Best Solar Power Banks

Best Solar Power Banks

World travelers, wilderness campers and worried moms alike all love solar power banks. That is because they give peace of mind in an era where we are all so dependent on access to charging the devices that we use in our daily lives.

Solar power is a great way to begin to depend a little less on the grid. Solar power banks are the most practical solution. Sometimes going off the grid isn’t just a choice, it’s a necessity.

Distinct from solar chargers, solar power banks hold charge. They just don’t charge your device when you lay them out and expose them to the sun. Instead, the idea is that they act as a way to store the charge from the sun for later when you need it.

However, many manufacturers designed solar banks so that solar charging is a secondary feature. It is either a way to implement and maintain charge or just for emergency purposes. That is a key consideration to keep in mind when choosing a solar power bank.

6 Best Solar Power Banks

RankingPower BankCapacityWeightSizeCharge TimeReviewPrice
#1feelle solar power bankFEELLE Solar Power Bank25000mAh1.30 lbs6.1" x 3.4" x 1.4"25-30 hoursRead Review
See Price on Amazon
#2ADDTOP Portable Solar Power Bank24000mAh1.2 lbs6.1" x 3.3" x 1.2"30 hoursRead Review
#3hiluckey portable solar chargerHiluckey Portable Solar Charger24000mAh1.19 lbs6.1" x 3.4" x 1.2"35-50 hoursRead Review
See Price on Amazon
#4ravpower solar chargerRAVPower Solar Charger25000mAh1.25 lbs7.1" x 3.5" x 1.2"85 hoursRead Review
See Price on Amazon
#5outxe rugged solar chargerOUTXE Rugged Solar Charger20000mAh1.15 lbs6.7" x 3.4" x 1.1"70 hoursRead Review
See Price on Amazon
#6beartwo portable solar chargerBEARTWO Portable Solar Charger10000mAh.46 lbs5.5" x 3" x 0.7"85 hoursRead Review
See Price on Amazon

Finding the Best Solar Power Bank for You

Solar power banks come in all shapes and sizes. They have widely varying capacities.

Some can hold a charge for weeks but are only good for a few charges. Others can charge all your devices multiple times. However, they won’t survive the elements.

Some solar power banks charge fairly quickly in the sun. Others can take days to charge from the sun.

It’s important to consider which tools you might use. There are some you might be able to do without.

In order to think of what might be most useful to you, you’ll need to think about what situations that you might be using the charger in. People intending to do different activities will likely look for very different uses.

Hikers, Backpackers, Campers

If access to a power outlet is going to be nearly nonexistent, and your usage of your device is going to be semi-limited, a power bank with the most solar charging capacity would be best for you.

At the same time, though, it’s also important to choose something that can resist the elements. Power banks with more solar panels tend to be more fragile. So finding the middle ground between durable, weatherproof and charging capability will be key.

Short-Term Travelers

The key question here is “How many charges can I get from it?” Usually short-term travelers won’t need to rely on the solar charging capability.

That is even if their destination is pretty remote. The power banks tend to allow for many charges. However, a solar power bank is more useful than a regular power bank.

That is because laying it out just once or twice during a short vacation for a few hours can give the bank enough juice to keep you going one more day. For daily uses of basic devices, that should be more than enough.

Worriers and Preparers

Whether you’re preparing for an impending natural disaster or the zombie apocalypse, a solar charger is an essential part of any emergency kit. A solar bank is extra useful because it stores charge. So you can make sure that you are ready for when disaster strikes, not just when the sun is out after the fact.

You might look for banks that hold their charge well. That way, you can prepare your kit. You can be assured that no matter when you need it, you just need to turn the power bank on. It will be ready to go.

People Who Just Can’t Seem to Remember to get Anything on the Charger at Night

You know if this is you. If it is, you probably leave the house with a dead phone and a dead power bank all the time without realizing it until you’ve gotten to where you need to be.

This can be especially bad for people that need their devices at work. Or, if wherever you’re going might not have a place to charge your phone.

It might sound a little over the top to buy a solar power bank for these kinds of situations. However, solar is the energy of the future. Solar charging can be accessible from anywhere. So it can be a good option for just about anyone.

Look for small, portable power banks. That way, you can just throw it in your pocket on the way out. You can even clip it to the outside of a bag to get you charging on the go.

How We Ranked the Best Solar Power Banks

As we’ve highlighted, for being such small devices, solar power banks can have a lot of variation between devices in many different ways. So in order to develop a list of the best solar power banks, we needed to consider quite a few different factors for choosing the best devices. In our list, we consider:

Amount of Times it can Charge an Average Device

When we say “average device” we refer to the most common new smartphones. Those include iPhones or Samsung devices.

Older phones might be able to get more charges out of the power bank. Larger, more energy-demanding devices, such as tablets, will likely get less.

The charge can also depend on outside factors. Those include the cable that you are using. So keep in mind that these numbers are averages in ideal conditions.

Like with some of the other factors, it is a good comparative reference point. A solar power bank with a higher average will charge more than one with a lower average. That applies even if the numbers aren’t spot on.

Amount of Time Needed to Fully Charge using Solar Power

For many of the solar power banks of our list, the answer is a lot. That’s because the solar panels are quite small. And the batteries that they are charging generally have a very large capacity. So charging them completely takes a significant amount of power.

Solar panels are also very dependent on their surroundings. It is also only possible to give an average. Solar power banks in optimal sun conditions will charge way faster than if you leave your solar power bank outside to charge on a cloudy day.

That said, even getting a few hours of charge on your solar power bank is often good for a few charges of your cell phone or other small device. So don’t be alarmed by the high numbers.

It is also important to remember that for some of the solar power banks, the intended use for the solar charging feature is emergencies. It is not intended to be a primary charging source.

So they are not designed with the idea of charging from zero in mind. Rather, they are designed to be a maintenance of charge. That should take much less time.

Battery Capacity

This is a bit of a tricky one. It is generally measured in mAh. That stands for milli Ampere (Ampere is unit of current and milli-Ampere is smaller unit of current) hour and is a unit of charge. This unit of charge tells how much charge a battery is capable of giving.

The problem is that to put any meaning to this number, you need to know how much current the device that the battery is powering is drawing. That can depend on so many factors. So it is impossible to say exactly how this will play out in a real-life setting.

In very general terms, though, the higher the mAh, the more charges you can expect the battery to produce.

Size and Weight

Power banks are made to be portable. So we checked the dimensions and weights of each of the solar power banks. We did that to make sure that the solar panels and batteries don’t make the devices too heavy or inconvenient.

Within the list there is some variation. But in general, most are not too much bigger or heavier than a smartphone. So they’re easily portable.

Durability and Resistance to Weather

Solar panels need to be outside to work. So this factor is pretty important. Solar power banks are little bit different than regular power banks that usually hang out in your solar backpack or purse most of the time, if not on their own charger.

Solar power banks are also a great tool for people who will be backpacking or trekking, so some solar power banks need to be extra weather-resistant for these uses. We looked at water- and dust-proof ratings, as well as included covers and the materials used to make the power banks in order to determine their durability and resistance to weather.

In addition to all these basic-level features, we also took into consideration any other extras the device might have. Those could include solar flashlights or emergency modes. That can add extra use and value to the power bank function.

If the device has any of these extra features, we’ll point it out. We will let you know how well they work.

Frequently Asked Questions

Can the solar power bank also be charged by a regular power outlet?

Yes. Every solar power bank on our list actually recommends first completely charging the device with a regular power outlet. Then, switching to solar only when you need it.

That is in part because solar charging will take much longer than charging from an outlet. Many solar power banks are designed for the solar charging capability to be a backup feature. Or it can be a way to maintain charge.

Solar chargers, which are a different kind of device than a solar power bank, only work with solar power. They do not store the energy in the device itself.

Instead, they simply transform it to charge your device. So they cannot be powered by a regular power outlet.

Why does solar charging take so much longer than charging from an outlet?

85 hours to charge is a pretty daunting number. Especially compared to charging on an outlet. That should take a few hours at most. There are a few factors that play into this large number.

First of all, solar just isn’t as powerful as electricity that comes directly from the grid. So it will charge the battery slower.

Second, climatic conditions can make the charging even slower. Cloudy days mean less direct solar energy, so it will be a slower charge.

It’s also important to consider how many charges the power bank will give once it’s fully charged. If the power bank takes 85 hours to charge, but can charge your device 10 times, that is just 8 hours of solar energy per a charge it can give. At the end of the day, that isn’t too bad.

It’s nearly impossible to calculate exactly how long it will take for a solar-powered device to charge. That is because of the environmental factors. So any time will just be an average calculation. It will be based on the estimated time that it needs in certain conditions.

Sometimes it might take longer than the estimation. Sometimes it will take less, just based on how the day is.

Will it charge my (insert device name here)?

The short answer: Probably. The long answer is a little bit more complicated.

The truth is that it depends a bit on which solar power bank you choose. All of the banks listed should charge any cell phone or tablet, or similar devices. But when you get into larger or less standard devices, the answer can vary.

Anything that gets plugged into a USB port can be charged in theory, but, for example, charging another portable charger with a power bank has the possibility to cause problems depending on how the input/output of each device is designed.

Other items such as cameras should be find if they charge via USB, but it is a good idea to check on the voltage that your camera can handle and what the output of the power bank is, just in case.

Larger devices such as computers and TVs likely will not charge on these devices because of the input options and their relatively low-energy output. When in doubt, it is a good idea to check. Most power banks have a basic list of the types of devices they are compatible with.

Will the power bank charge my devices slower because it is solar-powered?

No, actually some of the power banks even include cables and an option for quick charge, so they may even charge faster than the average power bank, depending on which one you choose.

Since the power banks are actually batteries that are charged either by a wall charger or by solar power, then the battery is what is used to charge your device, the fact that the power bank is solar-powered doesn’t affect the charging ability of the device, but rather the battery’s capacity and output are what determine the speed of the charge.

Do the solar panels make the power bank heavy?

Solar power banks aren’t necessarily light, but nor are they particularly heavy, and most of the weight actually comes from the battery itself, not the solar panels, which in reality are quite small.

The average weight of the solar power banks on our list is just over 1 pound, which is pretty normal for the capacity of this charger. There are some small power banks out there that are much smaller, but the tiniest, lightest ones tend to only produce 1-3 charges, rather than 5-6+.

Rankings and Reviews

Our rankings are for the best all-around solar power banks that we could find. The highest ones on our list combine the factors: amount of time it can charge an average device; amount of time needed to fully charge using solar power; battery capacity; size and weight; and durability and resistance to weather.

The lower ranked ones might be more specialized in a few factors, but that doesn’t mean that they don’t shine at what they do.

We’ll start off each review by highlighting some features of the device and a quick list of positives and negatives to give a summary of the highs and the lows of that solar power bank. Then, you’ll find a longer review, explaining the features and why we ranked it how we did.

Our #1 Pick: FEELLE Solar Power Bank

feelle solar power bank
  • Top Feature #1: The best solar charging ability: in order to get to full charge, you need just 25-30 hours in the sun
  • Top Feature #2: With a full battery, this solar bank can charge an average device 12+ times
  • The high points: the best solar charging ability of similar devices (approximately 25-30 hours), high battery capacity which allows for many charges, very durable, excellent materials, built-in flashlight
  • The low points: heavy for its size, potentially slow wall charging

The FEELLEE Solar Power Bank 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 fully charge the power bank via solar and with a full charge, it can charge most cell phones about 12 or more times.

The performance of the solar panels and the battery is what sets this solar power bank apart, but its excellent design should also be mentioned. It comes in a small case, which, when folded up, ends up being about the same size as most smartphones (it comes in at 6.1″ x 3.4″ x 1.4″ – an iPhone X is 5.73” x 2.69” x 0.31 in”).

The case is made of plastic and a synthetic leather that is both durable and aesthetically pleasing, combining both functionality and pleasant design.

In addition to the protective case, which is water resistant, the entire device has a rating of IP-65, which is a measure of water and dust resistance. A rating of 65 means that it is resistant to large droplets and splashes of water and moments of being completely covered in water, but not submersion, and it is completely dust-proof.

The case also has two USB ports (to charge two devices at the same time) which both have covers to further protect from dust and water damage.

Out of many choices, this one is combines efficiency with functionality, with thoughtful features that make it useful for every kind of user – from the hiker without electricity because it is the quickest solar charging device to the just people looking for a portable charger with some extra features because it is so practical.

The solar power bank also has a built-in LED flashlight which is also charged by the solar panels. It has three settings, Steady, “SOS” and Strobe, which, while just an extra feature, is a useful addition to the power bank. Not only does it use light, but it makes it too.

What do reviewers say?

Almost all reviewers note that the solar charging feature of this solar power bank far exceeded their expectations, where they felt other devices were slow or couldn’t hold up to a solar charger instead of a solar power bank, this device performed well. They also note the ease of bringing it along wherever they went and the high-quality, durable materials that it is made out of.

A few reviewers mentioned the usefulness of the charger in remote locations. One user used it while living in the jungle for months. It worked for them when battery banks were not enough enough to keep their electronic equipment charge. They also appreciated that it was waterproof and compatible with so many kinds of devices.

Others that are more casual, weekend campers mentioned its usefulness to them, too. It lasted 4 days for one reviewer, charging his phone multiple times along with his vape pen. It also worked well for another camper for three days, even when there was a mix of sun and clouds.

Other reviewers that were just looking for a high-quality charger for daily use appreciated that it charges fast and is an attractive color. Reviewers liked that it could fit in their bags and briefcases while not getting damaged.

A few reviewers actually put the battery to the test. They found that the charging output was great. It could charge some larger devices over 1.9 amps.

Basically, reviewers looking for many different uses of a solar power bank were all pleased with its performance, durability and design. They highlighted many of the features, from the battery to the case to even the flashlight and were all excited to use it more.

Features & Considerations

The one consistent concern with this charger was that the device is a bit heavier than the size suggests. While somebody might pick it up thinking because of its shape and size it will feel like a smartphone’s weight, it feels more like the weight of a can of beans (or a really big battery) and not the lithe smartphone we’re used to. Even people with those concerns, though, admitted that for the number of features that the small device brings, the weight was well worth it.

For as well the solar charging works on this solar power bank, there were also some disappointments about how quickly the solar power bank charged from a standard wall charger. Although not slow, the charger doesn’t charge at lightning speed either.

For those looking for a device that is mainly a power bank, with the solar feature as an extra, rather than a central feature, another device might be a better option for this reason.

Overall the FEELLE Solar Power Bank masters solar charging and good design. Its shortcomings are small in comparison with where it performs well and people looking for the best overall solar power bank would do well to choose this one.

Back to Reviews

The Next Best:

  • Top Feature #1: Great solar charging ability (approximately 30 hours to reach full charge in ideal conditions)
  • Top Feature #2: Can charge the average device 10 times
  • The high points: completely waterproof (IPX7 rating), great solar charging ability, excellent charging capability, quality case, capable of fast charging for newer phones
  • The low points: heavier than expected, slightly less efficient than other options


ADDTOP’s Solar Charger Power Bank is a close second in terms of both charging capability and solar charging ability, with just three solar panels instead of four. In ideal conditions this device can be fully recharged in 30 hours of direct sunlight, and that full charge can charge most cell phones about 10 times and tablet-sized devices 3 times.

This solar power bank is also completely waterproof with a rating of IPX7, which is considered waterproof and submersible to 3 feet. It’s not quite waterproof enough to go diving with, but it will survive an accidental dunk, which for most backpackers and campers as well as everyday users is more than enough.

It also comes in a high-quality, plastic and synthetic leather case, which folds the device together to also roughly the size of a smartphone. The final dimensions of this solar power bank are 6.1″ x 3.3″ x 1.2″, which is actually slightly smaller than the FEELE solar power bank, but still slightly larger than an iPhone X, for example.

The two-USB port design allows for two devices to be charged at the same time, and both USB ports are good for fast charging, meaning that newer devices with fast charging cables will still be able to use fast charging with this device. The USB ports are covered by a small panel to prevent dust and water from entering when not in use.

In addition to the charging features and the case, this solar power bank also comes with a LED flashlight, with three modes (normal, SOS and strobe). The thoughtful design and solid capability are what bring this solar power bank into second place on our list.

What do reviewers say?

Reviewers highlighted the material quality, battery life and durability of this solar power bank as being the best parts about it, repeatedly expressing their contentedness with the charging capability and the battery’s ability to hold its charge.

Many of the reviewers planning to use it in some sort of outdoor expedition. One reviewer who took it on a trip found that it charged their phone 7-8 times. They appreciated the ability to recharge it with the sun.

One of the few concerns about this charger was the weight. One reviewer noted that for daily life, the weight is perfectly fine, but a bit heavy for backpacking. Reviewers explained that the capacity is good enough to share with friends. However, the weight was not necessarily a good trade-off for them.

Features & Considerations

This solar power bank has some features that make it favorable for outdoor usage, such as being waterproof and the relatively strong solar capability, but its weight discouraged some users from committing to it as their choice for backpacking. Depending on which activity you plan on doing, this charger may or may not be right for you.

While it still has excellent solar charging capability, it is not the absolute best one, so if that is your number on priority, other devices may be a better choice. If sacrificing some solar charging capability for other pros is acceptable, then this device is probably perfect.

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Our Next Favorite: Hiluckey Portable Solar Charger

hiluckey portable solar charger
  • Top Feature #1: Completely waterproof
  • Top Feature #2: Can charge the average device 8+ times
  • The high points: completely waterproof (IPX7), relatively quick solar charging (35-50 hours), strap for easy carrying and attaching to the outside of a backpack
  • The low points: not the most efficient device, wall charging can be slow


Similar to the other devices thus far in the list, this charger still has a relatively good battery capacity in comparison to its solar charging ability. In general, it can charge a normal smartphone 8 or more times, and will take 35-50 hours to charge completely from the sun, depending on the conditions.

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 USB ports. They help protect them from water and dust.

The company, Hiluckey, also confirmed the many devices that it is compatible with. That includes a wide range of phones, tablets, and cameras. It also includes other miscellaneous devices, including other power banks.

If there is a device that you are unsure about, they likely have included it in their list. Or, they will respond promptly to let you know if it will work or not.

The case for the solar charger also has a strap to hang the device from a place where it can sit in the sun. That could include the back of a backpack. It will make it easy to make it easy to leave in the sun when possible.

This can be a really great feature to make up for the potentially longer charging time. That is because he device should be easy to mount in order to maximize the amount of time that it spends in the sun.

It also includes a similar LED flashlight to many of the other devices. There are three modes: steady mode, SOS mode and strobe mode.

It is conveniently on the back of the device. The case encloses it, and the battery powers it directly. That adds to the convenience to this solar power charger if you plan to use it in an emergency situation.

What do reviewers say?

Many reviewers liked the features of this solar power bank. They expressed surprise at how long the power bank held power.

They also appreciated how many times it could charge their phones. Users found that the solar charging actually worked. Reviewers rated the ease of use, battery life and durability as the three best features.

One reviewer used it during a beach camping trip. They attached it to their backpack with it flipped open. It was then able to charge in the sun while they are hiking. It kept their devices charged the whole time.

Others mention the great dual use – for outdoors purposes and in day-to-day life, highlighting the devices conveniences. Users enjoyed having the ability to charge it both on their car dashboard and to manually charge it.

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.

Features & Considerations

You will not be disappointed with the performance of this product, between excellent customer service and great functionality, it is a good choice. But, you might not be blown away. Some of the other devices on the market charge faster in the sun and yield more charges, and even the wall charging function isn’t the quickest.

Somebody that is looking for a durable, reliable solar power bank would do well with this choice. The responsiveness of the company via Amazon, in terms of explaining compatibility and a one-year warranty make it a safe choice, even if it’s not the most efficient.

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4. RavPower Solar Charger

ravpower solar charger
  • Top Feature #1: Simple but extremely durable
  • Top Feature #2: Can charge the average device 7+ times
  • The high points: simple design, durable, good battery capacity and ability to charge devices, easy to hang, waterproof, USB-C quick charge and iSmart quick charge supported
  • The low points: larger and heavier than other options, solar charging is very slow, bulky


For a one-solar-panel solar power bank, RavPower’s Solar Charger holds up to the job. Its high-capacity battery means that it gets as many charges as many of the other solar power banks, but with a design of just one solar panel instead of 3 or 4. You should definitely use the solar charging feature as a backup. Or, you can use it with the intention of topping off the battery. But if that is enough for you, then this device is perfect.

The RavPower Solar Charger will charge the average smart phone 7 times. However, smartphones that generally take less energy to charge will likely charge faster. It can also charge tablets and other larger devices 3-4 times.

This is a relatively competitive battery capacity, so although the device will take approximately 85 hours to charge in the sunlight, once it is full it will yield many charges. Topping the device off in the sun, after just a few charges certainly won’t take 85 hours, so a few hours in the sun might be enough to fill up the charge as long as it’s not empty.

The built-in case for the RavPower is durable. The manufacturer built it to last and resist turbulence.

It consists of a hard rubber. It has ribbing to make it easy to grip. The solar panel remains exposed, but the edges are raised to resist again cracking on the panel. It is also waterproof and dust proof. It includes caps to protect the USB ports, both of which support USB-C and iSmart quick charge.

On the top edge of the solar power bank. You can activate it with the click of a button. It has three modes: strong, SOS and strobe. It is conveniently right on the edge. That makes it the most feasible for use as a flashlight.

What do reviewers say?

Reviewers liked the durability of this solar power bank. They highlighted how well the battery holds a charge.

Some noted that their solar power bank was able to keep its charge for a month or more. Many also mentioned at least one of the features. Those included the flashlight, the clip to hang the power bank or the built-in case as features that they were glad to have.

According to many reviews, the best part about the solar power bank is its high-capacity battery. Reviewers noted that it charged very fast. They explained that it is durable but also bulky.

Some reviewers felt that this battery was a game-changer. They appreciated the built-in hanging ring and how easy it is to attach it to a backpack.

Features & Considerations

There are two distinct considerations about this device. The first is that it is a bit larger and heavier than other similar solar power banks and the other is that as efficient as the battery is, the solar charging leaves much to be desired.

The size is a concern especially because it is a single solar panel power bank, so the battery is much thicker than others. The dimensions of the power bank, including the case are 7.1″ x 3.5″ x 1.2″ and it weighs 1.25 lbs., making it the largest one in our list. It is a good choice if the size isn’t important, but if a large battery is a deal breaker, then this isn’t the solar power bank for you.

The other concern with this charger is the solar charging capacity. The company is very up front about the time that it will take to charge, stating clearly that users can expect to need 85 hours to charge by sunlight, but also stressing that this comes in part because of how much capacity the battery has. If you’re okay with the solar charging being a backup or a way to fill up the battery, then this is a great power bank for you.

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5. OUTXE Rugged Solar Charger

outxe rugged solar charger
  • Top Feature #1: Very, very durable – completely waterproof, shock proof, dust proof, etc.
  • Top Feature #2: Can charge the average device 4+ times
  • The high points: durability, two carabiners attached for hanging, quick charging, flashlight
  • The low points: relatively low battery capacity and long charging time, heavy, some have trouble with one of the USB ports


OUTEX stands for Outdoor Xtreme Energy, and OUTEX’s rugged solar charger promises to fulfill the need for energy while doing extreme things outdoors. The best part about this solar power bank is its strong durability. A decent battery with okay solar charging ability complements it.

The power bank is waterproof rated IP67. That means it should be fine if you submerge in water. (Make sure it is at a depth less than 3 feet for less than 30 minutes.) So if you accidentally drop it in a puddle or a shallow pond, there should not be any damage to the power bank.

It also is dust-proof. Despite these excellent features, you should still take caution in very hot conditions.

A durable case completely encloses the solar power bank. That protects it against all sorts of ways you could drop it.

The case consists of plastic and rubber. It is fortified along the edges and especially in the corners to reduce impact if it is dropped. It also has ridges to help provide better grip.

As part of the mentality of making it best for outdoor use, the power bank has two carabiners on it. There is one on the top and one on the bottom.

You can use them to attach it the exterior of a backpack or similar bag. That will help it to be able to remain charging over long periods of time.

The ability to leave it out like that ideally helps to make up for the long charging time in the sun. That is approximately 70 hours using just sunlight in ideal conditions.

The solar power bank should be able to provide four or more charges to the average smartphone. You can use the battery to power the built-in three-mode flashlight (bright, dim and strobe).

It is the ideal power bank for outdoorsy people needing a solar-powered power bank that will last through the elements. It gives up some solar capability and battery capability in favor of the rugged design. So if that is the number one priority, then this is perfect.

What do reviewers say?

Most of the reviewers on this solar power bank were indeed hikers, backpackers and other people practicing a variety of outdoor activities or people hoping to get into those kinds of activities. The ones that were happy with the product loved the durability. They were very happy by how many charges they were able to get out of it.

One of those backpackers used it on a 2-week backpacking trip. They were able to get four charges for two phones, and also charged a Kindle once.

Another reviewer had similar praises after a backpacking trip. However, she also wished it would have been lighter and that she could have gotten more out of it. Other reviewers also had concerns that while it was sturdy, it was quite heavy.

Features & Considerations

When making this device as durable and rugged as they could, the designers ended up also creating a lot of extra bulk to the solar power bank. At the end of the day, what you get in protection, you also get in weight in bulk.

Some backpackers prefer a lighter and slimmer device to save weight, while other feel that they need the durability, so depending on which you prefer, this device may or may not be the best one.

A few users also mentioned having trouble with the USB-C port and quick charging. It seems that the company was able to resolve their issues fairly quickly, but if quick charging via USB-C is a high priority, then choosing a device that specializes in that might be a better choice.

The other downside about this solar power bank is that it doesn’t have the highest capacity battery, nor does it have the best solar charging ability. Instead of the absolute functionality, this power bank considers the environmental factors to build a device that is rugged and charges okay.

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6. BEARTWO Portable Solar Charger

beartwo portable solar charger
  • Top Feature #1: Extremely light but still durable
  • Top Feature #2: Can charge the average device 4-5 times
  • The high points: light, durable, comes with a carabiner to hang on, fast wall charging
  • The low points: relatively slow solar panel charge and low battery capacity, covers for USB ports are not very reliable


BEARTWO saw the need for a lighter solar power bank, and they decided to fill that need. Weighing in at less than half a pound, this solar power bank is by far lighter than any of the other options and is among the lightest out there. For those worried about the weight of the other charges, this one is perfect.

While this power bank is very light, it didn’t sacrifice much in terms of protection for that lightness. It is still fully waterproof up to 3 feet and 30 minutes of submersion, protecting it from any accidents and comes in a silicon case that should be enough to survive mild bumps and falls.

The manufacturer designed the case with a triangular slot on one of the corners. It comes with a carabiner that slides into that slot. That way, you can hang it from just about anywhere. BEARTWO suggests hanging it from your pack while backpacking. That will allow it to gain a little bit of charge during the day.

The device also has the LED flashlight that is standard to solar power banks, complete with three modes: normal, strobe and SOS. You could use the light could as a flashlight to see in the dark. You could even just use it as a convenient light to see when you’re trying to plug in your device to the power bank at night.

The solar charging capability is the weak side of this device. In ideal conditions it will take 85 hours to charge. It could take even longer when not in direct sunlight.

It also only provides approximately 4-5 charges of a cell phone. So the amount of time needed to charge to yield a charge is quite high.

What do reviewers say?

Reviewers highlighted the lightness of this particular solar power bank. They were consistently happy with the extra features. Those included the carabiner and flashlight.

Users had mixed feelings about the charging ability. Some found that they were able to get more charges out of it then they expected. Others were very disappointed.

Users liked being able to charge it electrically at home. They appreciated also being able to store it on their dash of their cars. That way, it could continue to store solar power.

One reviewer was able to fully charge 6 iPhones once each. After that, the bank still had half of its power left.

Another reviewer was not as happy with it. He stated that it took a long time to charge his phone and it used all 3 bars of charge on the bank.

The reviewers that expected the solar charging to be a backup feature tended to be happy with the product. But those that were hoping for a solar charger felt that they had received a product very different from the one in the advertisement. Managing expectations seems to be key with this product.

Features & Considerations

Although this solar power banks advertises as being waterproof, part of the way that it gets this rating is by having small rubber covers for the USB ports to make sure that water can’t get into them. The problem with this is if the USB covers don’t stay on very well, because it can compromise the waterproof quality of this device.

Some users reported that the small rubber covers on their solar power bank didn’t stay on very well, so it is important to keep in mind that this device might not be completely waterproof.

The other consideration to have with this device is that it is not the most efficient in terms of solar charging or battery capacity. Because it is light, the battery is actually quite small, and the solar panel is also small, so they both don’t produce as much as other, larger products might, but if size is most important, it is still a functional, reliable power bank.

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Samantha Lee

About Samantha Lee

Samantha is a writer and translator interested in how people can make their lives greener. She has studied conservation, sustainability and development, and in the past has worked as a teacher in Argentina and in a variety of nonprofits around the US.