--- product_id: 625141005 title: "MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy" brand: "marbero" price: "£8.48" currency: GBP in_stock: false reviews_count: 5 url: https://www.desertcart.co.uk/products/625141005-marbero-21w-portable-solar-panel-foldable-solar-panel-charger-ip65 store_origin: GB region: United Kingdom --- # 1.32 lbs ultra-portable foldable design 21W max power output 23% solar conversion efficiency MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy **Brand:** marbero **Price:** £8.48 **Availability:** ❌ Out of Stock ## Summary > ☀️ Charge Ahead: Power Your Adventures with Smart Solar Energy! ## Quick Answers - **What is this?** MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy by marbero - **How much does it cost?** £8.48 with free shipping - **Is it available?** Currently out of stock - **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/625141005-marbero-21w-portable-solar-panel-foldable-solar-panel-charger-ip65) ## Best For - marbero enthusiasts ## Why This Product - Trusted marbero brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Smart & Safe Charging:** Built-in intelligent chip optimizes charging speed while protecting your devices from overcharge and overload—perfect for worry-free outdoor adventures. - • **Weatherproof & Rugged:** IP65-rated waterproof and dust-resistant Oxford cloth construction ensures durability through rain, dust, and heat up to 70°C. - • **Versatile Connectivity:** Dual USB A and DC 18V outputs support a wide range of devices from smartphones to portable speakers, keeping you powered in any scenario. - • **Compact & Ready to Roll:** Weighing just 1.32 lbs and folding down smaller than an iPad Pro, it fits effortlessly into your backpack or travel gear. - • **Power Up Anywhere, Anytime:** Harness 21 watts of clean energy with high-efficiency 23% monocrystalline solar cells for rapid device charging on the go. ## Overview The MARBERO 21W Portable Solar Panel is a foldable, lightweight charger featuring 23% high-efficiency monocrystalline cells, IP65 waterproof rating, and smart charging technology. Designed for outdoor enthusiasts, it delivers reliable power via USB and DC ports in both sunny and cloudy conditions, making it an essential companion for camping, travel, and emergency backup. ## Description Specifications:Model: SL21WWattage: 21WConversion Rate: 23%Folded Size: 6.3'' x 11.4'' 1.4''Unfolded Size: 26.8'' x 11.4'' 1.4''Weight: 1.32 lbsUSB A Outputs: 5V / 2.4ADC Output: 18V / 1.1AMaterial: Monocrystalline Silicon & Waterproof FabricOpen Circuit Voltage: 21.6V ± 5%Short Circuit Current: 1.26A ± 5%Operational Voltage: 18V ± 5%Operational Current: 1.17A ± 5% Operational Temperature: -10~70℃ / 14~158℉ Review: Defective Review: Trail test ## Features - PORTABLE, FOLDABLE & EASY TO CARRY: The MARBERO portable solar panel is compact and lightweight, with a folded size of 11.4" x 6.3" x 1.3" and weighing just 1.32 lbs—smaller than an iPad Pro. It easily fits into any camping backpack or hiking daypack, or can be carried by hand, making it perfect for outdoor activities like camping, traveling, or any occasion when you need it. Designed with 4 attachment holes, this foldable solar charger can be conveniently hung anywhere using the included carabiners. - HIGHER SOLAR CONVERSION: The 21W portable foldable solar panel is equipped with high-efficiency solar arrays, offering a conversion rate of up to 23%, turning sunlight into electrical energy for faster charging. The MARBERO 21W portable solar panel features a built-in smart chip that intelligently detects your device, maximizing charging speed while protecting it from overcharging and overloading. This ensures a more relaxed and worry-free outdoor experience without the concern of running out of power. The smart charging technology also provides optimal, 100% safe charging in direct sunlight. - POWER IN SUN OR SHADE: This 21W portable solar panel maintains high efficiency even on cloudy days. Under full sunlight and at an optimal tilt angle (35 to 65 degrees), it generates 18W–21W of power. On cloudy or overcast days, the foldable solar panel still provides 12W–16W, ensuring reliable power for your devices in any weather. - DURABLE & VERSATILE: The MARBERO portable foldable solar panel is crafted from high-quality, durable Oxford cloth and features IP65 waterproofing, dust resistance, and high-temperature durability. This portable solar charger is perfect for a wide range of outdoor activities, including camping, hiking, picnics, RV adventures, road trips, travel to remote areas, car trips, boating, power outages, and off-grid living. It’s an essential piece of emergency backup gear. - WIDE COMPATIBILITY: The USB A and DC ports are built into the power box of the MARBERO 21-watt portable foldable solar panel charger, making it perfect for charging your smartphones, tablets, laptops, power bank, speaker, portable power stations, and more. This portable solar panel, designed for camping and outdoor use, offers a reliable solar panel charging solution wherever you go, whether you're using it as a camping solar panel or for general on-the-go power needs. Our portable solar charger can't store electricity and can't charge laptops and power station. - 12 MONTHS WARRANTY: MARBERO solar panel will offer 12 months warranty and 7*24 customer service after your purchase. If you have any problem with the product, please feel free to contact us via desertcart message. - PACKAGE INCLUDES: 1*MARBERO Foldable Solar Panel 21W, 1*DC 5521 Cable, 3*Interchangeable DC Adapters, 1*User Manual, 2*Carabiners. NOTE: Any clouds, the angle toward sunlight, operating temperature and sunlight intensity will affect the real output, we don't suggest you use this foldable solar panel inside of a window or windscreen. ## Technical Specifications | Specification | Value | |---------------|-------| | Brand | MARBERO | | Material | Oxford cloth | | Product Dimensions | 27.9L x 15.2W x 3.3H Centimeters | | Item Weight | 1.3 Pounds | | Efficiency | 23% | | Included Components | 2 Carabiners, 3 Interchangeable DC Adapters, Bag, DC 5521 Cable, User Manual | | Maximum Voltage | 18 Volts (DC) | | Upper Temperature Rating | 70 Degrees Celsius | | Maximum Power | 21 Watts | | Special Feature | Portable, foldable, high solar conversion efficiency, works in sunny and cloudy conditions, durable, wide compatibility | | Output Voltage | 18 Volts | | Manufacturer | MARBERO | | Item model number | ET-21W | | ASIN | B0CFF315PD | ## Product Details - **Brand:** MARBERO - **Material:** Oxford cloth - **Product Dimensions:** 27.9L x 15.2W x 3.3H Centimeters - **Item Weight:** 1.3 Pounds - **Efficiency:** 23% ## Images ![MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy - Image 1](https://m.media-amazon.com/images/I/81VfqlB5DhL.jpg) ![MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy - Image 2](https://m.media-amazon.com/images/I/71HnNalsu7L.jpg) ![MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy - Image 3](https://m.media-amazon.com/images/I/81xrlK+2D-L.jpg) ![MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy - Image 4](https://m.media-amazon.com/images/I/81YFY6B+iUL.jpg) ![MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy - Image 5](https://m.media-amazon.com/images/I/91UEin-W9HL.jpg) ## Customer Reviews ### ⭐⭐⭐ Defective *by K***M on 6 January 2026* ### ⭐⭐⭐ Trail test *by J***R on 13 August 2024* ### ⭐⭐⭐⭐⭐ Great Purchase! *by J***C on 21 August 2025* ## Frequently Bought Together - MARBERO 21W Portable Solar Panel Foldable Solar Panel Charger IP65 Waterproof Solar Panels 23% High Efficiency Fast Charger USB Ports & DC 18V Output for Camping Outdoor Travel Emergency Cloudy - LifeStraw Personal Water Filter for Hiking, Camping, Travel, and Emergency Preparedness --- ## 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/625141005-marbero-21w-portable-solar-panel-foldable-solar-panel-charger-ip65](https://www.desertcart.co.uk/products/625141005-marbero-21w-portable-solar-panel-foldable-solar-panel-charger-ip65) --- *Product available on Desertcart United Kingdom* *Store origin: GB* *Last updated: 2026-05-30*