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7 Best Portable Solar Chargers in 2020 (Review)

If you want to have amazing outdoor experiences while staying connected to your devices, it’s important to get yourself one of the best portable solar chargers in 2020. These offer reliability for long-term trips, and they allow you to continuously charge a portable battery or a smartphone. They’re also small in size and have lightweight designs for optimum performance outdoors.

We will give you an insight into the top solar chargers in 2020 helping you decide which product is best for your needs. We also give you a few important tips such as:

  • What devices can you charge?
  • How many watts do you need?
  • How long do devices take to charge?

The Best Portable Solar Chargers

1. Nekteck 21W Portable Solar Panel Charger

front facing nekteck 21w portable solar panel charger

Key Features:

  • Waterproof
  • Smart IC technology
  • Lightweight

Key Specifications:

  • 800-1000 mA electric current production by module
  • Conversion efficiency: 21-24%
  • Power Output: 21W

Where To Buy

The Nekteck 21W solar charger is a smart solution developed to provide portable solar power rapidly to charge your phone.

The three high-efficiency panels are based on SunPower Maxeon technology, that allows them to reach 21-24% of conversion efficiency while providing enough power to charge two devices at the same time, using its dual USB 5V power output.

The product is embedded with the smart IC chip technology (maximizing charging speed to 2A per port) and also has a durable canvas to withstand possible damages that could be incurred during experiences in the outdoors. Moreover, each section produces up to 800-1000mA under direct sunlight conditions, making it suitable to charge an iPhone, tablets and smartphones, GPS, cameras, and other USB supported devices.

The universal waterproof solar charger also contains two outdoor hooks that can be used to hang the foldable modules on a tree, a tent, or inside the RV. Portability is also important for these types of products, and this is why having an ultra-light weight (18 oz) and compact size of 6.3x11x1 inches when folded is a remarkable feature of this product. Based on these features, you can also consider it as the ideal GoPro solar charger, since these cameras only demand 2.5W and need portability as well. Moreover, if you are looking for solar chargers for hiking, then Nekteck is also for you.

2. Anker 21W Dual USB Portable Solar Charger

side facing anker 21w dual usb portable solar chargers

Key Features:

  • Industrial-strength PET polymer
  • Steel eye-holes to hang on trees or tents
  • Dual USB solar charging

Key Specifications:

  • Weight: 14.7 oz
  • Dimensions: 11.1 x 6.3 inches
  • Efficiency: 21.5-23.5%

Where To Buy

The first important product in our list of best solar chargers is this product from Anker.

The Anker 21W dual USB has an energy conversion rate of solar power into electricity between 21.5-23.5%. Using 21W from SunPower solar cells, the product provides enough power to charge two USB devices simultaneously. This makes it the perfect charger for iPhone 7, Samsung Galaxy S7/S6/Edge and Plus, Nexus, HTC and more.

Also, the Anker 21W 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 6.3 inches and the ultra-thin design of 1.1 inches when folded, offers portability and simplicity, making it suitable for the camper or the adventurous one. Lightweight is also an important property, representing only an additional 14.7oz of weight to your backpack.

The Anker 21W has an incredible durability thanks to its PET polymer faced panels that are sewn into a rugged polyester canvas that provides water-resistant protection as well.

3. Goal Zero Nomad 7 Portable Solar Charger

front facing goal zero nomad 7 portable solar charger

Key Features:

  • Monocrystalline panel
  • 12V output port
  • Mesh storage pocket included

Key Specifications:

  • 5V/1A USB output
  • 7W power output
  • Dimensions (folded): 9 x 1.5 x 6.5 in (22.9 x 3.8 x 16.5 cm)

The Goal Zero Nomad 7 portable solar charger is another amazing option for those who are looking for portable solar power for camping coming from the highest quality brand in the sector.

These lightweight and easy-to-carry solar panels are designed specially to charge most handheld USB devices such as phones, GPS, headlamps, and small power banks. Actually, it is compatible as well with known battery banks of the brand such as the Flip 10 (2.5-5 hours to charge), the Guide 10 plus (3-6 hours to charge), and the Venture 30 (8-16 hours to charge). Besides, it also comes with a 12V-output for car chargers.

The Nomad 7 is equipped with a water-resistant cover that is foldable and that also serves as a protection for the PV cells. This cover allows you to take the portable product to camping experiences, hiking or even to the beach if necessary.

Moreover, the product features an integrated indicator light that will turn on whenever the solar panels are facing sunlight and are generating electricity. Regarding some important specs of the monocrystalline panel, the rated power output is 7 watts and it weighs as little as 16.2oz (460g).

4. BigBlue 5V 28W

side facing bigblue 5v 28w

Key Features:

  • Ammeter included
  • Steel-eye holes
  • PWaterproof

Key Specifications:

  • Power Output: 28W
  • Dimensions: 11 x 6.3 1.3 inches
  • Weight: 21 oz

Where To Buy

The BigBlue is another remarkable product that uses SunPower panels with a 21.5%-23.5% conversion efficiency to provide off-grid power for many outdoor activities such as camping, climbing or even fishing.

Integrated with Smart IC technology, the portable solar charger assures the fastest possible multiple devices charging speed up to 4 Amps.  Moreover, the product is equipped with a special PET Polymer surface with an industry-strength that protects your device from any damage. It additionally guarantees IPX4 waterproof level protection.

Considering the 28W power output available, the weight of the device exceeds the expectations at 21 oz, and the folded dimensions are 11 x 6.3 x 1.3 inches. The dual-port power applies to all the Android devices, making it the ideal solar cellphone charger.

Additionally, this product has an interesting feature. Unlike other products, the product includes an ammeter to verify the actual electric current production of the units. Typically when you charge an iPhone it will demand 1A, and with the ammeter, you will be able to check the values between 1A-0.8A. This will also become handy to check if the device is working or not.

5. RAVPower Solar Phone Charger

side facing ravpower portable solar chargers

Key Features:

  • iSmart Technology
  • Smart IC frequency technology
  • Compact size and lightweight

Key Specifications:

  • Efficiency conversion: 21.5-23.5%
  • Folded dimensions: 28x12cm
  • Power Output: 24 W

Where To Buy

RavPower Solar Charger is an American brand with almost 7 years of experience, delivering portable power banks and chargers for mobile devices to America and Europe, reaching almost 400 thousand members in 2018.

This product has a high energy conversion rate. Designed with high-efficiency cells that can convert up to 21.5-23.5% of solar energy into electricity, this represents 23.7% more power conversion than traditional cells.

Moreover, this device incorporates the Smart IC frequency technology which detects all the connected devices and efficiently distributes the current output up to 4.8A when used under direct sunlight.

The compact size of the product is crucial. When folded, the dimensions are barely 28 x 12cm, a size that can easily squeeze in your backpack when you go hiking. Another important detail is weight. RavPower offers a product that has the perfect size for a portable power source.

This outstanding but cheap portable solar charger has three integrated USBs ports of 5V DC and at least 2.4A to charge three USB devices such as iPhones, iPads, Galaxy Note, LG, and many other cell phones using the iSmart charging technology. This feature allows the product to detect the small device and adjust the maximum current allowed to increase the charging speed.

6. Foxelli Dual USB

front facing Foxelli Dual USB

Key Features:

  • PET polymer protection
  • Dual USB charging ports
  • Waterproof

Key Specifications:

  • Weight: 16.66 oz
  • Power Output: 10W
  • Thickness: 1.2 inches when folded

Where To Buy

Foxelli offers one of the greatest solar powered portable chargers for the camper and the adventurer.

Using a polycrystalline unit, the Foxelli solar charger is able to charge up to two devices at the same time. Integrated with smart charging technology, the product powers devices delivering up to 1.85 A in total.

As with other portable solar chargers, Foxelli offers this dual USB charging ports option to the market to charge multiple devices such as an iPhone X, an iPad, Samsun Galaxy Note, Edge, mini, S8, S7, an LG smartphone, a GoPro camera, a Kindle, and other electronic devices.

Given its power output, the device has a small size and weighs only 1.1 lbs. It’s ideal to use for backpacking, hiking, camping, or other activities since it has 11 built-in loops to attach the modules to the backpack.

Another advantage is that the product is waterproof, which also makes it suitable to do other extreme activities such as kayaking or canoeing. And in case you are worried about its durability, you will realize that the PET polymer cover will make the device resistant to water and even dust.

7. X-DRAGON Portable Solar Charger

side facing x-dragon portable solar chargers

Key Features:

  • Built-in Smart IC chip
  • Surge and short-circuit protection
  • Weather-resistant durability

Key Specifications:

  • Conversion efficiency: 22-25%
  • 5V/2A dual USB output
  • Net weight: 40.8 oz

Where To Buy

The 40W X-Dragon solar charger is a remarkable power supply power supply with a high-output rating making it ideal for those who are looking for portable solar power for RV’s.

To maximize its power output, the X-Dragon is built with panels from the top efficiency brand in the market, SunPower. The solar cells of these monocrystalline units have a conversion efficiency that varies between 22-25% under direct sunlight exposition.

Efficiencies are usually between 15-18%, which means that you could obtain up to 50% more solar power with these cells than with others available in the market.

As with previous models, the product includes a dual USB port that has a 5V/2A output, but to be considered a good solar charger for camping, it also has an 18V DC voltage output that makes it perfect to charge electronics like laptops, tablets and other 18V devices or even 12V car batteries.    

The X-Dragon has also a built-in smart IC chip to optimize the distribution of electric current up to 2.8A under direct sunlight. My favorite feature about this product is that unlike other models available, the X-Dragon includes surge and short circuit protection for the multiple devices that may be charging. Based on these features, you can consider this product as a great solar charger for laptops.

How to Choose Your Device – 5 Things to Look For

portable solar charger on the grass

Weight

One of the most important variables to consider at the moment of choosing a portable solar cellphone charger is the weight of the device.

Depending on the outdoor activity that you want to do, the weight will become less or more important. For instance, if you are looking for a solar phone charger for camping purposes, a lightweight device will not be as crucial.

You will be able to place the device hanging on the tent or in the ground, and if you want to save it, you can simply put it back inside the tent or the RV.

But if you are going hiking or trekking, every additional gram counts. The best solar chargers for backpacking must be lightweight, and it must also be the first variable to take into account. Otherwise, you will start thinking that the charger does more harm than good.

Portability – Size

Another important factor is the portability of the charger. Here, two aspects enter into the scenario.

First is the way that you can carry the device. Some products have included steel loops that can be used to attach the device to a backpack or to hang it on a tent, but many do not include this feature.

When you go to the outdoors there are high probabilities that you will have to carry water, bags, lanterns and other things, and is most probable that your backpack will eventually get full with other stuff.

Therefore, adding a charger inside the backpack is not always possible. The best solar charger for hiking should have included a steel loop or steel eye-holes for easy carry on the exterior side of the backpack. In other words, the ability to hang the device is very important. However, if you are going camping, this variable could be considered as an additional since the device won’t be constantly moving and won’t represent a valuable space inside the backpack.

The second is the size of the USB solar charger. Unfolded dimensions are important to have an idea of the surface area needed to start charging multiple devices. That being said, folded dimensions are also crucial since they will give you a reference of how much space you will need in your backpack or in your tent.

Power Output and Efficiency

The next thing that you need to look at are the specs. The efficiency of portable products is essential. This is a parameter where you cannot save expenses because doing so will imply a disappointment in performance every time.

Decent efficiency values should be between 19%-25%. In this case, purchasing brands that use cells manufactured from the most efficient brand in the market (SunPower) is probably a good idea since you will receive additional power.

The power output is also very important since it will give you an idea of whether or not your device is able to handle a single USB device or if it will be able to charge multiple devices.

Accessories and Features

Another important detail is the accessories that the product includes. Does it have a single USB port? Or dual USB ports? Are there any adapters included? Does it have a built-in LED light or any other features built-in?

Considering any valuable additional feature or accessory included without representing an important additional cost is a variable to take into account in the selection process.

Cigarette lighters, overcharge or short-circuit protection, or power banks are typical accessories or features that are always well-received by the customer.

Protection

Finally, given the nature of the activities and the environment where the chargers will be performing, there is absolutely no doubt that having a weather-resistant charger is a crucial factor to take into account.

Many products have a PET polymer-based protection that guarantees that the device will be guarded against any possible damp or drop in hard landscapes. Take a look at this feature. Also, if you are going to practice kayaking, fishing, or sailing, make sure that the product you buy is waterproof.

What is the Most Powerful mAh Device?

portable solar charger on top of a car

The most powerful mAh solar charger is the one that contains the highest power bank capacity.

The best solar battery charger from a capacity perspective is the CXLiy Portable Charger Power and Solar Charger with 25,000 mAh of energy capacity. The product has a relatively small surface area and has two USB ports that can be used to charge multiple devices when fully charged. It also features built-in LED lights for illumination and SOS lights as well.

Besides, its light weight and portability make it the perfect solar phone charger. The warranty provided up to 24 months is also another interesting feature to take into account.

It is important to mention that there is a difference between the most powerful mAh solar charger and the most powerful watt portable solar charger. The first one acts as the best portable solar battery, able to store a lot of energy to charge multiple devices, several times, but the instant power output to charge the power bank will probably be low.

The second one is referred to as the portable solar charger with the highest instantaneous power output. Based on this, we can select the X-Dragon solar charger as one of the best available choices in the market that will allow you to charge a phone, a tablet, an iPad, a laptop and so powerful as to be considered as a 12 volt solar battery charger.

What is the Lightest Device?

Based on our top 7 list of the best portable solar chargers in the market, we can conclude that the brand that offers the best balance between power output and weight is the Anker 21W Dual USB small portable charger.

As we discussed in the product section, this charger has included solar panels from SunPower at a maximum efficiency of 23.5%, which maximizes the power output that the cells can produce, and reduces the size of the product as well.

However, there is another solar charger that offers the lightest and most reliable solution for the entire market: The Solar Paper by Yolk Station: considered as the world’s thinnest and lightest solar charger.

At only 4.8 oz., it also has a 0.4-inch thickness with a 5W power output and 1A output. The charger does not have an integrated battery and features 23.7% efficiency values with an LCD amp meter that shows the charging speed.

The solar paper is only enough to charge a phone, but you can add more capacity by using expandable magnets that will give you enough power to charge a tablet (including 2 or 3 solar papers).

We hope you liked this article. Please rate it or leave us a comment.

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2 Comments

  1. Avatar
    Tobias Claren

    All only with 5V-USB-Output?
    20W, 21W etc., but i could not use it for fast charging a smartphone with 9V/1,67A (15W)?
    Or 45W super fast charging.

    1. Carlos

      Hi Tobias,

      So these solar chargers are not intended for providing a USB 9V output. If you want to charge your smartphone faster I’d recommend you to go with the Sunjack which includes two power banks with Quick Charge 3.0 that will be able to give you up to 18W. You can also check the Zerolemon power bank in case you like it.

      Best
      Carlos

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