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X-Dragon 20W Review

This low-priced, incredibly efficient solar panel converts the sun into electricity effectively
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x-dragon 20w portable solar charger review
The monocrystalline solar panes are the most durable and efficient solar panels.
Credit: Sam Schild
Price:  $65 List
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Manufacturer:   X-Dragon
By Sam Schild and James Lucas  ⋅  Oct 19, 2023
70
OVERALL
SCORE


RANKED
#3 of 12
  • Direct Solar Charging Speed - 35% 7.5
  • Indirect Solar Charging Speed - 35% 6.5
  • Portability - 15% 7.0
  • Functionality - 15% 7.0

Our Verdict

The X-Dragon 20W solar panel provides solid charging at a fast speed and costs less than most other panels. It has a high conversion rate, so it works well on sunny days, and it works reasonably well on cloudier days as well. The X-Dragon also produces enough amperage to charge just about any USB device, from laptops to cameras, cell phones, and portable GPS devices. It packs down to roughly the size of a notebook and unfolds its three panels to capture an impressive amount of sunlight. If you're looking for a backpacking solar panel for recharging your devices at base camp or simply a transportable solar charger to carry with you wherever your day takes you, this is a great option. It's portable enough to carry just about anywhere, durable enough to toss around, and affordable enough not to leave a dent in your wallet.
REASONS TO BUY
Good charging speed
Lots of places to clip carabiners
Great value
Lightweight
REASONS TO AVOID
Hard to reach pouch makes the panel lay crooked
Editor's Note: This article was updated on October 19, 2023, to include new information and comparisons from our latest round of testing.

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x-dragon 20w portable solar charger review
This Product
X-Dragon 20W
Awards Best Buy Award Editors' Choice Award  Top Pick Award  
Price $65 List
$56.99 at Amazon
$70 List$80 List
$79.95 at Amazon
$59.95 at REI
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$30 List
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Bottom Line This panel works well as a portable solar charger and costs less than the competitionFor an easy-to-use and efficient solar charger, this panel will keep your tech chargedThis portable solar charger has average charging speeds and is very durableThis panel is small and light enough that you'll always want to carry it with youThis battery bank holds 20,000 mAh of charge, but you'll have to wait weeks to charge it via solar
Rating Categories X-Dragon 20W BigBlue SolarPowa 28 SunJack 25W Goal Zero Nomad 5 Errbbic 20000mAh Wa...
Direct Solar Charging Speed (35%)
7.5
9.0
6.5
4.5
1
Indirect Solar Charging Speed (35%)
6.5
8.0
4.0
4.0
1
Portability (15%)
7.0
7.0
7.0
9.0
10.0
Functionality (15%)
7.0
9.0
7.0
6.0
4.0
Specs X-Dragon 20W BigBlue SolarPowa 28 SunJack 25W Goal Zero Nomad 5 Errbbic 20000mAh Wa...
Power Output (Watts) 20W 28 W 25 W 5 W <5 W
Energy Generated in 1 Hour Direct Sun 1043 mAh 1849 mAh 624 mAh 318 mAh 14 mAh
Energy Generated in 1 Hour Indirect Sun 535 mAh 919 mAh 105 mAh 65 mAh 0.001 mAh
# of USB A Outlets 2 3 1 1 2
# of USB C Outlets 0 0 1 0 0
Max USB Output Current (Amps per Port) 3 amp 2.4 amp 2 amp 1 amp 2.1 amp
Weight (Measured) 21.7 oz 20.9 oz 29.4 oz 12.35 oz 8.7 oz
Size Folded 12.1 x 7.2 x 0.51 in 11 x 6 x 1.5 in 12.6 x 7.8 x 0.8 in N/A N/A
Size Opened 23.3 x 12.1 x 0.12 in 31 x 11.5 x 0.2 in 24.6 x 7.8 x 0.8 in 9.5 x 7 x 0.8 in 5.5 x 3 x 0.75 in
Battery Included No No No No Yes
Battery Capacity (mAh) N/A N/A N/A N/A 20,000 mAh
Tablet Charging Yes Yes Yes No Yes
Laptop Charging No Yes No No No
Charge iPhone/Smartphone Yes Yes Yes Yes Yes
Panel Exterior Material PTFE Polyester Oxford fabric PET polymer fabric Hard plastic Plastic
Panel Type Monocrystalline Monocrystalline Monocrystalline Monocrystalline Monocrystalline
Battery Input (Volts / Amps) N/A N/A N/A N/A 5.1V/1.9A
USB Output Yes Yes Yes Yes Yes
Able to Daisy Chain No No No No No
12-Volt Connection No No No No No
DC Output No No No No No

Our Analysis and Test Results

The X-Dragon 20W is a 20-watt mono-crystalline folding solar panel weighing in at 21.7 ounces. Folded up, the X-Dragon is 12.1 inches tall, 7.2 inches wide, and 0.51 inches thick. Unfolded, it becomes 23.3 inches long and a scant 0.12 inches thick. It has two USB-A ports putting out three amps of current. This panel stands out for its all-around performance and its low price.

x-dragon 20w portable solar charger review - the x-dragon 20w is an all-around performing solar panel that costs...
The X-Dragon 20W is an all-around performing solar panel that costs less than most.
Credit: Sam Schild

Direct Solar Charging Speed


When it comes to performance, the primary metric of a solar panel's performance boils down to how well it can capture sunlight. The X-Dragon 20W did an excellent job functioning as a solar panel, performing well against the other panels in this review.


The three mono-crystalline panels have a solid conversion rate, turning up to 25% of sunlight into energy. This isn't the absolute fastest charging panel in our direct solar charging test, but it performed better than most others in our lineup.


To test direct solar charging speed, we hooked up all panels to identical 10,000 mAh battery packs and left them in the sun for one hour. We tested every panel at the same, in the same place, to account for differences in solar intensity. On a sunny day in Colorado, at 5,000 feet elevation, the X-Dragon 20W generated 1043.6 mAh of charge in one hour on its 10,000 mAh test battery. This is better than most other portable panels we tested and is almost as much as some bigger 50-watt panels.

x-dragon 20w portable solar charger review - we tested every panel with a variety of devices, from a 10,000 mah...
We tested every panel with a variety of devices, from a 10,000 mAh battery pack to our personal cell phones.
Credit: Chris McNamara

This panel is large enough to charge most devices and can put out up to three amps per USB output, which is impressive given its relatively small size. This means you can charge just about any USB device with this panel.

The panel also comes with several loops as well as carabiners. This makes it easier to dangle off a backpack, tree, or outside of a tent and allows for the panel to be angled more directly in the sun. We found that panels generally perform better when you point them directly at the sun. This means flat on the ground while the sun is high in the sky and at more of an angle as it gets lower in the sky.

x-dragon 20w portable solar charger review - the x-dragon lays flat and has carabiner loops to attach it to...
The X-Dragon lays flat and has carabiner loops to attach it to something.
Credit: Chris McNamara

Indirect Charging Speed


One of the most critical parts of a solar panel is the ability to collect sunlight even when the sun isn't blazing overhead. Chances are you'll need power regardless of the weather, so it's best if you don't have to worry if your solar panel will generate at least some power on a cloudy day. The X-Dragon 20W excelled here, outperforming many of the other portable panels we tested.


We tested portable solar chargers in partial sun using a white sheet suspended above every panel to simulate a "cloud" in a repeatable way. We hooked every panel to an identical 10,000 mAh battery and let them charge under the sheet for one hour.


In our indirect solar charging test, the X-Dragon 20W generated 535 mAh of charge on its 10,000 mAh test battery. This is better than most other panels performed in our simulated cloudy day test. The only panels that generated more charge were bigger, higher-watt panels.

x-dragon 20w portable solar charger review - the x-dragon 20w performed well under a thin white sheet to simulate...
The X-Dragon 20W performed well under a thin white sheet to simulate conditions on a cloudy day.
Credit: Jane Jackson

Where this panel really shines is when clouds obscure the sun. Catching so much sun under the cover of clouds means you can rely on this panel in less ideal conditions, which is crucial for any time you're outside. It's impossible to guarantee perfectly sunny skies, so having a panel that does well in indirect sunlight can mean the difference between a charged and dead battery. It may not always be bright outside, but the X-Dragon always generates some power.

x-dragon 20w portable solar charger review - many solar chargers have the capability to charge multiple devices...
Many solar chargers have the capability to charge multiple devices at once, but not all do.
Credit: Chris McNamara

Portability


Portability is essential when choosing a portable solar charger. No one wants to carry around a monstrous brick of a solar panel, especially when straying far off the beaten path, like while backpacking. The X-Dragon 20W is reasonably mobile and is light and packable enough to throw in your pack and bring along for many types of adventures.


Folded down, the X-Dragon becomes about the size of a notebook. It's roughly 12 by 7 inches and about half an inch thick. Compared with some of the panels we tested, this was a dream to carry around during testing.

x-dragon 20w portable solar charger review - the x-dragon 20w folds down to about the size of a notebook.
The X-Dragon 20W folds down to about the size of a notebook.
Credit: Sam Schild

It weighs just over 21 ounces, which is light for a higher-watt portable solar panel. It unfolds quickly and is light enough to prop up at whatever angle is best for solar charging efficiency.


Velcro closures at the panel's top make it easy to fold up and store. The velcro opens easily, allowing the three panels to immediately begin harnessing energy from the sun. When closed, the tough canvas material stays put firmly to protect the solar panels from scratches and damage.

It has a useful zippered pocket to store cables and other devices. An extra flap of material also protects this pocket to keep the charging ports and your cables free of dust and dirt. The pocket is a great place to store a device while charging to keep it from getting too hot while the solar panel sits in the sun.

It has several loops to hook carabiners to, so you can hang this panel off your pack while you hike or off your car or tent in camp. It also comes with four carabiners, which makes hanging it anywhere easy.

x-dragon 20w portable solar charger review - the zippered pouch is convenient for storing cables and a battery...
The zippered pouch is convenient for storing cables and a battery bank while you're transporting the pane.
Credit: Chris McNamara

Functionality


The X-Dragon 20W is an all-around user-friendly and highly functional portable solar charger. It's not the most high-tech, but it doesn't need to be. This panel has everything you need to create energy from the sun without many unnecessary features that would complicate using it and add extra weight.


When one device runs out of juice, the others follow closely. This means that being able to charge multiple devices is crucial. With two USB ports, the X-Dragon 20W can charge two devices simultaneously. We found during testing that you won't get as much juice when charging two devices simultaneously, but this is the case with every panel we tested.

x-dragon 20w portable solar charger review - the x-dragon 20w has loops and four carabiners to hang and charge it...
The X-Dragon 20W has loops and four carabiners to hang and charge it from anywhere.
Credit: Sam Schild

Should You Buy The X-Dragon 20W?


The X-Dragon 20W is a high-value solar solution. It's not the most powerful, but it's powerful enough to charge a few smaller electronics. It's one of the less expensive panels we tested and offers the highest watts-per-dollar of any panel in our lineup. It is highly portable and durable enough to withstand the abuses of travel. This panel performs as well as many more expensive models. It is an excellent option if you're looking for an affordable solar panel for everything from backpacking to hauling around town.

x-dragon 20w portable solar charger review - the x-dragon 20w is powerful and portable to take anywhere.
The X-Dragon 20W is powerful and portable to take anywhere.
Credit: Sam Schild

What Other Portable Solar Chargers Should You Consider?


If you're looking for a higher-efficiency solar panel that's still very portable and doesn't cost that much more, check out the BigBlue SolarPowa 28. The Goal Zero Nomad 50 is a higher-watt model that can be daisy-chained to additional panels when you need scalable power. For a very small, highly portable option when you just need to keep your phone from dying, check out the Goal Zero Nomad 5.

Sam Schild and James Lucas