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SunJack 25 Watt Foldable IP67 Waterproof ETFE Monocrystalline Solar Panel Charger with USB-C and USB-A for Cell Phones, Tablets and Portable for Backpacking, Camping, Hiking and More

4.6 4.6 out of 5 stars 145 ratings
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Amazon's Choice in Solar Panels by SunJack

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About this item

  • Rugged, Durable, Waterproof. Weatherproof ETFE exterior layer improves performance and durability, extends the panel’s lifespan, and requires less maintenance when compared to the PET exterior construction used by most portable solar chargers. The USB ports are waterproof rated IP67 – the printed circuit board (PCB) is coated with a waterproof seal and the junction box is silicone bonded to the panel. Designed for all weather conditions and environments - waterproof, shock-proof and drop-proof.
  • Portable folding solar panel. Compact panels fold down to the size of a tablet and easily fit into any backpack. Integrated magnetic closure system keeps the panels closed during storage, eliminating the need for bulky straps. The pocket provides storage space for most electronics and accessories, and the mesh design intuitively allows proper airflow to prevent devices from overheating while being charged. The elastic straps secure phones, power banks and more during storage and transportation.
  • Powerful and fast charging speeds. Monocrystalline panels with ETFE construction provide maximum efficiency and UV-ray permeability. Dual USB ports allow you to charge both USB-A and Type-C devices. The USB-A port (5V/3A) and USB-C port (5V/3A) each pump out up to 3 amps of power per USB port (25W total maximum output) to provide wall-outlet charging speeds. ETFE construction has a UV permeability of 95% compared to 80% from PET - makes the panel more efficient than other solar chargers.
  • Smart Technology. Built-in smart IC chip intelligently identifies your device and provides the quickest, yet safest, charging speed. Short circuit, over-load, over-heat, over-charge, over-voltage, over-current and current limiting protection. Automatic restore if shade occurs.
  • Multi-Use: Ideal for camping, backpacking, hiking, outdoor adventures and is essential in any disaster, emergency, and hurricane prep kit for survival. Never be caught without power. Great for any USB device including your iPhone, Samsung, Pixel, iPad, phones, powerbanks, tablets and more.
  • Designed in California, backed by a 12-month hassle free warranty from a local USA company with easy-to-reach customer service. If you have any questions or experience any issues, we are here to help.
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Additional Details

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Customer ratings by feature

Charging power
4.6 4.6
Durability
4.4 4.4
Value for money
4.3 4.3
Easy to use
4.2 4.2

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SunJack 25 Watt Foldable IP67 Waterproof ETFE Monocrystalline Solar Panel Charger with USB-C and USB-A for Cell Phones, Tablets and Portable for Backpacking, Camping, Hiking and More
SunJack 25 Watt Foldable IP67 Waterproof ETFE Monocrystalline Solar Panel Charger with USB-C and USB-A for Cell Phones, Tablets and Portable for Backpacking, Camping, Hiking and More
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Price$79.95-7% $83.99
Typical:$89.99
-9% $59.99
List:$65.59
$59.99-17% $49.96
Typical:$59.96
-6% $29.99
List:$31.99
Delivery
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Customer Ratings
Durability
4.4
4.2
4.2
4.5
4.1
Value for money
4.3
3.8
3.8
4.2
Easy to use
4.2
4.8
4.8
4.8
Light weight
4.0
4.0
4.5
4.1
Charging power
4.6
3.6
3.6
Sold By
OriginalSupply
FlexSolar
FlexSolar
Sun Panel
BigBlue-US
FlexSolar
connector type
USB Type A, USB Type C
DC5521, USB A (QC3.0)
USB
USB Type A, DC
USB
USB
number of usb ports
2
3
2
1
1
1
compatible devices
Smartphones, Tablets, Cameras, Smartwatches, Headphones
Smartphones, Headphones, Laptops, Tablets, Cameras,Smartwatches
Smartphones, Headphones, USB Fans, Smartwatches
Ipads, Smartphones
Smartwatches, Tablets
Smartphones, Headphones, Smartwatches, USB Fans
input voltage
5 volts
19 volts
12 volts
5.5 volts
connector gender
Male-to-Female
Male-to-Male
Male-to-Male
Male-to-Male
Male-to-Male
power source
Solar Powered
Solar Powered
Solar Powered
Solar Powered
Solar Powered
Solar Powered

Product Description

SunJack Backpacker Series Foldable Solar Panel Chargers

SunJack Backpacker Series Solar Panels Overview

The SunJack story started in sunny California in 2014. At the time, portable solar chargers were not very powerful, and the powerful ones were not portable. To combat this problem, SunJack was born. SunJack’s mission is simple: to deliver a durable and strong solar power charger in a compact size. Designed and engineered in the USA, SunJack solar panels have since proven to be a reliable tool for many people and organizations around the world.

SunJack Panel Camping

SunJack Solar Panel Backpacking

sunjack

PRODUCT HIGHLIGHTS

  • Rugged and Durable - Fully laminated ETFE construction is weatherproof and built to last. Waterproof IP67 USB ports.
  • Powerful and Smart - Monocrystalline solar panels with smart IC chip technology
  • Foldable and Portable - Folding Solar Panels are compact and easily fit in a backpack
  • Wall Outlet Charging Speeds!

YOUR ULTIMATE POWER COMPANION

The perfect accessory for your active lifestyle. Charge your phones, tablets and all your USB devices during your outdoor adventures. Includes both USB-A and USB-C output ports and is compatible with a wide range of devices. Essential for any disaster, emergency, and hurricane prep kit for survival. With SunJack as your personal power companion, simply plug in and power up. Never be caught without power.

IN THE NEWS

SunJack has gained the attention of press and media worldwide for its blend of durability and powerful charging speeds. Beyond charging our first-world luxuries, SunJack also helps to improve lives world-wide through various non-profit organizations, supplying power to impoverished countries.

Uses of SunJack portable solar charger

Technical Specifications

Solar Capacity 25 Watts
Solar Cell Type Monocrystalline
Outer Construction Fully laminated ETFE
Dimensions (Closed) 7.8" x 11" x 1"
Dimensions (Open) 23.5" x 11" x 0.1"
Net Weight 1.7 lbs (0.77 kg) - Panel only
Output Port 1 USB-C (5V/3A)
Output Port 2 USB-A (5V/3A)
Rated Peak Power (Pmac |W) 25 Watts
Open Circuit Voltage (Voc |V) 7.9V
Short Circuit Current (Lsc |A) 3.2A
Max Power Voltage (Vmp |A) 6.6V
Max Power Current (lmp |A) 3A
Operating Temperature (°F/°C) -4°F to 149°F (-20°C to 65°C)
Standard Test Conditions 1000W/m2, 25°C, AM1.5
SunJack 15 Watt Foldable Solar Panel SunJack 15 Watt Foldable Solar Panel with Powerbank SunJack 25 Watt Foldable Solar Panel SunJack 25 Watt Foldable Solar Panel with Powerbanks SunJack 60W solar panel SunJack 60W solar panel plus 100W powerbank
SunJack 15 Watt Foldable Solar Panel SunJack 15 Watt Foldable Solar Panel with 10000mAh Powerbank SunJack 25 Watt Foldable Solar Panel SunJack 25 Watt Foldable Solar Panel with (2x) 10000mAh Powerbank SunJack 60 Watt Foldable Solar Panel SunJack 60 Watt Foldable Solar Panel with 100W 25600mAh Powerbank
Customer Reviews
4.1 out of 5 stars
99
4.7 out of 5 stars
33
4.6 out of 5 stars
145
4.7 out of 5 stars
164
4.6 out of 5 stars
25
4.2 out of 5 stars
8
Watts 15 Watts 15 Watts 25 Watts 25 Watts 60 Watts 60 Watts
ETFE Construction
Monocrystalline Panels
USB-A
USB-C
DC 5521 (22V)
Powerbank(s) Included
Carabiner(s) Included

From the brand

Product information

Technical Details

Additional Information

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.
Product Warranty: For warranty information about this product, please click here

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SunJack 25 Watt Foldable IP67 Waterproof ETFE Monocrystalline Solar Panel Charger with USB-C and USB-A for Cell Phones, Tablets and Portable for Backpacking, Camping, Hiking and More


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Important information

Wattage

25 watts

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Customer reviews

4.6 out of 5 stars
4.6 out of 5
145 global ratings

Customers say

Customers like the performance, quality, durability, portability and value of the charging adapter. They mention that it works great, it's dependable and will last for many years. They are also happy with ease of use, and value. That said, opinions are mixed on charging.

AI-generated from the text of customer reviews

14 customers mention12 positive2 negative

Customers like the performance of the charging adapter. For example, they say it works great, it works well in low light, and it illuminates at night while avoiding snakes.

"It works as expected and great for my needs. Can't beat it for the price." Read more

"...the ability to capture memories with my camera, and illumination at night while avoiding snakes...." Read more

"Works great! Easy to use, just place in the sun and start charging!" Read more

"Texture feels very high quality. Works well in low light.I wish it could do 2A if only one device was plugged in." Read more

11 customers mention11 positive0 negative

Customers are satisfied with the quality of the charging adapter. They mention that it is a great product, portable, and dependable. Some say that the construction is not the best, but it is still a useful piece of equipment. Overall, customers are happy with their purchase and recommend it to others.

"It works as expected and great for my needs. Can't beat it for the price." Read more

"...Excellent product!" Read more

"Flexible, small and useful" Read more

"This is a most handy piece of equipment...." Read more

9 customers mention9 positive0 negative

Customers are satisfied with the durability of the charging adapter. They mention that it charges quickly and will last for many years.

"...Definitely has some weight but also seems to be well built. When charging have to be mindful not to overheat the battery pack." Read more

"...Super sturdy and yes water proof.This is a survival essential!..." Read more

"...The construction is solid, rigid and durable. Built faith in the solar industry here compared to other gimmicky devices I've had in the past...." Read more

"I have no complaints being that it charges quickly and will last for many years!" Read more

7 customers mention7 positive0 negative

Customers appreciate the portability of the charging adapter. They mention that it is small, flexible, and useful.

"...Has lots of resistance to elements and portability. Definitely has some weight but also seems to be well built...." Read more

"...It's not too big to carry and looks kind of cool with the yellow color. I'm very happy with it." Read more

"Flexible, small and useful" Read more

"USB sun power at its best. Peppers delight. Very portable. I use it to charge up my Cells, lights batteries, and my ham radio equipment...." Read more

4 customers mention4 positive0 negative

Customers find the charging adapter easy to use. They mention it's set up for durability and that it' s easy to set up.

"Love the ease of use...charges pretty quickly, all in all, the best solar charger for it's price point..." Read more

"Works great! Easy to use, just place in the sun and start charging!" Read more

"Very easy to use, works great and will provide peace of mind in any power outage. I did not determine how long it would take to work in shade." Read more

"Love this panel. Easy to use, and set up for durability with its folding case." Read more

4 customers mention4 positive0 negative

Customers appreciate the value of the charging adapter. They say it's an excellent product at this price point.

"...ease of use...charges pretty quickly, all in all, the best solar charger for it's price point..." Read more

"...Will try to update as I put more of a load on it but it's absolutely worth the money. The construction is solid, rigid and durable...." Read more

"Excellent product at this price point..." Read more

"Very good value..." Read more

9 customers mention6 positive3 negative

Customers are mixed about the charging adapter. Some mention it charges quickly and will last for many years, while others say that it would not charge their Apple phone, but had no problem charging a power bank, a headlamp, and that it did not charge the power bank when they needed to use it.

"Love the ease of use...charges pretty quickly, all in all, the best solar charger for it's price point..." Read more

"The USB-C cable included seems non-standard or proprietary, it won't charge my devices if I try any other cable...." Read more

"...this for our Go Bag in case of an emergency and it’s definitely fast charging at 25watt. Super sturdy and yes water proof...." Read more

"I have no complaints being that it charges quickly and will last for many years!" Read more

Gloomy, cloudy, rainy day POWER!
5 Stars
Gloomy, cloudy, rainy day POWER!
Lightening struck near work causing a fire which shut down The City’s Power.Perfect day for a test.I’m running my phone & a small USB camp fan to stay cool . . . all on only 25W!Highly recommend!
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Top reviews from the United States

Reviewed in the United States on September 28, 2023
2 people found this helpful
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Reviewed in the United States on June 19, 2023
4 people found this helpful
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Reviewed in the United States on October 15, 2023
Reviewed in the United States on September 17, 2023
Reviewed in the United States on September 4, 2023
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Reviewed in the United States on July 28, 2016
83 people found this helpful
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Reviewed in the United States on July 22, 2023
8 people found this helpful
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Reviewed in the United States on October 3, 2022
8 people found this helpful
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Top reviews from other countries

CY
3.0 out of 5 stars Stopped working after few months. Delivered 12W on sunny days.
Reviewed in Singapore on February 21, 2021
Customer image
CY
3.0 out of 5 stars Stopped working after few months. Delivered 12W on sunny days.
Reviewed in Singapore on February 21, 2021
I live in Singapore. This solar charger performs well from 8am to 6pm. The photo shows a reading I’d typically get when it’s sunny, 4.95V and 1.97A. When it’s cloudy, I’d get about 0.5A.

This 25W solar charger has 2 USB A outputs. When 2 USB devices are connected to both ports, the highest total current I could get was 2.7A (~13W).

It’d be best to use a good usb charging cable. Also, the shorter the cable, the higher the current.

The built quality is great and it feels tough. There’s a magnet that keeps the panels folded together for easy packing.

The solar panel became faulty after a few months' daily use. 1 of 3 panels stopped working, reducing the total output. I've returned the panel.
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2 people found this helpful
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