---
product_id: 666662251
title: "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: "1100 Lei"
currency: RON
in_stock: true
url: https://www.desertcart.ro/products/666662251-21w-portable-solar-panel-foldable-solar-panel-charger-ip65-waterproof
store_origin: RO
region: Romania
---

# 1.32 lbs ultra-portable foldable design 21W max power output 23% solar conversion efficiency 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:** 1100 Lei
**Availability:** ✅ In Stock

## Summary

> ☀️ Charge your adventure, never miss a moment!

## Quick Answers

- **What is this?** 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?** 1100 Lei with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ro](https://www.desertcart.ro/products/666662251-21w-portable-solar-panel-foldable-solar-panel-charger-ip65-waterproof)

## 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

- • **Power Up Anywhere:** Compact foldable design fits effortlessly in your backpack for on-the-go energy.
- • **Sunshine to Juice:** High-efficiency 23% monocrystalline panels convert sunlight fast—even on cloudy days.
- • **Weatherproof Warrior:** IP65 waterproof and durable Oxford cloth withstands dust, heat, and rain for rugged adventures.
- • **Smart & Safe Charging:** Built-in smart chip optimizes charging speed while protecting your devices from overload.
- • **Universal Outdoor Compatibility:** Dual USB & DC ports power smartphones, tablets, and more—your essential travel companion.

## Overview

The MARBERO 21W Portable Solar Panel is a lightweight, foldable charger featuring 23% high-efficiency monocrystalline solar cells. Designed for outdoor enthusiasts, it delivers up to 21 watts of power with smart charging technology and IP65 waterproof durability. Equipped with USB and DC outputs, it ensures reliable device charging in all weather conditions, making it the perfect 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℉

## 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 |
|---------------|-------|
| Manufacturer | MARBERO |
| Part Number | ET-21W |
| Product Dimensions | 27.94 x 15.24 x 3.3 cm; 589.67 g |
| Item model number | ET-21W |
| Size | 21W 11 x 6 x 1.3 |
| Style | Modern |
| Material | Oxford cloth |
| Shape | Rectangle |
| Voltage | 18 Volts (DC) |
| Maximum power | 21 Watts |
| Folded knife size | 11*6 INCHES |
| Usage | Outdoor |
| Included Components | 2 Carabiners, 3 Interchangeable DC Adapters, Bag, DC 5521 Cable, User Manual |
| Batteries included? | No |
| Batteries Required? | No |
| Item Weight | 590 g |

## Product Details

- **Brand:** MARBERO
- **Material:** Oxford cloth
- **Product dimensions:** 27.9L x 15.2W x 3.3H centimetres
- **Item weight:** 1.3 Pounds
- **Efficiency:** 24%

## Images

![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)

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*Product available on Desertcart Romania*
*Store origin: RO*
*Last updated: 2026-01-22*