Best Cell Phone Solar Chargers in 2020

Aonidi Solar Charger 26800mAh Power Bank Portable Charger Battery Pack with 3 Outputs & 2 Inputs(Micro USB & Type-C) High Capacity Backup Battery Compatible Smartphone,Tablet and More Review:

 I absolutely love it.
I must admit I have quite a collection of solar power banks. And this one seems to be one of the best well-made ones.
If you never had a solar power bank notice that it takes a long time for it to charge by solar, I was unaware of it when I bought my first solar power bank.
Seriously, this one is well built. Great quality. The package was nice.
It is of 26800mAh, the biggest one I have so far. It is almost the double of most solar power banks that I’ve seen out there, usually 12000 and 15000. I like the light indicator, it’s easy to understand when it’s charging by solar and the current battery level.
The flashlight is great. It is very resistant.
The wireless charging is very convenient and works perfectly.
Because it is of a bigger battery capacity it is a bit heavier than others, but not much. I suggest checking weight and battery capacity when looking for a solar power bank.

Solar Charger 26800mAh, ORYTO Qi Wireless Portable Solar Power Bank External Backup Battery, 3 Outputs-5V/3.1A & 2 Inputs Huge Capacity Phone Charger for Smartphones, 18LED Flashlights for Outdoor Review:

 This battery has all the features I have always wanted.
Its high capacity complements long trips; I can charge multiple devices at the same time. It has 2 USB outlets, plus the wireless charging pad that works without any problems with my iPhone 1.

This battery can be charged with the USB type C that makes its charging super-fast, it also has the regular micro USB charging port.

What I like the most is that is waterproof and the modern design of the wireless pad, and it could be charged directly from the sun. Basically all the features I ever wanted, Solar, USB Type C, wireless charging, high capacity power bank.

The only thing that you need to be aware of, the wireless charging pad works on 5W, if you would like ti charge your phone using the wireless option it won’t be fast.

Definitely 5 STARS.

Portable Charger Solar Charger 26800mAh Solar Power Bank Detachable Solar Panel For Outdoor, 2 Inputs 2 USB Outputs, Water-Resistant Charger Pack with LED Flashlight Compatible Most Phones, Tablets Review:

 Very nice and well built power bank, this thing is solid! It's got 4 panels for fast solar charging, definitely for travel, camping and definitely for emergency power when needed, this TN4 power bank is an upgrade for me from a 9600 mAh power master power pack which still does work at 75% capacity. But the beast I have now at 26800 just blows it away, I charged the unit already mAh it took about 10 hours plugged into the wall all blue lights stopped flashing when it was done, I plugged in my galaxy J7 perks which only had about 14% battery left and the beast charged it up no problem and is still showing full power! This is definitely worth the money, when you open up the solar panels in the sun it immediately starts charging. Can't go wrong on this one.....

Solar Charger 15000mAh, Elzle Portable Solar Power Bank Dual USB Backup Battery Pack Charger, Outdoor Solar Phone External Battery with 6 Led Flashlight for iPhone Series, Smartphone, More (Orange) Review:

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 This solar charger is great for my camping trips. It holds enough juice to charge my phone 3 times!!!

Solar Charger Power Bank 25000 mAh Portable Charger 3 Output Battery Pack with Flashlight Including Small USB Fan Compatible Android Phone Tablet and Other Smart Devices Review:

There are 2-5V/2amp usb ports for charging cellphones, tablets, etc... and 1-5V/1amp usb used for low amperage accessories like the fan that is included and usb reading lights etc... The Fan works Great!
It is not water proof! It will however, dispurse light rain and drizzle as long as it is laid flat! Tested by a passing shower while in Florida!
The flashlight is slightly brighter than my iphone 6s light. And will use 25% of the battery charge after 3hrs 20min of use.
The initial charge of the unit out of the box was at 25% when I first opened the package. From there I charged the unit to 100% via wall plug-it took 8hr 45min to fully charge. The 2-5V/2amp usb ports can charge both an iphone and ipad simultaneously! The iphone at 20% took 1hr 53min to charge 100%. The ipad at 10% took 2hrs 15min to charge 100%. The solar power battery bank was at 50% at the end. It will charge an iphone 5.5 times and an ipad 4 times, each time when the device is at 20%.
+The unit will not charge devices and recharge on solar power.
+when charging with solar power-the unit needs direct sunlight. Indirect sunlight and indoor lights are like a trickle charge for the battery bank. -it will take 2 8hr days of direct sunlight to recharge the unit from 50-100% charge. And 4days 5hrs of indirect sunlight when set on a window sill all day sunrise to sunset. And 140+hrs indoor lighting with frosted cool white lightbulbs used for test. It would be quicker if leds or clear lightbulbs are used because they give off more light!
The durability of the plastic shell is not great. It will handle being dropped from time to time, but will not take neglect and abuse too well! As long as you are careful and mindful of the device, it will last a long time.
Great product and dependable.

BigBlue 3 USB Ports 28W Solar Charger, 5V Foldable Waterproof Outdoor Solar Battery Charger With SunPower Solar Panel Compatible with iPhone X/8/7/6s, Samsung Galaxy LG etc. Review:

This worked better than I expected. My phone has a crappy battery and I recently went hiking in Zion National Park. We spend the entire day without power and at the end of it I had a well charged phone.

It works best in good lighting of course. Overcast and shadows ruin it's power output. It won't work from just home lights, I tried haha =)

My phone charges surprisingly fast. Even when a second phone is attached. I was able to take all the photos I wanted with no issues!

I personally strapped mine to my camelback and used some mini bungees to do that. There are loops on the sides that make it easy to strap it to a backpack.

Only downside I can think of is that the plastic coating gets a little scratched from rocks or plants, but it's only cosmetic. It still looks great and works like a champ. I will be using this thing all summer, if anything changes I will update. I consider this a great buy!

Hidver Solar Phone Charger 20000mAh Portable Power Bank Waterproof Battery Packs with Dual Ports, Compass, Flashlight for Camping Solar Panel for Smartphones,GoPro Camera,GPS and Other Devices Review:

I love having this small portable solar charger. I try to be eco-friendly, and I use this to charge my phone and/or Kindle at night after it's solar charged all day. The 20,000mAh size is wonderful. Of course, it's also nice to just charge and save as a power bank. Particularly useful with the flashlight for potential power outages.

Solar Power Bank, Qi Portable Charger 10,000mAh External Battery Pack Type C Input Port Dual Flashlight, Compass (IPX4 Splashproof, Dustproof, Shockproof, Solar Panel Charging, DC5V/2.1A Input) Review:

On opening this product my first impressions were very favorable. It has a very sturdy feeling and I really like the black and orange coloring. It also comes with a compass that can be attached using the included carabiner. There are two LED lights that would be very convenient in a power outage. Overall I really like the feel of this power bank.
The unit came fully charged and I immediately plugged it into my phone and charged it up. It charges very quickly. My phone has an extra large 36 hour battery so it takes a little longer than a normal phone but it charged it up very quickly. I recharged this unit by plugging it in using my phone charger and cord with no problems. It seems to recharge very quickly also.
I use this on a day hike. It was very handy and didn't weigh a lot. I was able to attach it to my backpack to allow it to charge while I was hiking. I had fully charge it before I left but just in case. I purposely use the GPS on my phone and some other features to run down my battery. I did plug my phone into this power bank and charged it right up in just a short time.
My cat put the unit to a drop and shock test unbeknownst to me. As I left it on the kitchen table and my cat thought it would make a great toy when I was out of the room. No damage from the drop nor was there even any type of appearance that it had been dropped.
We get a lot of rain this time of year so I had it outside on the patio charging in the sun and one of those brief summer showers came on us suddenly. Other than a few raindrops on the unit there was no ill effects. I don't know if I could recommend leaving it in a rain all the time but it didn't seem too bothered it any.
so the bottom line is this, it is a very nice power bank. I don't own a phone that charges wireless so I could not use that feature but I'm sure it works great. I believe, that this item is a good product for it price range. As with all products there's always room for improvement but I like the unit and I think anybody who purchase it would also like it.

Portable Solar Charger, BEARTWO 10000mAh Ultra-Compact External Batteries with Dual USB Ports, Solar Power Bank with Flashlight for Camping, Outdoor Activities Review:

I'm a trust but verify type of guy, and I took this apart upon receiving it. Circuitry is not complex, but it does have the basic necessary charge controller for the solar input, as well as the boost circuitry for charging at 5v from the 3.7v battery. Based on the info printed on the cell itself, it appears to be of the 10,000 mah capacity as advertised (@3.7v).

It has 2 outputs, and the ratings for each are actually different. Output 1 provides 2A @5v, and output 2 provides 1A@5v. Definitely use output 1 if you only need to charge 1 device. As you can see in the pic, it does genuinely put out 2A.

The solar panel is really for a complete emergency situation where you're stranded with no other power source and the batt is dead. It bright sunlight, within a few hours, it will give you enough juice to make an emergency call, but it would take over a week of sunlight to fully charge. Definitely useful in an emergency, but charge it from a regular charger for normal use.

POWOBEST Folding Waterproof Outdoor Wireless Power Bank 20000mAh, Solar Battery Pack Charger with LED Flashlight and 3 Foldable Solar Panels, Portable Charger, Charge 3 Devices Simultaneously Review:

 I have wanted a solar charged power bank for a while. I go camping from time-to-time, and it worries me that if iPhone X runs out of charge, I will lose many opportunities for photography. Yes, I bring a couple of power banks, but even those don’t last on longer trips. Another point of discussion here in the SF Bay Area is the thought of a disaster like a massive earthquake. I wanted to have a solar chargeable power bank for my “go-bag” just in case.

When the Powobest device came, I was immediately impressed by its ruggedness. Sturdy plastic and simulated leather give me confidence that this would endure rough handling and even some rain. The three USB ports are protected by a tethered cap that should keep moisture and dirt out in between uses.  

The product has five functions:
1. Charges devices connected to it via USB ports.
2. Charges devices lying on top of it. (Inductive charging)
3. Can be charged via a USB cable.
4. Can be charged by the sun.
5. Has a built-in flashlight. 

The biggest concerns I have for a product like this are:
What is the actual capacity of the PowerBank? (how closely reality matches the published rating)
Are the solar panels of sufficient size and quality to do a non-trivial amount of charging? (let’s make sure that the solar panels are not just a sales gimmick)

Let’s test!

Here are the specs:

Model YD-820W
Capacity 20000mAh / 3.7V (74Wh)
Solar charging: 5.5V = 600mA  (Note: 3.3 Watts per hour.)
Input: 5.0V = 2.0A(Typ)
Output(1)/(2): 5.0V = 2.1A(Max)
Wireless Output: 5.0V = 1.0A
Output (Total): 5.0V = 3.0A

Let’s take the raw capacity of the batteries inside the power bank and do a test.
The specs claim 74Wh of capacity. My test procedure was:
1. Completely charge the power bank.
2. Meter the power drawn from the power bank while under a load of 5V @ 1A rate. **
3. Compare the Watt Hours (Wh) my test was able to pull out of the power bank with the published number of 74Wh.
4. Scoring. This needs some explanation. The rated Wh of the power bank is based simply on on the combined theoretical capacity of the 3.7V cells inside rather than on a standard test. Energy is lost at every connection, inside and outside the power bank, including voltage and current regulators, cables, the device being charged, etc.. . Finally, the load device and the test meter I use have an unknown effect on the amount of power drawn out—both in energy loss as well as inaccuracies in the meter itself. As a result, I consider 70 percent or higher to be a passing score.

Result: (see attached photo)
PASS: The test took almost eleven hours to complete, and it drew out 55.72 Wh of power. Compare this to the rated 74Wh of power published by the company, and our test showed a score of 75.3%. This is 

The next test looks at the speed of solar charging. 
The specs claim 5.5V @ 600mA. This is equivalent to 3.3 Watts per hour charge rate. My test procedure was:
1. Completely discharge the power bank.
2. Charge for 5 hours of mid-day sun (season: summer).
3. Meter the power drawn from the power bank while under a load of 5V @ 1A rate. (just like we did in our initial capacity test).
4. Compare the expected charge rate (3.3 Watts per hour) to the test result: X Watts generated divided by 5 hours equals Y Watts per hour.

Result: (see attached photo)
PASS: After five hours of sunlight, I set up my meter to monitor a load of 5V @ 1A discharge rate. The result was 17.16 Watts (the amount of power the solar charging operation stored in the power bank). Dividing that number by 5 (hours) gives us 3.4 Watts per hour, which is slightly above the published solar charge rate of 3.3 Watts per hour.  

**Note: In the photos, you may see a metered voltage of less than 5V. When the power bank is low, it can no longer sustain 5V of power, so will drop down to around 4V. However, I am measuring the Wh, so for the purposes of capacity testing, it does not matter. (See attached video) Take a look at the video I posted—it is a quick time-lapse of the entire 9-hour test and will show how the voltage is fine until right before the bank goes empty.

Let’s take a look at wireless charging. I have not found a great way to do an analytical test of this function. The problem is that I do not believe the results of my load meter, which just measures the power being used in the charging process. It does not measure actual energy being stored in the phone’s battery. For example, inductive charging can generate heat, which is wasted power. A test meter will pick up this energy loss, which never makes it to the battery itself. This test will be more qualitative than anything else.  

Test Result: Conditional Pass: The app indicated a slow charge rate, which I’ve found to be what many inductive chargers score on my iPhone X.  When I come up with a good analytical test, I will update this review. Android devices generally charge at a faster rate, due to Apple’s conservative approach to preserving battery life, so better results are expected with those devices. The one concern I have is that the surface of the case is slippery, so if you don’t use a case with your iPhone, then you will need to charge on a level surface, or the phone will slide off.  Alternatively, use a rubber band to keep it in place! :) Not a big deal for me, as I usually keep my phone in a silicone case.

Finally, how is the flashlight? No, I’m not going to test the lumen produced by this light. All I can confirm is that it works, is reasonably powerful and could be useful in a disaster. (I tend to use my iPhone as a light, and I actually own a few real, dedicated flashlights that do a good job. )

Overall, I’m thrilled with this power bank. It is high capacity, rugged, can charge itself via integrated solar panels and even has a convenient inductive charger.  The company published accurate capacity numbers, so I believe their staff is both ethical and proud of their products.

Highly recommended!