---
product_id: 399175217
title: "40W Foldable Solar Panel Charger with USB-C and USB-A Outputs for Phones, Power Banks, Tablets - Waterproof for Camping, Hiking, Backpacking"
brand: "flexsolar"
price: "€ 119.46"
currency: EUR
in_stock: true
reviews_count: 11
category: "Flex Solar"
url: https://www.desertcart.fr/products/399175217-40w-foldable-solar-panel-charger-with-usb-c-and-usb
store_origin: FR
region: France
---

# 40W peak power output IP67 waterproof & dustproof durability Dual fast-charge USB-C & USB-A ports (18W each) 40W Foldable Solar Panel Charger with USB-C and USB-A Outputs for Phones, Power Banks, Tablets - Waterproof for Camping, Hiking, Backpacking

**Brand:** flexsolar
**Price:** € 119.46
**Availability:** ✅ In Stock

## Summary

> ☀️ Charge Boldly, Adventure Freely — Power that Keeps Up with Your Hustle

## Quick Answers

- **What is this?** 40W Foldable Solar Panel Charger with USB-C and USB-A Outputs for Phones, Power Banks, Tablets - Waterproof for Camping, Hiking, Backpacking by flexsolar
- **How much does it cost?** € 119.46 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.fr](https://www.desertcart.fr/products/399175217-40w-foldable-solar-panel-charger-with-usb-c-and-usb)

## Best For

- flexsolar enthusiasts

## Why This Product

- Trusted flexsolar brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Smart IC Chip Safety:** Intelligent device detection with overcurrent, overheating, and short-circuit protection keeps your gear safe and charging efficiently.
- • **Maximize Solar Efficiency:** Industry-leading 24% monocrystalline conversion rate powers your adventures even in limited sunlight—don’t get left in the dark.
- • **Power Up Anywhere, Anytime:** 40W ultra-lightweight foldable design fits effortlessly in your backpack for on-the-go energy freedom.
- • **Built to Brave the Elements:** IP67-rated waterproof and dustproof with ETFE coating ensures reliable performance in rugged outdoor conditions.
- • **Fast-Charge Tech for All Devices:** QC3.0 USB-A & PD2.0 USB-C ports deliver rapid, simultaneous charging for phones, tablets, and power banks.

## Overview

The FlexSolar 40W Foldable Solar Panel Charger is a compact, high-efficiency solar solution designed for professional millennials who demand reliable, fast charging on the move. Featuring dual QC3.0 USB-A and PD2.0 USB-C ports, a 19V DC output, and smart IC chip technology, it safely powers multiple devices simultaneously. Its rugged IP67 waterproof and dustproof ETFE-coated monocrystalline panels deliver a 24% conversion rate, ensuring maximum energy capture even in challenging outdoor environments. Lightweight and foldable, it’s the ultimate companion for camping, hiking, and emergency preparedness, enabling you to stay connected and powered without compromise.

## Description

desertcart.com: FlexSolar 40W Foldable Solar Panel Charger with USB-C and USB-A Outputs for Phones, Power Banks, Tablets - Waterproof for Camping, Hiking, Backpacking : Patio, Lawn & Garden

Review: Power Hungry? FlexSolar 40W Delivers (But Pair It Right!) - I've tested several portable solar panels in rugged conditions, and the FlexSolar 40W is a game-changer, but only when paired with the right battery. Let's break it down: Renogy E.Flex 10W: Ultralight (11.5 oz), but underwhelming: 0.696 watts/oz. Struggled to charge a 5000mAh battery in Yellowstone, even with optimal sun. Frustrating for demanding use. BigBlue 3: Moderate weight (24 oz), better output: 1.042 watts/oz. More reliable, even in cloudy conditions. Still struggled with heavy iPhone recording use. I feel the panel could be lighter with fabric trim reductions. FlexSolar 40W: Heavier (28.16 oz), but powerful: 1.243 watts/oz. The difference maker, but only when paired with a supporting battery pack. Key Insight: Solar panel wattage per ounce is important when you have to carry it on your back or in your boat all day, but compatible battery bank management is paramount. I have found optimal use occurs with a battery that allows for higher throughput charging. An unnamed Battery bank, that allows for 12V @ 1.5A input, allows for very quick recharge times. Avoid Anker battery packs that lack high-throughput charging. Best Battery Pack for Solar: https://www.desertcart.com/dp/B0CJC57PPC?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4&th=1 Real-World Performance: With the correct battery, the FlexSolar 40W effortlessly powered a GoPro, multiple batteries, iPhone, iWatch, GPS/satcomm, speaker, headlamp, and more. Even in three days of limited sun, it maintained essential device power. In ideal conditions charging speeds are very impressive. Verdict: For serious outdoor users, the FlexSolar 40W delivers exceptional power and reliability. Yes, it's heavier, but the performance is worth it. Make sure to pair this panel with a battery that can take full advantage of the power output. Finally, use a HIGH QUALITY charging cable on USB-C. No more than 36" long. Look for something like the Anker USB-A > USB-C Powerline II, which uses a lower gauge wire. If you use a cheaper lighter weight charging cable, you are choking the solar panels ability to push power to the battery BMS. Links: *BEST* Unnamed Battery: [https://www.desertcart.com/dp/B0CJC57PPC?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4&th=1] *WORST* Anker Battery: [https://www.desertcart.com/dp/B07S829LBX?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_10&th=1] *BEST* Flex solar panel: [https://www.desertcart.com/dp/B09H6GGK55?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_2] *MID* Big Blue 3 panel: [https://www.desertcart.com/dp/B01EXWCPLC?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4] *WORST* Renogy E.Flex panel: [https://www.desertcart.com/dp/B01K63CO0O?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_6] *BEST* Charging Cable: [https://www.desertcart.com/Anker-Powerline-Certified-Samsung-MacBook/dp/B07213D35X?ref_=ast_sto_dp]
Review: Durability - I purchased for an up coming backpacking trip. I use the solar panel in conjunction with a battery bank to provide power to a host of electronics. It preformed flawless and even provided power on less than ideal conditions. It proved exceptional durable has it spend a days bouncing on my pack charging the battery bank I walked. The solar allow me to reduce my battery bank capacity. It was a great addition to my kit and I would recommend it. It is of great value to me to be able to provide continual power. The only improvement would be to put small silcone covers over the output ports to protect from precipitation. I always made sure to hang the panel with the ports in a downward orientation to protect from precipitation and I had no problems. Super easy to use.

## Features

- 【40W Dual Fast-Charging Solar Charger】Equipped with QC3.0 USB-A & PD2.0 USB-C ports (18W max each) for simultaneous fast charging of phones (Android/iOS), tablets, power banks, etc. The 19V DC port (40W max) directly powers small stations. Smart load distribution design recommends prioritizing single-port use for peak efficiency. (Note: Instant energy conversion device with no energy storage)
- 【SMART IC CHIP TECHNOLOGY & SAFETY FEATURE】Integrated IC automatically detects the connected devices and provides the optimized charging, and an included LED light shows the charging status.FlexSolar ensure 100% safe charging with overcurrent, overheating and short-circuit protection.
- 【40W Ultra-Lightweight Foldable Solar Panel】 Ideal for mobile camps and off-grid adventures, this compact 40W solar panel delivers high-efficiency power for extended journeys without compromising portability. With ultra-compact folded dimensions of 8.0 x 11.1 x 1.8 and a featherlight 1.76lbs (0.8kg) design, it effortlessly fits into backpacks or emergency kits, ensuring reliable energy access anywhere. A must-have for outdoor enthusiasts and an essential addition to emergency preparedness gear.
- 【24% High-Efficiency Conversion & IP67 Weatherproof Durability】 Advanced monocrystalline cells deliver an industry-leading 24% solar conversion rate, maximizing energy output even in limited sunlight. Built to endure rugged environments, the panel features IP67-rated dustproof/waterproof construction and ETFE laminate coating, offering superior resistance to rain, dust, and abrasion compared to standard PET panels. While the junction box is not fully waterproof (store indoors during heavy rain), its robust design ensures long-term reliability in harsh conditions.
- 【PACKAGE & SUPPORT】Your purchase includes:1×40W Solar Panel,2 ×Carabiners and 1×User Manual.Important Notes: For optimal charging efficiency, position the solar panel at a 45° angle facing direct sunlight. Shade or partial coverage may reduce performance by up to 70%. While this solar panel is IP67 waterproof, avoid submerging it in water for over 30 minutes.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| AC Adapter Current | 2.1 Amps |
| ASIN | B09H6GGK55 |
| Batteries Included? | No |
| Batteries Required? | No |
| Battery Cell Type | Polymer |
| Best Sellers Rank | #22,136 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #100 in Solar Panels |
| Brand | FlexSolar |
| Certification | FCC |
| Color | Black |
| Date First Available | October 21, 2021 |
| Efficiency | High Efficiency |
| Folded Knife Size | 8,14x11,1x1,73 pollici |
| Included Components | 2* Carabiners, 40W solar chargers |
| Item Package Quantity | 1 |
| Item Weight | 2.27 pounds |
| Item model number | E40 |
| Manufacturer | FlexSolar |
| Material | ETFE |
| Maximum Power | 40 Watts |
| Maximum Voltage | 20 Volts (DC) |
| Mounting Type | Table Stand |
| Output Voltage | 19 Volts (DC) |
| Part Number | FLC-E6-200400- |
| Power Source | Solar Powered |
| Product Dimensions | 48.8"L x 11"W x 0.1"H |
| Size | 40 W |
| Special Feature | Foldable & Portable, High Energy Conversion, Lightweight Design, Quick Charge QC 3.0 USB-A ,USB-C PD2.0 and DC ports, Smart IC Technology |
| Special Features | Foldable & Portable, High Energy Conversion, Lightweight Design, Quick Charge QC 3.0 USB-A ,USB-C PD2.0 and DC ports, Smart IC Technology |
| Style | Traditional |
| UPC | 785249519352 |
| Wattage | 40 watts |

## Product Details

- **Brand:** FlexSolar
- **Efficiency:** High Efficiency
- **Included Components:** 2* Carabiners, 40W solar chargers
- **Material:** ETFE
- **Product Dimensions:** 48.8"L x 11"W x 0.1"H

## Images

![40W Foldable Solar Panel Charger with USB-C and USB-A Outputs for Phones, Power Banks, Tablets - Waterproof for Camping, Hiking, Backpacking - Image 1](https://m.media-amazon.com/images/I/41cY0bvydkL.jpg)

## Available Options

This product comes in different **Size** options.

## Questions & Answers

**Q: How many amps is everyone getting? i'm getting 1.6a via usb on the 40w solar version. how can i hit 2.1a?**
A: What most of the reviews say is that you'll rarely hit 2.1a and it's also inconsistent with clouds, etc. And every time you drop below 2.1a, your phone, tablet may stop charging which could require you to unplug/plug back in to restart charging. The best way to solve this is to use the solar panel to charge a battery bank which will take whatever it can get from the solar with little fuss on amperage. Then use the battery bank to charge your phone as it provides the consistent 2.1a your phone/tablet needs. Many battery banks will not simultaneously charge (solar/wall plug) and discharge (phone/tablet), but if needed find one that has "pass through" charging.

**Q: Does solar panel have reverse voltage prevention capability to prevent draining the battery of the item being charged?**
A: It seemed to drain my phone.   2 percent battery loss in a second all at once.

**Q: Can 3 of these FlexSolar 40W solar chargers be tethered for even more power wattage?**
A: If by tethered you mean daisy-chained, then the answer is no. This is not like the permanent or some of the bigger 100w solar panels designed to be daisy chained for higher wattage. 

That doesn't mean there isn't a way to use multiple units, but that really depends on what you are trying to power. And that is the biggest question, what are you trying to charge that takes or needs 120watts? You might be better off looking at a higher end panel set.

**Q: I am going camping in the desert for a week and am looking for a way to charge a mini air cooler.  Would I need a power bank also?**
A: FlexSolar 40 watts solar charger panel can only be used in the sunlight and No function of storing electricity. If you want to use the electricity in the night, you can buy a power bank.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Power Hungry? FlexSolar 40W Delivers (But Pair It Right!)
*by A***3 on March 11, 2025*

I've tested several portable solar panels in rugged conditions, and the FlexSolar 40W is a game-changer, but only when paired with the right battery. Let's break it down: Renogy E.Flex 10W: Ultralight (11.5 oz), but underwhelming: 0.696 watts/oz. Struggled to charge a 5000mAh battery in Yellowstone, even with optimal sun. Frustrating for demanding use. BigBlue 3: Moderate weight (24 oz), better output: 1.042 watts/oz. More reliable, even in cloudy conditions. Still struggled with heavy iPhone recording use. I feel the panel could be lighter with fabric trim reductions. FlexSolar 40W: Heavier (28.16 oz), but powerful: 1.243 watts/oz. The difference maker, but only when paired with a supporting battery pack. Key Insight: Solar panel wattage per ounce is important when you have to carry it on your back or in your boat all day, but compatible battery bank management is paramount. I have found optimal use occurs with a battery that allows for higher throughput charging. An unnamed Battery bank, that allows for 12V @ 1.5A input, allows for very quick recharge times. Avoid Anker battery packs that lack high-throughput charging. Best Battery Pack for Solar: https://www.amazon.com/dp/B0CJC57PPC?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4&th=1 Real-World Performance: With the correct battery, the FlexSolar 40W effortlessly powered a GoPro, multiple batteries, iPhone, iWatch, GPS/satcomm, speaker, headlamp, and more. Even in three days of limited sun, it maintained essential device power. In ideal conditions charging speeds are very impressive. Verdict: For serious outdoor users, the FlexSolar 40W delivers exceptional power and reliability. Yes, it's heavier, but the performance is worth it. Make sure to pair this panel with a battery that can take full advantage of the power output. Finally, use a HIGH QUALITY charging cable on USB-C. No more than 36" long. Look for something like the Anker USB-A > USB-C Powerline II, which uses a lower gauge wire. If you use a cheaper lighter weight charging cable, you are choking the solar panels ability to push power to the battery BMS. Links: *BEST* Unnamed Battery: [https://www.amazon.com/dp/B0CJC57PPC?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4&th=1] *WORST* Anker Battery: [https://www.amazon.com/dp/B07S829LBX?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_10&th=1] *BEST* Flex solar panel: [https://www.amazon.com/dp/B09H6GGK55?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_2] *MID* Big Blue 3 panel: [https://www.amazon.com/dp/B01EXWCPLC?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_4] *WORST* Renogy E.Flex panel: [https://www.amazon.com/dp/B01K63CO0O?ref_=ppx_hzsearch_conn_dt_b_fed_asin_title_6] *BEST* Charging Cable: [https://www.amazon.com/Anker-Powerline-Certified-Samsung-MacBook/dp/B07213D35X?ref_=ast_sto_dp]

### ⭐⭐⭐⭐⭐ Durability
*by N***C on December 26, 2025*

I purchased for an up coming backpacking trip. I use the solar panel in conjunction with a battery bank to provide power to a host of electronics. It preformed flawless and even provided power on less than ideal conditions. It proved exceptional durable has it spend a days bouncing on my pack charging the battery bank I walked. The solar allow me to reduce my battery bank capacity. It was a great addition to my kit and I would recommend it. It is of great value to me to be able to provide continual power. The only improvement would be to put small silcone covers over the output ports to protect from precipitation. I always made sure to hang the panel with the ports in a downward orientation to protect from precipitation and I had no problems. Super easy to use.

### ⭐⭐⭐⭐ Versatile
*by D***N on April 25, 2024*

Avid kayak camper. Got this solar panel to charge a power station but found that the station prefers a slow charge which kinda blows the solar idea. i got the power station to charge my phone and other electronics i use while camping. Ironically this solar panel charges my phone and those other electronics quicker than the power station including my bose flex Bluetooth speaker. It has 3 outputs, but the one i recommend is usb c. It spits out the most power from that connection so get yourself a 100w c to c cable. I got a 10' so i can have the panels in the sun while the electronics stay in the shade. Im also a tradesman and use my bose speaker everyday but the battery doesn't go all day, but it does with this solar panel connected to it. I gave it 4 stars because it doesn't put out nowhere near 40 watts because my power station tells me the what its recieving, but it does effectively charge my devices provided the sun is out. It folds down very compact and very easy to carry. Im satisfied with my purchase, but would recommend to hold off until a sale or coupon or a bundle offer. If it was a true 40 watt, it would be worth the full price, but it's not so it's not.

## Frequently Bought Together

- FlexSolar 40W Foldable Solar Panel Charger with USB-C and USB-A Outputs for Phones, Power Banks, Tablets - Waterproof for Camping, Hiking, Backpacking
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*Product available on Desertcart France*
*Store origin: FR*
*Last updated: 2026-03-07*