar Panel Charger Kit+8A Controller， Suitable for Automotive, Motorcycle, Boat, ATV, Marine, RV, Trailer, Powersports, Snowmobile etc. Various 12V Batteries. (20W Solar" brand: "solperk" price: "£91.99" currency: GBP in_stock: true reviews_count: 5 url: https://www.desertcart.co.uk/products/255525018-solperk-20w-solar-panel-12v-solar-panel-charger-kit-8a store_origin: GB region: United Kingdom --- # SOLPERK 20W Solar Panel，12V Solar Panel Charger Kit+8A Controller， Suitable for Automotive, Motorcycle, Boat, ATV, Marine, RV, Trailer, Powersports, Snowmobile etc. Various 12V Batteries. (20W Solar **Brand:** solperk **Price:** £91.99 **Availability:** ✅ In Stock ## Quick Answers - **What is this?** SOLPERK 20W Solar Panel，12V Solar Panel Charger Kit+8A Controller， Suitable for Automotive, Motorcycle, Boat, ATV, Marine, RV, Trailer, Powersports, Snowmobile etc. Various 12V Batteries. (20W Solar by solperk - **How much does it cost?** £91.99 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/255525018-solperk-20w-solar-panel-12v-solar-panel-charger-kit-8a) ## Best For - solperk enthusiasts ## Why This Product - Trusted solperk brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Description SOLPERK 20W Solar Panel，12V Solar Panel Charger Kit+8A Controller， Suitable for Automotive, Motorcycle, Boat, ATV, Marine, RV, Trailer, Powersports, Snowmobile etc. Various 12V Batteries. (20W Solar ## Features - 💡[High-efficiency solar panel] Solar battery charger is to convert sunlight into electric energy and charges the battery. The more the sunlight is, the higher the charging efficiency is. The charger will generate current to trickle charge the battery that prevent the loss current of the battery in storage or standby process. 💡[Charger and Maintenance Device] This product is a solar battery charger and maintainer. It can safely charge and maintain various 12V batteries such as Wet, Gel, MF, EFB and AGM. In addition, it is also suitable for any car, motorcycle, ship, tractor, RV, Powersports, snowmobiles, trucks, shed, cabin, gate opener, etc. 💡[Full-automatic intelligent charging and maintenance Controller] Intelligent three-level charging mode, chip intelligent management charging and complete protection of battery, short circuit protection, open circuit protection, reverse protection, overload protection, under voltage protection, over charge protection to improve system efficiency and extend battery life . 💡[Easy to install and angle adjustable] The product is equipped with a bracket that adjusts the mounting angle for better sunlight reception. The product is light and easy to install for inexperienced people. The interfaces are plug-and-play. The kit needs no extra maintenance, no electricity. It’s energy conservation and environmental protection. 💡[More durable] Weatherproof Solar panels applies g a more durable aluminum alloy frame. It's windproof and rainproof, but it can't be immersed in water. Extended 12 months warranty + Lifetime technical support. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | SOLPERK | | Material | Glass | | Product Dimensions | 40"L x 13.2"W x 1"H | | Efficiency | High Efficiency | | Connector Type | USB | | Included Components | 1 solar panel + 1 charger controller + 1 mounting bracket +1 alligator clips +2 screws | | AC Adapter Current | 4.4 Amps | | Maximum Voltage | 12 Volts | | Maximum Power | 20 Watts | | Special Feature | High Efficiency Solar Panel, Smart Charge Controller, More Durable, Easy to Install & Angle Adjustable | | UPC | 674551501677 | | Manufacturer | SOLPERK | | Part Number | 20W Solar Panel | | Item Weight | 4.14 pounds | | Item model number | 20W | | Is Discontinued By Manufacturer | No | | Size | 20W Solar Panel | | Style | Modern | | Shape | Rectangular | | Power Source | Solar-Powered | | Voltage | 12 Volts | | Wattage | 20.00 | | Item Package Quantity | 1 | | Number Of Pieces | 1 | | Special Features | High Efficiency Solar Panel, Smart Charge Controller, More Durable, Easy to Install & Angle Adjustable | | Batteries Included? | No | | Batteries Required? | No | ## Product Details - **Brand:** SOLPERK - **Material:** Glass - **Product Dimensions:** 40"L x 13.2"W x 1"H - **Efficiency:** High Efficiency - **Connector Type:** USB ## Images ![SOLPERK 20W Solar Panel，12V Solar Panel Charger Kit+8A Controller， Suitable for Automotive, Motorcycle, Boat, ATV, Marine, RV, Trailer, Powersports, Snowmobile etc. Various 12V Batteries. (20W Solar - Image 1](https://m.media-amazon.com/images/I/71lEfizdjkL.jpg) ![SOLPERK 20W Solar Panel，12V Solar Panel Charger Kit+8A Controller， Suitable for Automotive, Motorcycle, Boat, ATV, Marine, RV, Trailer, Powersports, Snowmobile etc. Various 12V Batteries. (20W Solar - Image 2](https://m.media-amazon.com/images/I/81TZbUGFQWL.jpg) ![SOLPERK 20W Solar Panel，12V Solar Panel Charger Kit+8A Controller， Suitable for Automotive, Motorcycle, Boat, ATV, Marine, RV, Trailer, Powersports, Snowmobile etc. Various 12V Batteries. (20W Solar - Image 3](https://m.media-amazon.com/images/I/91E4pl0BrHL.jpg) ![SOLPERK 20W Solar Panel，12V Solar Panel Charger Kit+8A Controller， Suitable for Automotive, Motorcycle, Boat, ATV, Marine, RV, Trailer, Powersports, Snowmobile etc. Various 12V Batteries. (20W Solar - Image 4](https://m.media-amazon.com/images/I/71OHe-jofzL.jpg) ![SOLPERK 20W Solar Panel，12V Solar Panel Charger Kit+8A Controller， Suitable for Automotive, Motorcycle, Boat, ATV, Marine, RV, Trailer, Powersports, Snowmobile etc. Various 12V Batteries. (20W Solar - Image 5](https://m.media-amazon.com/images/I/81BDLoOc-hL.jpg) ## Available Options This product comes in different **Size** options. ## Questions & Answers **Q: As soon as i connect to a car battery the lights turn off. When i disconnect it from the battery the charging lights come on on the controller.???** A: Mind did the very same thing. It end up being the wires coming from the controller to the battery. I ran the black wire from the controller to the plus side of the batter and the red to the negative. The green light turned off and the red light stayed on. I know the battery isn't fully charged, so I think the problem maybe solved. **Q: Is the controller waterproof &, therefore, can it be mounted exposed to the elements?** A: I can confirm that the controller is not waterproof. I have used it without incident for a year, then forgot and left it out in the rain. I can't revive it, even after cleaning the PCB with rubbing alcohol. **Q: Can other brand solar panels (2 x 20w) be joined with this one prior to the charge controller with the proper SAE pigtail?** A: Yes, you can do that. The total power of solar panels should be within 100w. **Q: Will this run and bank (recharge from night use) enough energy for my rv furnace and pump?** A: How much energy does your RV use in one night? The panel produces 20 Watts in strong sunlight, figure 5-6 hours of good sun in a day, that"s approx 100 watt hours of energy. if your RV uses more than that in one night, the answer is no. If it uses less than 100 watt hours, then the answer is yes ## Customer Reviews ### ⭐⭐⭐ A comprehensive review of performance and build quality (20W system) *by D***D on Reviewed in Canada on 26 February 2021* Before writing this review, I had decided to wait awhile until I generated about a half a kilowatt of power with this 20W panel. This took about two weeks of clear/cloudy days, relatively equal in number, thankfully, especially for the purposes of testing.I'll begin by giving this product 5 stars right off the bat, out of fairness. You'll see why I rated it lower later on in the review. To begin, the panel arrived with questionably adequate padding, but was substantial enough to not have any damage whatsoever. Not removing a star for this. The panel itself is of expected quality, your average polycrystalline panel, with decent glass and a solid aluminum frame. Zero complaints on the quality of the panel; however, there is a small amount of rust that began propagating on the stand arm. This might have been my fault, and rust is extremely easy to fix, so this does not concern me.The charge controller is something that intrigued me before buying, but decided to give it a chance. This is where my complaints begin.The controller reads a max output of 8 amps, which is physically impossible to max out with a panel this size, as the 20w panel it comes with will produce no more than about 1.2 amps. the fact that it is advertised in large font on the face of the controller is potentially misleading to customers that do not understand the fundamentals of how these systems work. This just means that the circuitry in the controller can handle UP TO 8 amps, NOT PRODUCE 8 amps of current. I knew this going in. Not going to remove a star for this, however. Wouldn't be fair.I'd like to re-clarify before jumping into the problems of the controller that this is a MAINTAINER controller, not a dedicated battery charger. Understandably, you wouldn't really expect to fully charge a large car battery with something like this, but surprisingly enough, 20w is enough to fully charge your standard AGM battery from a minimum low voltage of 11.8v to a full 14.2 in about a day or a day and a half. The only problem is, the controller isn't even designed to charge your battery, just maintain it.This is where the biggest problem of the controller comes in. The cut-in voltage (as advertised) is 13 volts. This is a problem because like many batteries, the storage voltage fluctuates depending on the temperature. Where I am in Canada, a fully charged battery can dip below 13 volts easily even well above freezing temperatures, meaning that the charge controller supplied with this package simply will refuse to maintain the battery until it reads a voltage higher than 13 volts. Removing one star for this. There's literally no need to have a cut in voltage above the minimum battery voltage, especially when this panel is already capable of charging the battery to full, from "dead".Secondly, when I began testing the controller in an indoor, isolated environment (for science), it wouldn't even bring the battery up to the advertised full charge voltage of 14.2 volts. it would stop at about 13.5 and would only resume charging when disconnecting and reconnecting the PV panel, then the terminals, then reconnecting the terminals, and then the PV panel again (the sequence is important to prevent damage to the controller). Only then would it resume charging. Removing another star for this, as you would expect, you shouldn't need to intervene just to get it to work properly. To make sure this wasn't just a glitch, I discharged the battery a bit 3 times, still with the same issue.Because I had anticipated this controller might be problematic, I had also bought a Renogy Voyager controller to compare them side by side. I was extremely surprised to find that the included controller was only ever outputting 0.9 amps into the battery, yet when the panel was connected to the Renogy controller, would output the advertised amperage of 1.2. To test this, I made sure do it on a fully clear day, where maximum power generation was extremely consistent. I honestly could not understand the reasoning behind why the amperage output was lower on the included controller, and gave up trying to understand until I eventually dismantle it. I guess I'll remove another star, now at 2 stars, but I feel a bit guilty about this, so I'll look back into the positives.Aside from the controller that I replaced with a far more useful one, this panel actually performs very well when hooked up to a proper controller. It ACTUALLY WILL CHARGE A BATTERY FROM EMPTY (11.8v to 14.2v) if you do connect it to a better controller. Like I said earlier, it takes about 1 or 1.5 days to fully charge my single AGM car battery from its "dead voltage" (I use an optima yellowtop rated for 55ah, but realistically only about 45ah of usable power). The panel is nice, so I'm adding a star back. This concludes at three stars. If the price was lower, I'd give it another star. If the maintainer controller didn't cut in at such an unreasonably high voltage, I would give it another star. As far as the amperage output of the included controller goes, It probably isn't a huge issue for the customer it works well for, as again, it is designed to be a maintainer.All in all, I'm not really disappointed in this at all. I found a good use for it and it is compact enough to prop up whenever I need it.A little too little for a little too much, but satisfactory nonetheless. Maybe my controller was just a dud, like some other reviews. I'll have to dismantle and test every component to be sure, but for the sake of this review, I didn't prioritize it. ### ⭐⭐⭐⭐⭐ awesome *by S***L on Reviewed in Canada on 10 July 2021* nothing to not like, this solar panel is easy to use and keeps our lawn tractor charged up, very pleased ### ⭐⭐⭐⭐⭐ Fast charge *by L***Y on Reviewed in Canada on 10 October 2021* Used this product on the roof of my bike trailer to provide charging to an internal car battery that powered the 12v lighting system as well as the trickle charger for the bike battery. Works very well. ## Frequently Bought Together - SOLPERK 20W Solar Panel，12V Solar Panel Charger Kit+8A Controller， Suitable for Automotive, Motorcycle, Boat, ATV, Marine, RV, Trailer, Powersports, Snowmobile etc. Various 12V Batteries. (20W Solar - Whrsinlor 25 Foot SAE to SAE 2 Pin Quick Disconnect Harness,DC 12V Power Connector Plug Battery Charger SAE Power Extension Cable for Motorcycle,Car,Tractor,18 AWG Gauge + Dust Cap - AEISVIK Battery Charging Cables SAE TO SAE 12V-24V Quick Disconnect Extension Cable 2 Pin With Dust Cap DC Connection Cord Plug 12 Feet 16AWG Gauge for Camp Trailer Solar Panels Battrey --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.co.uk/products/255525018-solperk-20w-solar-panel-12v-solar-panel-charger-kit-8a](https://www.desertcart.co.uk/products/255525018-solperk-20w-solar-panel-12v-solar-panel-charger-kit-8a) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-06-10*