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The Best Solar Window Charger

Last updated on July 2, 2020

We looked at the top 10 Solar Window Chargers and dug through the reviews from 61 of the most popular review sites including Portable Beasts, Solar Generator Guide, Lifewire, Going Solar, Power Bank Expert, Circuits at Home and more. The result is a ranking of the best Solar Window Chargers.

Best Solar Window Charger

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Our Picks For The Top Solar Window Chargers

Show Contents
Our Take
Experts Included
Pros
Cons
  The Best Overall

Anker 21W Portable Foldable Solar Window Charger, 4-Panel

Anker

21W Portable Solar Window Charger, 4-Panel

Overall Take

Intelligent High-Speed ChargingIf you're searching for a solar window charger with a high-speed charge, opt for this pick.

Experts Included
DWYM Electronics Experts plus BestReviews, Outdoor Gear Lab, Ecotality, Charger Harbor, Fstoppers, 9to5Mac and 6 more. Along with user reviews from Amazon.
Pros
" Lightweight and portable thanks to its folding storage case. Charges smartphones and small electronic devices well, users report."
Cons
"Must be in a source of light to charge."

GoerTek 25000mAh Battery Portable Panel Solar Window Charger

GoerTek

25000mAh Portable Solar Window Charger

Overall Take

Charges Three DevicesWith this option, you'll be able to charge three devices at once.

Experts Included
DWYM Electronics Experts plus Earth Techling, Power Bank Expert, Solar Hub Energy, The Tech Lounge, Byways, Portable Beasts and 1 more. Along with user reviews from Amazon.
Pros
" The device is rated at IPX6 waterproof, meaning it can handle heavy downpour like a champ and still keep going. Small indicator lights show your battery life as well as if your solar panel is charging the battery. At 1.2..."
Cons
"Kind of heavy at 1.2 pounds."
  The Best Value

Hiluckey 25000mAh Outdoor Portable Solar Window Charger, 4-Panel

Hiluckey

25000mAh Outdoor Solar Window Charger, 4-Panel

Overall Take

Dust, Shock and Water-ResistantThis charger is equipped with a flashlight function that has three different modes.

Experts Included
DWYM Electronics Experts plus Outdoor Gear Lab, Power Bank Expert, Renewable Resources Coalition, The Review Index, Ecotality, Top Ten Reviews and 5 more. Along with user reviews from Amazon.
Pros
" This compact model combines a traditional fold-out style panel with a battery pack; together, they make a neat little package that charges devices quickly and effectively. The Hiluckey Portable Power Bank contains a 25,000mAh battery pack and a 5W panel...."
Cons
"Long time to recharge. Does not feature any Fast-charging technology. Not easy to hold in one hand."

FEELLE 24000mAh Waterproof Portable Solar Window Charger, 3-Panel

FEELLE

24000mAh Waterproof Solar Charger, 3-Panel

Overall Take

Choice of ColorsThis waterproof solar charger comes in black, blue or orange.

Experts Included
DWYM Electronics Experts plus Renewable Resources Coalition, HQ Review, Mippin, Buy The 10, Android Central, Going Solar and 1 more. Along with user reviews from Amazon.
Pros
" Combines four efficient solar panels with an excellent battery to produce by far the best solar charging ability of any similar device and yield the most charges of an average device. It takes about 25-30 hours in ideal conditions to..."
Cons
"Although this power bank is advertised as a piece of quick charging equipment, it doesn’t work that way."
Don't just take for granted what one reviewer says. Along with our own experts, DWYM analyzes the top expert reviews of the leading products and generates a score you can actually trust.
17

Products Considered

We identified the majority of the solar window chargers available to purchase.
10

Products Analyzed

We then selected the leading and most popular products for our team to review.

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61

Expert Reviews Included

In addition to our expert reviews, we also incorporate feedback and analysis of some of the most respected sources including: Portable Beasts, Solar Generator Guide, Lifewire, Going Solar, Power Bank Expert.

16,944

User Opinions Analyzed

We also incorporate user reviews from the leading retailers including Amazon.

Our experts reviewed the top 10 Solar Window Chargers and also dug through the reviews from 61 of the most popular review sites including Portable Beasts, Solar Generator Guide, Lifewire, Going Solar, Power Bank Expert, Circuits at Home and more. The result is a ranking of the best of the best Solar Window Chargers.

DWYM is your trusted roduct review source. Our team reviews thousands of product reviews from the trusted top experts and combines them into one easy-to-understand score. Learn more.

Look for the DWYM seal for products that are the best in their category.

The Best Overall

Anker 21W Portable Foldable Solar Window Charger, 4-Panel

Our Expert Score
9.2
12 expert reviews
User Summarized Score
8.6
2,027 user reviews
Our Take

Not only does this charger fit in a backpack for hiking trips, but it's also made out of a weather-resistant canvas for camping weekends. Under direct sunlight, the solar window charger has a charging speed of up to 3 amps.

What other experts liked
Lightweight and portable thanks to its folding storage case. Charges smartphones and small electronic devices well, users report.
- BestReviews
At 21W, it is the most powerful of all the panels, so it makes sense that it delivers a consistent charge to two devices at once. In ten minutes, the 21W from Anker was able to charge a single battery...
- Outdoor Gear Lab
Incorporates the fast charging technology that allows it to deliver up to 2.4 amps per USB port under direct sunlight. Moreover, the simple design of the product makes it the ideal backpack solar charger. The compact size of 11.1 x...
- Ecotality
The eye-hole rings are made of stainless steel and the rest of the solar charger is made of rugged polyester. The USB Port Hub is covered by the Polyester as well. When you fold the charger it does a great...
- Charger Harbor
Made up of three polymer-faced solar panels sewn into a polyester canvas material with a fourth section designed as a Velcro pocket, the entire device folds up to be about an inch thick. This makes it perfect for stashing in...
- Fstoppers
Four metal-reinforced holes in each charger’s corners let you attach carabiner hooks to mount the opened panel, most likely on the outside of a large camping/hiking backpack; Anker lets you supply them yourself if you need them, packing in a...
- 9to5Mac
The Anker is equipped with technology to identify the most effective charging conditions for devices plugged in, to offer the quickest charge without wasted energy. 1W panel set can accommodate larger or more power-hungry handheld devices, able to charge a...
- Slant
Does it all. It is well made, light, and compact. It can also carry its weight as a charging powerhouse. It’s more efficient when charging one or more devices, and can recover its charge even after being shaded for a...
- Solar Panel America
Hook this solar charger up to your backpack on your next hike and charge your phone or battery pack as you walk. The panels unfold to span about 18 inches, which is lots of surface area to capture sunshine. It...
- Good Housekeeping
Our top pick for the best solar charger since it offers an amazing combination of price, portability, and charging speed. Its performance leaves most of the comparable competition behind and it delivers where it counts: reliable power output.
- Outside Pursuits
Anker's solar phone charger makes it to our top three, thanks to some great reviews. Anker uses three 15W highly efficient (21.5% - 23.5%) SunPower solar panels. Weighing just 14.7oz, this solar charger is the most lightweight and compact variation...
- Solar Reviews
One of my favorite technological lifesavers. The power port is like a power bank, only this time it’s powered up by the sun, not from the electricity flowing from your wall outlet. This makes it a very versatile product. Not...
- Not Sealed
What other experts didn't like
Charges too slowly for some users, even in direct sunlight. Storage pocket in charger case can hold heat from charging devices stored there.
- BestReviews
Must be in a source of light to charge.
- Charger Harbor
Velcro pouch doesnt do much. It could come with a couple mini carabiners. Four panels might have made the amperage closer to stated specs. Removable USB hub would make it thinner for packing.
- Fstoppers
The pockets are unfortunately only large enough for an iPhone (or similarly-sized battery pack) at best, not an iPad. My personal impression is that both companies are overly optimistic about their chargers’ ability to perform in partial sunlight.
- 9to5Mac
This set of panels does not include any power storage options. This set of panels don't come with a battery, so charging will be impossible in poor weather conditions and night time. The user can overcome this by providing their...
- Slant
Pocket too small to hold extra cords and accessories. Must be in a source of light to charge.
- Solar Panel America
The storage compartment design isn’t quite secure. Velcro is used rather than a zipper. Isn’t fully waterproof only water resistant. Not compatible with the iPod Nano, iPod Classic, iPod Shuffle, HP TouchPad, and some Asus tablets. Due to higher charging...
- Not Sealed

The Best Bang For Your Buck

Hiluckey 25000mAh Outdoor Portable Solar Window Charger, 4-Panel

Our Expert Score
8.0
11 expert reviews
User Summarized Score
8.8
796 user reviews
Our Take

Whether you plan on spending the weekend camping or you attend a lot of outdoor sporting events, this option will keep your devices charged. It's made to resist dust and is also waterproof. When using this solar window charger, you'll get up to nine days of usage per charge.

What other experts liked
This compact model combines a traditional fold-out style panel with a battery pack; together, they make a neat little package that charges devices quickly and effectively. The Hiluckey Portable Power Bank contains a 25,000mAh battery pack and a 5W panel. Now, it takes a long time to get the fairly...
- Outdoor Gear Lab
Hiluckey has equipped this solar charger with a colossal capacity of 25000mAh, which is very impressive as it is one of the biggest on the market for a power bank of its type. Its true capacity, however, is a little above 17000mAh, still big enough to recharge an iPhone X...
- Power Bank Expert
It is also completely waterproof, with a rating of IPX7, meaning that it is submersible up to 3 feet. This is a similar feature to the other devices. But it is something that is indispensable for a device that you will use repeatedly outside. It also includes covers for the...
- Renewable Resources Coalition
The Hiluckey portable solar charger and 24000mAh power bank offers an efficient solution of the size of a smartphone that can easily fit into your pocket. When unfolding the product, you will have three solar panels available to charge your power bank much faster than other models. The solar power...
- Ecotality
With two solar panels and a 10,000 mAh capacity battery, the Hiluckey solar power bank is a great value. It has a 10,000 mAh battery, two solar panels and plenty of features that make it the perfect companion for your next camping trip.
- Top Ten Reviews
Includes four integrated solar panels that fold out – that’s about 4x the power. The 25000mAh battery is about as big as solar power packs get and can charge an iPhone X about 9 times before it’ll need recharging. You can charge your devices with the two USB outputs, which...
- Earth Techling
Offers an efficient and portable way how to charge electronic devices. The power bank comes with a 25000mAh high capacity battery that can be used to charge your phone eight to 10 times. It is likewise equipped with a dual USB; thus you can charge 2 devices simultaneously. Different from...
- Buy The 10
For different outdoor activities and emergencies, the Hiluckey power bank works seamlessly. Compared to standard power banks, this solar charger is capable to charge your phone for 8 to 10 times.
- The Genius Review
When the power bank is full, you can charge a cellphone 8 to 10 times on one charge or a tablet up to four times, meaning you can use this for around nine days per charge, making it an excellent option if you spend a lot of times out on...
- Circuits at Home
This fully featured and sizeable build battery pack has a massive 24000 mah charge and has 3 small solar panels on the back. This device charges extremely quickly and should definitely be considered when utility scale solar energy is required. It also has a total of 9 bright LED lights...
- Going Solar
What other experts didn't like
The only drawback to the panel is on the LED indicator lights; we noticed that three out of the five lights were very faint, making it hard to tell when the battery was full.
- Outdoor Gear Lab
Long time to recharge. Does not feature any Fast-charging technology. Not easy to hold in one hand.
- Power Bank Expert
Overall, reviewers were pleased with the performance and convenience of the device, although a few wished for some more color options. The critical reviews all noted that the charger worked well enough, they just were hoping for something faster or more powerful.
- Renewable Resources Coalition
The power button on the back is difficult to press.
- Top Ten Reviews
There are a couple of downsides to this product. First, at 1.2 pounds it’s about twice as heavy as the BESWILL 8000mAh Solar Charger above. Second, it’s also about twice as expensive as other power banks on our list. Of course, you’re also getting about 2.5x the power and 4x...
- Earth Techling

Our Solar Window Charger Findings

Anker 21W Portable Foldable Solar Window Charger, 4-Panel

What We Liked: Not only does this charger fit in a backpack for hiking trips, but it’s also made out of a weather-resistant canvas for camping weekends. Under direct sunlight, the solar window charger has a charging speed of up to 3 amps.

GoerTek 25000mAh Battery Portable Panel Solar Window Charger

What We Liked: Made using environmentally friendly material, this charger is an excellent choice for families. It’s able to charge three devices and has a built-in li-polymer battery. It also doubles as a light source when camping or traveling at night.

Hiluckey 25000mAh Outdoor Portable Solar Window Charger, 4-Panel

What We Liked: Whether you plan on spending the weekend camping or you attend a lot of outdoor sporting events, this option will keep your devices charged. It’s made to resist dust and is also waterproof. When using this solar window charger, you’ll get up to nine days of usage per charge.

FEELLE 24000mAh Waterproof Portable Solar Window Charger, 3-Panel

What We Liked: Rain, snow and frost will not affect this charger’s ability to charge your devices. This handy window solar charger is lightweight and easy to take with you wherever you go. It can charge two devices at once and also has a flashlight with a strobe, SOS and steady light stream.

Foxelli 10W Dual USB Portable Foldable Panel Solar Window Charger, 3-Panel

What We Liked: This charger is able to charge two devices at once. It’s lightweight and portable, which makes it perfect for road trips and camping outings. In fact, it’s even weatherproof, so you don’t have to worry about the unit being damaged from the wind or rain.

Our Solar Window Charger Buying Guide

Did you know that Albert Einstein published a paper in 1905 that helped spread awareness about the power of solar energy? Today, the benefits of switching to solar power are well known. In addition to using solar energy at home via solar panels on the roof, people can purchase portable solar window chargers to take on the go.

As you browse the available models, you want to take into consideration the number of people you have in your family. Many solar window chargers are only designed to charge one or two devices at a time. If you opt for a model like the GoerTek 25000mAh Portable Solar Window Charger, you’ll be able to charge three devices simultaneously. That’s a better choice for larger families. Of course, families can also purchase more than one solar charger if need be.

If you plan on using the solar window charger for an outdoor trip, you need to choose a model that is weather-resistant. The Hiluckey 25000mAh Outdoor Solar Window Charger, 4-Panel is not only waterproof but also dust and shockproof. It folds up and has a durable outer cover that protects the solar panels from becoming damaged when dropped.

Another important feature to look for when shopping for a solar window charger is how quickly the device charges. For example, the Anker 21W Portable Solar Window Charger, 4-Panel has the technology to charge at a speed of up to 2.4 amps when plugged into a port or 3 amps when placed in the path of direct sunlight. Some models also have a built-in eco-friendly li-polymer battery.

Review how easy the solar window charger is to transport. Ideally, you want a model that is lightweight and that can fit in a backpack or carry-on bag. Then check how the unit is designed to be used. Some models have suction cups so you can adhere them to a window, while others have stainless-steel eyeholes on each corner for hanging on the back of your pack.

Check to see if the solar window charger has any special features that put it above another model. The FEELLE 24000mAh Waterproof Solar Charger, 3-Panel is an excellent example of this, as it is outfitted with a flashlight function that has three modes. Users can set it on the steady mode for extra sight in the dark, strobe mode for adding to the party atmosphere or SOS mode when an emergency arises.

DWYM Fun Fact

Humans have been using sunlight as a source of energy for a long long time. We know that during the seventh century B.C., people used magnifying glasses to direct the sun’s rays and make it hot enough in one spot to start a fire. Later, mirrors were used in the same way as the magnifying glasses.

Edmond Becquerel was the first scientist to discover that light increased the amount of electricity in cells that had gold or platinum electrodes and that were submerged in a conducting solution. This discovery in 1839 paved the way for the solar panels we use today.

The first solar cell that resembles modern-day cells was constructed by Charles Fritz in 1883. His cell was made using selenium and wasn’t very strong, but others were able to improve upon his design over time. Aleksandr Stoletov is the first holder of a patent for a solar cell, which he obtained in 1888. It wasn’t long after this patent that solar power was commercialized.

In the 1950s and 60s, solar panels were used in a variety of spacecraft. President Jimmy Carter has solar panels installed on the roof of the White House in the 1970s. Today, solar panels are more affordable, making it possible for more homes across the globe to have them.

The Solar Window Charger Tips and Advice

  • Keep in mind that you must have a source of light available in order to charge the solar window charger.
  • To keep your solar window charger powered, hang it from the outside of your backpack so that it can receive sunlight while you hike. If you’re camping, find a location that receives direct sunlight and lay the charger out. Should you be traveling in a car or sitting at home, you can place the solar charger in a window that’s facing the sun.
  • Solar windows chargers also work great when traveling via plane, train or bus. Outlets are not readily available on these modes of transportation, which makes the solar chargers a great solution to keeping your phones and tablets charged until you reach your intended destination.
  • When you return from hiking or camping in the woods, you’ll most likely need to clean your solar window chargers before putting them away. All you need is a little dish soap and water. Moisten a lint-free cloth with the soapy water and wipe down the front and back of the charger. Repeat with a clean cloth that has been moistened with water only to rinse away any soap. Dry with a lint-free towel afterward. It’s important that you never use a scouring pad, wool scrubber or an abrasive cleaner on the solar window chargers. These will scratch the surface of the chargers and render them less effective.
  • The price for a solar window charger varies based on construction material and special features. The FEELLE 24000mAh Waterproof Solar Charger, 3-Panel is among the most affordable, while the GoerTek 25000mAh Portable Solar Window Charger and the Hiluckey 25000mAh Outdoor Solar Window Charger, 4-Panel are both moderately priced. You’ll pay the most for the Anker 21W Portable Solar Window Charger, 4-Panel, which is quick to charge.

About The Author

Alicia Bodine
Alicia Bodine 

Alicia Bodine is a New Jersey-based writer who loves researching the latest in electronics to keep up with her teenage daughters. With more than 15 years of experience, her work has appeared on leading tech publications.