Why the 40 watt solar panel can not produce desired power when charging my batteries?

This is normal, the solar panel works fine if it could produce an output power. Actually 40W is the max power of the solar chips, and 40W is a tested result in a laboratory with very strong light. The small solar panels are affected by many factors

Is the solar charger panel compatible with all power stations?

The solar panel comes with 10 DC adapters and is compatible with most portable power stations/solar generators on the market. However, I would recommend checking the input voltage range of your device to ensure it matches the 18V output solar panel.

It is recommended to charge how many watts of portable power staion?

Because the DC output is 18V/2.27A, the higher the wattage of your solar generator, the longer the charging time will be. For example: 300W=300/(18*2.27)=7 hours approx.

Can it charge multiple devices at once?

Yes, the 40W solar panel can charge multiple devices simultaneously. It has 3 output ports - 1 DC output, 1 USB-C output, and 1 USB QC3.0 output - that allow charging of different devices like phones, laptops, power banks etc. at the same time.

What's in the package?

40W Foldable Solar Panel x 1, 10-in-1 Connector x 1, DC-to-DC Cable x 1, User Manual x 1

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Duty & taxes paid at delivery

Help Track order

Account Cart

40W Foldable Solar Panel for Portable Power Station | Portable Solar Panel Charger for iPhone, iPad, Laptop, Camping Solar Panels for Camping Outdoor Van RV Trip

40W Foldable Solar Panel for Portable Power Station | Portable Solar Panel Charger for iPhone, iPad, Laptop, Camping Solar Panels for Camping Outdoor Van RV Trip

Product ID: 312363607

Details

Brand
SinKeu
Efficiency
High
Item Weight
3.3 pounds
Material
Silicon
Product Dimensions
13.78"L x x

⚡22% high conversion efficiency

📏Compact foldable size 13.3x11x2 in

🔋40W max power output

$120.48

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered 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 British Virgin Islands.

Secure transaction

Description

☀️ Power your freedom — stay charged, stay unstoppable!

SMART SECURE - TIR-C tech intelligently optimizes charging speed and protects your devices from overcharging and overload risks.
POWER UP ANYWHERE - 40W output with 3 versatile ports (DC, USB-C, QC3.0) to charge all your essential devices on the go.
SUNLIGHT TO SPEED - High 22% conversion efficiency means faster, more reliable charging even in less-than-perfect light conditions.
BUILT FOR THE ELEMENTS - Water-resistant monocrystalline panels ensure durability and performance rain or shine, so you never miss a charge.
PACK LIGHT CHARGE HEAVY - Weighing just 3.3 lbs and folding down to a compact size, it’s the ultimate portable power solution for busy adventurers.

The SinKeu 40W Foldable Solar Panel Charger is a lightweight, compact, and water-resistant monocrystalline solar panel designed for outdoor professionals and adventurers. Featuring 3 output ports including USB-C and QC3.0, it delivers efficient 22% solar conversion to charge phones, laptops, and portable power stations reliably. Its foldable design and smart TIR-C technology make it a versatile, secure, and essential power companion for camping, hiking, and remote work.

Specifications

ASIN	B08S7B46CB
Amperage Capacity	2.27 A
Best Sellers Rank	#58,267 in Patio, Lawn & Garden ( See Top 100 in Patio, Lawn & Garden ) #274 in Solar Panels
Brand Name	SinKeu
Connector Type	USB
Customer Reviews	4.5 4.5 out of 5 stars (857)
Efficiency	High Efficiency
Folded Size	13.3112in
Included Components	40W Foldable Solar Panel x 1, 10-in-1 Connector x 1, DC-to-DC Cable x 1, User Manual x 1, Package Box x 1
Item Dimensions L x W x H	13.78"L x 9.45"W x 1.97"H
Item Type Name	foldable solar panel
Item Weight	3.3 pounds
Manufacturer	SinKeu
Manufacturer Part Number	40W
Material Type	Monocrystalline Silicon
Maximum Power	40 watts
Maximum Voltage	18 volts
Model Number	S40
Output Voltage	5 volts
Special Features	Water Resistant, Waterproof
UPC	616985224616
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

Khalid Z.

Great experience from order to delivery. Highly recommended!

1 week ago

Yusuf A.

Fantastic experience overall. Will recommend to friends and family.

1 month 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.

$120.48

Duties & taxes included

In stock

Sold byAmazon British Virgin IslandsDelivered 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 British Virgin Islands.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Fatima A.

Best international shipping I've ever tried. Worth every penny!

3 days ago

Farhan Q.

The delivery time was excellent, and the packaging was secure.

2 months ago

View all Trustpilot reviews