--- product_id: 347146650 title: "Solar Battery Charger Maintainer, 12 Volt Solar Panel Solar Trickle Car Battery Charger Maintainer 20W, Built-in MPPT Charge Controller for Trailer, Cars, Trucks, caravans, Boats, Motorcycles" brand: "kqiang" price: "€ 40.67" currency: EUR in_stock: true reviews_count: 8 url: https://www.desertcart.sk/products/347146650-solar-battery-charger-maintainer-12-volt-solar-panel-solar-trickle store_origin: SK region: Slovakia --- # 12V Compatibility 20W Power Output Built-in Circuit Protection Solar Battery Charger Maintainer, 12 Volt Solar Panel Solar Trickle Car Battery Charger Maintainer 20W, Built-in MPPT Charge Controller for Trailer, Cars, Trucks, caravans, Boats, Motorcycles **Brand:** kqiang **Price:** € 40.67 **Availability:** ✅ In Stock ## Summary > Charge Ahead with Solar Power! ☀️ ## Quick Answers - **What is this?** Solar Battery Charger Maintainer, 12 Volt Solar Panel Solar Trickle Car Battery Charger Maintainer 20W, Built-in MPPT Charge Controller for Trailer, Cars, Trucks, caravans, Boats, Motorcycles by kqiang - **How much does it cost?** € 40.67 with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/347146650-solar-battery-charger-maintainer-12-volt-solar-panel-solar-trickle) ## Best For - kqiang enthusiasts ## Why This Product - Trusted kqiang brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Safety First:** Advanced circuit protection prevents overcharging and reverse connections. - • **Durable & Waterproof:** Crafted for long-term outdoor use, rain or shine. - • **Lightweight & Portable:** Weighs only 0.6 pounds for easy transport. - • **Versatile Applications:** Perfect for cars, boats, and even your mobile devices. - • **Plug & Play Convenience:** No professional installation needed—just plug it in and let the sun do the work! ## Overview The Solar Battery Charger Maintainer is a lightweight, durable, and waterproof 20W solar panel designed to trickle charge 12V batteries for various applications, including cars, trucks, and boats. With built-in MPPT charge controller and excellent circuit protection, it ensures safe and efficient charging without the need for professional installation. ## Description Product description Description: --It can be used as an alternative charger for cars, trucks, caravans, boats, motorcycles, RV batteries or any 12V lead acid battery. --It is waterproof and can be placed outdoors. There are built-in diodes in the alligator clip to help prevent reverse charging. You can install this item in your car and keep charging during the day. --Provides 2 alligator clips and charging cable for all kinds of equipment, emergency lights, advertising lights, traffic lights, electric fans, solar water pumps, motorcycles, boats, etc. --Applicable to: mobile phones, mobile power packs, laptops, tablets, GPS, cameras, USB fans, USB lights, etc. Specification： --Material: Panel: Monocrystalline silicon --Size: 21.5*18.5cm --Power: 20W --USB output: 5V, 2A (maximum) --Solar output: 12V --Solar panel type: solar --Conversion efficiency: 23-24% --Product interface: USB, DC --Output interface: DC / dual U --No-load voltage: 14V DC and USB 5.2V --Load voltage: 12V DC and USB 5.0V --USB 2.0 output: 5V 600mA Instructions： 1. First, the solar panel surface of the solar panel faces the sun, and the back USB output surface has a red light indicating that the current output is normal. 2. Plug the USB 2.0 cable into the USB output port, and the USB output standard 5.0V DC voltage. 3. Connect the mated DC alligator clip, and the alligator clip outputs a DC voltage of 12v. Note: The positive and negative crocodile clips cannot be connected or touched during use, which may cause short-term heat or burn the line. 4. With the mountaineering bag, this product is suitable for low-power products with 5V power supply or low-power products with 12V power supply. Package includes: 1x Solar panel. 1x Alligator clip. 1x Cig ## Features - ♦ Light, Simple, Durable♦---Lightweight and easy to carry. Solar battery charger weighs only 0.6 pounds and measures 8.46*7.28 inches. Made of waterproof and durable material, designed for long-term use. - ♦ Excellent Circuit Protection♦---Excellent safety circuit is built in the junction box, which can not only prevent the battery from overcharging and reverse charging but also protect and prompt the reverse connection of the circuit. - ♦ Plug & Play♦---Heavy-duty 2.1mm x 5.5mm DC plug with an extension cord. The accessories are complete, the installation is convenient, and no professional knowledge is required. There is no need for additional maintenance of the kit, no electricity bills, as long as it faces the sun, the charger will generate electricity to trickle charge the battery. - ♦ Applications♦---For mobile phones, mobile power packs, laptops, tablets, GPS, cameras, USB fans, USB lights, etc. - ♦If our product doesn't work well or exist any problem.Please kindly contact customer service. ## Product Details - **Brand:** Kqiang - **Connectivity Technology:** USB - **Connector Type:** usb 2.0 - **Compatible Devices:** GPS - **Included Components:** MPPT - **Special Feature:** Lightweight Design - **Input Voltage:** 5 Volts - **Amperage:** 2 Amps - **Total USB Ports:** 1 - **Wattage:** 20 watts ## Images ![Solar Battery Charger Maintainer, 12 Volt Solar Panel Solar Trickle Car Battery Charger Maintainer 20W, Built-in MPPT Charge Controller for Trailer, Cars, Trucks, caravans, Boats, Motorcycles - Image 1](https://m.media-amazon.com/images/I/61SfmxAoSQS.jpg) ![Solar Battery Charger Maintainer, 12 Volt Solar Panel Solar Trickle Car Battery Charger Maintainer 20W, Built-in MPPT Charge Controller for Trailer, Cars, Trucks, caravans, Boats, Motorcycles - Image 2](https://m.media-amazon.com/images/I/71yC44E2pqL.jpg) ![Solar Battery Charger Maintainer, 12 Volt Solar Panel Solar Trickle Car Battery Charger Maintainer 20W, Built-in MPPT Charge Controller for Trailer, Cars, Trucks, caravans, Boats, Motorcycles - Image 3](https://m.media-amazon.com/images/I/61ndMtYzuQS.jpg) ![Solar Battery Charger Maintainer, 12 Volt Solar Panel Solar Trickle Car Battery Charger Maintainer 20W, Built-in MPPT Charge Controller for Trailer, Cars, Trucks, caravans, Boats, Motorcycles - Image 4](https://m.media-amazon.com/images/I/51+Lm0Py0TS.jpg) ![Solar Battery Charger Maintainer, 12 Volt Solar Panel Solar Trickle Car Battery Charger Maintainer 20W, Built-in MPPT Charge Controller for Trailer, Cars, Trucks, caravans, Boats, Motorcycles - Image 5](https://m.media-amazon.com/images/I/51UU-ltr72S.jpg) ## Customer Reviews ### ⭐⭐⭐⭐⭐ Works well for constant solar power. *by T***S on September 12, 2023* Purchased this as power source for a pool ionizer. I cant say enough on how good this works. It has usb port in it and does come with other charging/power options. Never had a problem all summer. ### ⭐⭐⭐⭐ Excellent item, however missing suction cups to affix to windshield. /power cord too short *by F***1 on October 14, 2022* Due to covid I have not been driving my car every day. This solar charger is needed to keep battery from draining over time. This 20 w solar charger will surpass the 5 w I had previously. I found the wire to the cigarette lighter outlet is too short and had to purchase an extension cord /Also missing suction cups to affix to windshieldhttps://www.amazon.com/gp/product/B00FTGH38W/ref=ppx_od_dt_b_asin_title_s00?ie=UTF8&psc=1 ### ⭐ 20 Watt Solar panels might produce 5 watts not 20 *by J***R on February 15, 2023* I purchased (2) 20 watt solar panels and connected them in parallel and in bright Sun will not power a 10 Watt camera. It drains my battery with both 20 Watt Solar panels in direct sunlight so I’m guessing the size of these are not even pushing 1/4 the power they say they are to produce the 20 watts they say they are.Buyer beware ## Frequently Bought Together - Kqiang Solar Battery Charger Maintainer, 12 Volt Solar Panel Solar Trickle Car Battery Charger Maintainer 20W, Built-in MPPT Charge Controller for Trailer, Cars, Trucks, caravans, Boats, Motorcycles - ECO-WORTHY Solar Car Battery & Trickle Charger 5W Solar Panel Power 12V Batteries Maintainer Portable Waterproof Built-in Blocking Diode for Automotive Lawn Mower Camping Car Boat Motorcycles Truck - POWOXI 3.3W-Solar-Battery-Trickle-Charger-Maintainer -12V Portable Waterproof Solar Panel Trickle Charging Kit for Car, Automotive, Motorcycle, Boat, Marine, RV, Trailer, Powersports, Snowmobile, etc. --- ## 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.sk/products/347146650-solar-battery-charger-maintainer-12-volt-solar-panel-solar-trickle](https://www.desertcart.sk/products/347146650-solar-battery-charger-maintainer-12-volt-solar-panel-solar-trickle) --- *Product available on Desertcart Slovakia* *Store origin: SK* *Last updated: 2026-05-22*