How many amps is everyone getting? i'm getting 1.6a via usb on the 40w solar version. how can i hit 2.1a?

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.

Does solar panel have reverse voltage prevention capability to prevent draining the battery of the item being charged?

It seemed to drain my phone. 2 percent battery loss in a second all at once.

Can 3 of these FlexSolar 40W solar chargers be tethered for even more power wattage?

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.

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?

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.

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

FlexSolar 40W Foldable Solar Panel Charger, USB-C USB-A & DC Outputs

FlexSolar 40W Foldable Solar Panel Charger, USB-C USB-A & DC Outputs

Product ID: 399175217

Details

Brand
FlexSolar
Efficiency
High
Included Components
2* Carabiners
Material
ETFE
Product Dimensions
48.8"L x 11"W

⚡40W max power output

💧IP67 waterproof & dustproof durability

🔋Dual fast-charging USB ports (18W each)

33.60 OMR

Duties & taxes included

In stock

Sold byAmazon OMANDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to OMAN.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Description

☀️ Charge smarter, roam freer with FlexSolar 40W!

SMART SAFE CHARGING - Integrated IC chip optimizes power delivery and protects your devices from overcurrent, overheating, and short circuits.
FAST CHARGE YOUR DEVICES - QC3.0 USB-A & PD2.0 USB-C ports provide rapid 18W charging for phones, tablets, and power banks simultaneously.
POWER UP ANYWHERE ANYTIME - 40W foldable solar panel delivers reliable energy on the go, perfect for off-grid professionals and adventurers.
BUILT TO BRAVE THE ELEMENTS - IP67-rated weatherproof design with ETFE coating ensures durability against rain, dust, and abrasion for worry-free outdoor use.
COMPACT LIGHTWEIGHT FREEDOM - Weighing just 1.76 lbs and folding to a compact size, it fits effortlessly in your backpack or emergency kit—never miss a charge.

The FlexSolar 40W Foldable Solar Panel Charger is a high-efficiency, ultra-portable solar solution featuring dual fast-charging USB ports and a 19V DC output. Its rugged IP67-rated design and smart IC technology ensure safe, optimized charging for multiple devices during outdoor adventures or emergencies. Lightweight and compact, it’s engineered for professionals and millennials who demand reliable power anywhere under the sun.

Specifications

ASIN	B09H6GGK55
Amperage Capacity	2.1 A
Best Sellers Rank	#4,892 in Cell Phones & Accessories ( See Top 100 in Cell Phones & Accessories ) #5 in Cell Phone Solar Chargers
Brand Name	FlexSolar
Connector Type	USB Type A, USB Type C
Customer Reviews	4.4 4.4 out of 5 stars (1,299)
Efficiency	High Efficiency
Folded Size	8,14x11,1x1,73 pollici
Included Components	2* Carabiners, 40W solar chargers
Item Dimensions L x W x H	48.8"L x 11"W x 0.1"H
Item Highlight	Waterproof portable solar charger for camping, hiking, backpacking; works with phones, power banks and tablets
Item Type Name	Foldable Solar Panel
Manufacturer	FlexSolar
Manufacturer Part Number	FLC-E6-200400-
Material Type	ETFE
Maximum Power	40 watts
Maximum Voltage	20 volts_of_direct_current
Model Number	E40
Number of Items	1
Output Voltage	19 volts_of_direct_current
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
UPC	785249519352
Unit Count	1 Count

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Ali H.

Fast shipping and excellent packaging. The Leatherman tool feels very premium and sturdy.

1 day ago

View all Trustpilot reviews

Shop Global, Save with Desertcart

Value for Money

Competitive prices on a vast range of products

Shop Globally

Serving millions of shoppers across more than 100 countries

Enhanced Protection

Trusted payment options loved by worldwide shoppers

Customer Assurance

Trusted payment options loved by worldwide shoppers.

Desertcart App

Shop on the go, anytime, anywhere.

33.60 OMR

Duties & taxes included

In stock

Sold byAmazon OMANDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to OMAN.

Secure transaction

ProDesertcart PRO

Fast, free shipping, member pricing & priority support.

Join PRO →

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Suresh K.

Very impressed with the quality and fast delivery. Will shop here again.

4 days ago

Reema J.

Perfect platform for hard-to-find items. Delivery was prompt.

1 month ago

View all Trustpilot reviews