This article was updated on October 2023
When you are enjoying yourself outside you want your smart phone to be working all of the time don’t you?
The problem is as we all know that today’s smart phones discharge their batteries at an alarming rate especially if used a lot. Well you don’t have to worry about this anymore as the solar power bank has come to the rescue.
Table could not be displayed.You no longer have to concern yourself with being in a situation where you have no power.
Just pull out your solar power bank and you can charge your devices again and use it for other applications.
The problem that you have is that there are a lot of solar power banks available. How do you know which one is the best? What we have done in this solar power bank review is find the top ones for you, so all you have to do is read each review and decide which one is best for you.
Reviews of Best Solar Power Banks
It was quite a task looking at the numerous solar power banks for you and whittling these down to the best picks but that is what we have done for you. There were a lot of performance and price variations so we able to identify the best 5.
We have created an individual review for each solar power bank so that you have all of the important information required to decide which one you should purchase. We have looked at the customer reviews and summarized these as pros and cons.
1. ZeroLemon SolarJuice USB-C/QC 3.0 review
If you are looking for a lot of power in your solar power bank then the ZeroLemon SolarJuice USB-C/QC 3.0 is the one for you. 
It has the largest capacity of any solar power bank in the world with an output of 26,800 mAh.
This solar power bank has a solar panel which will charge the bank when exposed to direct sunlight. It did charge in cloudy weather but it was obviously not as good. This is a very well made and durable bank that will withstand a lot of punishment when you are traveling around with it.
The design of this solar power bank is stylish, portable and compact. It only weighs around 20 ounces, which is remarkable for a bank that has this kind of power output.
It comes with a hook that you can use to attach it to your bag when you are hiking and it will charge in the sunlight.
The ZeroLemon SolarJuice USB-C/QC 3.0 offers you Type C / USB-C / QC 3.0 charging and this means that it is compatible with a wide range of devices. This includes The Samsung Galaxy S8 and S8 Plus, iPhone 6 and iPhone 7, the iPad, the Galaxy Note 8, MacBook for 2015 and 2016, Google Pixel and a lot more.
This solar power bank has other useful functions as well. There is an LED flashlight which can generate 400 lumens and there are 4 light modes. You can have your flashlight on maximum brightness, lower brightness, S.O.S. mode or in strobe mode. This is great for whatever situation you find yourself in.
The ZeroLemon SolarJuice USB-C/QC 3.0 has a type C input of 5 volts and 2.8 amps as well as a micro USB input of 5 volts and 2 amps. This means that you can charge the pack from a computer via USB or even with a suitable power adapter.
The solar charge input is 5 volts at 200 mA.
You have three outputs with this solar power bank. The first is a quick charge USB output which really does charge devices quickly. The second is a standard USB output rated at 1.5 amps. Then there is a Type C output with a 2.4 amps rating. The ZeroLemon SolarJuice USB-C/QC 3.0 is small measuring 6.9 inches in height, 3.26 inches in width and 1.3 inches thick.
The manufacturers really stand behind this solar power bank and will provide you with a three year warranty. They also offer good customer service on a 365 / 24 basis. The ZeroLemon SolarJuice USB-C/QC 3.0 is a very high quality product that will provide you with ample power when you need it.
ZeroLemon SolarJuice USB-C/QC 3.0 Pros
Summaries from real customer reviews:
“The best solar power bank I have used” – there were a lot of customers that were very complimentary about the ZeroLemon SolarJuice USB-C/QC 3.0 overall. There were comments such as “works great” and “incredible” in the reviews.
“Amazing charging power” – people were very happy with the charging power of this solar power bank. There were comments about a fully charged bank being able to charge smart phones up to 10 times.
“A very durable product” – one customer dropped the ZeroLemon SolarJuice USB-C/QC 3.0 and it still performed as good as the day it was new. It was felt generally that this product would last a long time.
“The price is great for what you get” – quite a few customers stated that they thought this solar power bank offered very good value for money.
ZeroLemon SolarJuice USB-C/QC 3.0 Cons
Summaries from real customer reviews:
“Solar charging was disappointing” – it was felt by a few customers that the solar panel did not provide enough charging capacity for outside use. The product will charge the battery bank but it takes a long time.
“It just stopped working” – a couple of customers claimed that their ZeroLemon SolarJuice USB-C/QC 3.0 stopped working after a short period of time. This was definitely not the majority viewpoint of this product.
2. Sozo 20000mAh Power Bank Portable Charger Review
This is another solar power bank that has a large capacity and will charge your devices easily time and time again. We tested it with an iPhone 8 Plus and it was able to charge 7 times from a fully charged bank. It will charge larger tablet devices about 4 times on full charge. 
The Sozo 20000 mAh Power Bank Portable is another well made product and is fairly compact in size so that it will fit in most pockets and even in your hand. It is just slightly larger than a standard iPhone.
This solar power bank measures 7 inches in height by 3.75 inches in width and is only 1.5 inches thick. It weighs in at 19 ounces which makes it lighter than the ZeroLemon SolarJuice USB-C/QC 3.0 but not by much.
The output capacity of the Sozo 20000 mAh Power Bank Portable is 20,000 mAh. It has a 5 volt and 2 amp input and three USB outputs all at 5 volts and different ampere ratings of 2.1 amps, 2 amps and 1 amp. It will not charge smart phones quite as quickly as some models but it is still pretty fast.
You can charge up this solar power pack in four different ways. You can use the solar panel provided in direct sunlight or with a lamp, you can use a USB cable connected to your computer or you can use an AC adapter to charge it from the wall.
There are actually Three light settings with the Sozo 20000 mAh Power Bank Portable. Practical for everyday use, camping or emergencies. The product is supplied with a USB cable for use with Android smart phones and tablets and they even provide a mini USB fan that you can use to keep you cool in summer.
Overall the Sozo 20000 mAh Power Bank Portable performed very well in our tests. The solar panel charging was really efficient and this solar power bank will provide you with a lot of power when you are on the go.
Sozo 20000 mAh Power Bank Portable Pros
Summaries from real customer reviews:
“Charges really well in direct sunlight” – a number of customers were really happy with the solar panel charging and the fact that the Sozo 20000 mAh Power Bank Portable would quickly charge in a few hours.
“So much power I rarely charge it up” – most of the purchasers were impressed with the power output of this solar power bank. Quite a few remarked that they do not charge the bank that often as it almost always has a charge available.
“Very good quality solar bank” – people liked the build quality of the Sozo 20000 mAh Power Bank Portable. They thought that it was rugged and durable.
Sozo 20000 mAh Power Bank Portable Cons
Summaries from real customer reviews:
“Solar charging just doesn’t work” – a few people were disappointed with the solar charging capabilities. Some said that they left the pack in direct sunlight for hours and this hardly charged the pack at all. These views were in the minority.
“Doesn’t work anymore” – there were a few reports that this solar power bank just stopped working and would no longer charge. Some people said that the pack would charge but the USB ports wouldn’t work afterwards. Again this was a minority viewpoint.
3. BEARTWO Solar Charger 10000 mAh Portable Solar Power Bank Review
The BEARTWO Portable Solar Power Bank provides a decent power output at a reasonable price. With a maximum output of 10,000 mAh this solar power bank is sure to meet your needs when you are out and about. It only weighs 7.4 ounces and measures 5.51 inches high by 2.95 inches wide and 0,7 inches thick. 
The solar power charging is not that powerful and it will take a few days to fully charge the pack in direct sunlight. The idea is to give you enough charge so that you can make a couple of emergency calls in a single day.
The BEARTWO Portable Solar Power Bank has two USB ports so you will be able to charge up two different devices at a time. The output of these ports is the same at 5 volts and 2.1 amps and charging smart phones is fairly fast. It is ideal for those days out where you don’t have access to power to charge your devices.
You can see the charge that this solar power pack has by looking at the four LED indicator lights provided. There are two LED torches with this unit which are certainly bright enough for night time activities.
This is a durable solar power bank which will withstand outdoor use. It has a hardwearing shell that should be able to withstand knocks and even drops. It is claimed that the unit is waterproof but we didn’t fully check that in our tests. It should be able to withstand rain but it is not a good idea to immerse fully in water.
You can charge the BEARTWO Portable Solar Power Bank by using a USB cable connected to your computer or with a suitable mains adapter. The input is 5 volts and 2 amps. We found that it took around 9 hours to fully charge this solar power bank using a mains adapter.
The BEARTWO Portable Solar Power Bank is a durable device that will charge your smart phones and tablets a few times before it fully discharges. It is not as expensive as the first two products but still has a good power output.
BEARTWO Portable Solar Power Bank Pros
Summaries from real customer reviews:
“The build quality is super good” – overall the customers were impressed with the build quality of the BEARTWO Portable Solar Power Bank. They liked the rubberized feel and felt it would withstand a lot of knocks outdoors.
“It really charges well” – there were a number of customer statements about how well the solar power bank charged smart phones. The capacity of this unit was enough for most people.
“An essential for that camping trip” – people that went camping liked the BEARTWO Portable Solar Power Bank. Some said that it was a real boon having this solar power bank when they were under the canvas.
BEARTWO Portable Solar Power Bank Cons
Summaries from real customer reviews:
“It just died” – a small number of customers had the disappointing experience of the unit breaking down on them. Either it wouldn’t charge or there was nothing at the outputs. This was certainly a minority view.
“Phone charging capabilities are not great” – a few felt that the smart phone charging capability of the BEARTWO Portable Solar Power Bank was lacking. They said that there were better phone chargers around.
4. Dizaul 10000mAh Wireless Solar Power Bank Review
This solar power bank has a very good solar charging ability. It has a Sunpower solar cell panel and the manufacturers claim that it has really good conversion of between 21% and 24% which will lead to faster internal battery charging. It is not recommended as the prime source for charging this solar power bank however. 
This solar power bank has a Grade A cell lithium polymer battery that has a maximum output of 10,000 mAh. The USB output is 2.1 amps and this will charge most cell phones fairly rapidly. It is claimed that you will get over 1000 recharge cycles from the Nekteck Solar Charger 10000mAh.
This is a fairly compact solar power bank that will fit into most pockets and is easy to use in one hand.
It is 7.6 inches high by 4.5 inches wide and 1.8 inches thick. The unit only weighs just over 10 ounces. There is an LED flashlight built in which provides useful brightness in the dark.
You can charge this solar power bank via your computer or from a wall outlet. It has a rain resistant design and is also shock proof and dirt and dust proof. We actually dropped our Dizaul Solar Charger 10000mAh review while testing it and it was fine afterwards.
Dizaul Solar Charger 10000mAh Pros
Summaries from real customer reviews:
“I can charge my iPhone 5 times” – there were a number of customers who liked the charging ability of this solar power bank. There were stories of 4-6 charges for iPhones and Samsung Galaxy phones.
“This is a well built solar power bank” – the durability and build quality of the Dizaul Solar Charger 10000mAh were commented upon several times. People said that it could handle camping, backpacking and other outdoor pursuits.
“The power output is good for the price” – many customers stated that they were happy with the price of this solar power bank and that the unit produced a good amount of power for the money.
Dizaul Solar Charger 10000mAh Cons
Summaries from real customer reviews:
“The solar charging is poor” – a few customers were unhappy with the solar charging capabilities of the Dizaul Solar Charger 10000mAh. They said that the manufacturers claimed great efficiency but this didn’t realize into a good charging product.
“The product melted in the sun” – a couple of customers said that they experienced the case melting when placed in direct sunlight. This was not the majority view.
“Packed up after a while” – there were some customers that reported their Dizaul Solar Charger 10000mAh packing up after only a short time of use. Again this was not the view of the majority.
5. Elzle 15000mAh Portable Solar Power Bank Review
The biggest issue with the Elzle 15000mAh Portable is that it is slow to charge. The power capacity is 15000 mAh and the two USB ports will output 5 volts but only 1 amp. With a fully charged pack you can charge iPhone’s and Samsung Galaxy’s but it will take longer than with solar charging packs. 
It is also true to say that the Elzle 15000mAh Portable will not charge most smart phones at their optimum charging speeds. There are two USB ports and it would have been better if there was just one providing an output of 5 volts and 2 amps. With a single port charging would be a lot faster than with two ports.
You can charge this solar pack by using an external power source. There is a micro USB input port and the charging configuration here is 5 volts at 1 amp. It will take around 5 hours to fully charge the pack from dead. You can use a wall powered charger of 1 amp to recharge the device.
The solar panel can also be used to charge up the bank. The recharge speed here is 5.5 volts at 0.21 amps. If your Elzle 15000mAh Portable is completely dead then you will be looking at over 10 hours to fully charge it. This is the minimum time in direct sunlight.
This solar bank has some interesting functionality. It has a built in LED flashlight that can be really useful when you are stuck in the dark. There are four capacity LED indicators at the top, and there is a power button which you will need to press to start charging your phone or whatever.
Another good thing about the Elzle 15000mAh Portable is that it is water resistant to a degree. Most power banks have no resistance to water at all. It can certainly handle being out in the rain but it will not be able to cope with a full submersion into water. This would probably damage the unit beyond repair. There are flaps that cover the USB ports when not in use.
The Elzle 15000mAh Portable is a reliable solar power bank that will do the job for you. It doesn’t solely rely on solar power which is a good feature, but you will have to wait quite a while for your devices to recharge.
Elzle 15000mAh Portable Pros
Summaries from real customer reviews:
“Does a good job overall” – quite a number of customers were impressed with the overall performance of the Elzle 15000mAh Portable. They felt that for the money it did pretty well and they were glad that they purchased it.
“Good for outdoor use” – there were a good few comments about how resilient this solar power bank was and how it was great to use outside because there was some waterproofing and it was pretty solidly constructed.
Elzle 15000mAh Portable Cons
Summaries from real customer reviews:
“Not enough charge” – a few customers stated their dismay that the solar charging capacity was just not effective on this model. One customer said that charging for hours in the sun was not enough to charge even one smart phone.
“Quality is poor” – some comments were received about the quality of this solar power bank. A handful of people stated that the bank had stopped working altogether only after a few charges.
Summary
There is really not a great deal to choose between these five solar power banks. If you are looking for quality and durability then the BEARTWO 10000mAh Ultra-Compact stands out at the top of the pile.
If solar charging is important to you then there is a clear winner which is the Sozo 20000 mAh Power Bank Portable. You can also charge this solar power bank by using an ordinary lamp at home.
It is really a question of power with these solar power banks. The more power that you want the more money you will have to spend. In truth you will not go wrong with any of the solar power banks that made our top picks.
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