GoerTek 25000mAh Battery Portable Panel Solar Window Charger

Last updated date: May 14, 2020

DWYM Score
9.3


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We looked at the top Solar Window Chargers and dug through the reviews from some of the most popular review sites. Through this analysis, we've determined the best Solar Window Charger you should buy.

Overall Take

Made using environmentally friendly material, this charger is an excellent choice for families. It's able to charge three devices and has a built-in li-polymer battery. It also doubles as a light source when camping or traveling at night. In our analysis of 68 expert reviews, the GoerTek GoerTek 25000mAh Portable Solar Window Charger placed 2nd when we looked at the top 10 products in the category. For the full ranking, see below.

Editor's Note May 14, 2020:
Checkout The Best Solar Window Charger for a detailed review of all the top solar window chargers.

Expert Summarized Score
0.0
7 expert reviews
User Summarized Score
8.8
2,584 user reviews
Our Favorite Video Reviews
What experts liked
The device is rated at IPX6 waterproof, meaning it can handle heavy downpour like a champ and still keep going. Small indicator lights show your battery life as well as if your solar panel is charging the battery. At 1.2 pounds, it’s on the heavier side compared to other smaller charges on our list, but that’s to be expected as its 2.5x the battery capacity of those as well.
- Earth Techling
The GoerTek ES982 is a powerful, 25000mAh solar power bank. It has a compact design, and only weighs a little more than a pound. In addition to recharging via solar, it can also be recharged via USB, like a standard power bank. It features a built-in carrying loop, along with a carabineer that allows it to be mounted just about anywhere. It even has a flashlight built-in, so it can serve multiple purposes.
- Power Bank Expert
The GoerTek solar power bank is one of the most remarkable and requested products available in the market with remarkable performance and quality. Using a black cover and a lithium-polymer battery with a 25,000mAh capacity, the power bank can be used for charging an iPhone XS for up to 7.4 times, a Galaxy S9 Plus for nearly 5.7 times and an iPad Pro for nearly 1.6 times assuming a full charge.
- Solar Hub Energy
This beast features a huge battery in a sleek and compact shell at a competitive price, as well as a single (tiny) solar panel, plus 3 USB outputs and 36 leds. To give you a hint about what 25,000mAh looks like in the real world, the GoerTeK is capable of charging an iPhone X seven times before requiring a “refill”.
- The Tech Lounge
To make the charger as functional as possible, GoerTek has added a 5V/2A adaptor. As it’s faster to charge it using the adapter, it is handy to plug it in and maximize the charge before you head off on your adventure. This is a great little feature which means its easy to ensure you’re always ready to go. Another fantastic aspect of the GoerTek Solar Charger is the number of ports it offers. With three USB ports, you can charge multiple devices at once, which makes it super handy on group trips and excursions.
- Byways
Three USB ports are probably the best feature of this solar phone charger, which are powerful enough to charge three phones simultaneously. Your friends and family members can also charge their phones conveniently. There are two charging methods for this solar phone charger. You can use the 5V/2A adapter or solar. This USB power bank also hooks in 36LED lights to see outdoors when it is dark. The package comes with an included USB cable, carabiner, and a user guide manual to help you use the product seamlessly. The product weighs only 1.18 pounds, so it is much easier to carry from place to place.
- Portable Beasts
There are two charging systems incorporated in this power bank as indicated by the pilot lights. When using the 5V/2A adapter for charging, a blue light comes on while a green one indicates solar panel charging. Since it is made from ABS material, this power bank is eco-friendly while maintaining its stylish premium design and finishing. For your illumination needs, this electronic device comes with 36 built-in LEDs ideal for outdoor darkness.
- Buy The Best 10
What experts didn't like
GoerTek does warn it takes a very long time to charge via the solar panel.
- Earth Techling
Kind of heavy at 1.2 pounds.
- The Tech Lounge
The battery may not charge fully under direct sunlight.
- Portable Beasts
Lacks protective cover for the LED panel.
- Buy The Best 10

From The Manufacturer

25000mAh Ultra High Capacity Solar Charger】The solar panel charger built-in 25000mAh Li-polymer battery, it’s enough to charge an iPhone XS for 7.4 times, a Galaxy S9 Plus for 5.7 times, an iPad Pro for 1.6 times!【Two Charging Methods】The Solar charger powerd by 5V/2A adapter(Not included) or solar. The blue indicator light is on when charging with the adapter, and the green indicator light is on when charging with solar panel.【3-USB Ports for Charger】The solar charging powerbank has three USB ports that can charge three devices at the same time, which is convenient for yourself and your friends.【ABS Material with 36 LEDs】The USB power bank used ABS environmentally friendly material, stylish and decent. Built-in 36 LED lights with powerful lighting function,this Solar phone charger is the best choice for outdoor enthusiasts.【What you get】Except our high capacity 25000mAh solar power bank, there are 1* Carabiner, 1* USB Cable and 1* Manual coming together, it is a great companion for outdoor sports!

An Overview On Solar Window Chargers

Did you know that Albert Einstein published a paper in 1905 that helped spread awareness about the power of solar energy? Today, the benefits of switching to solar power are well known. In addition to using solar energy at home via solar panels on the roof, people can purchase portable solar window chargers to take on the go.

As you browse the available models, you want to take into consideration the number of people you have in your family. Many solar window chargers are only designed to charge one or two devices at a time. If you opt for a model like the GoerTek 25000mAh Portable Solar Window Charger, you’ll be able to charge three devices simultaneously. That’s a better choice for larger families. Of course, families can also purchase more than one solar charger if need be.

If you plan on using the solar window charger for an outdoor trip, you need to choose a model that is weather-resistant. The Hiluckey 25000mAh Outdoor Solar Window Charger, 4-Panel is not only waterproof but also dust and shockproof. It folds up and has a durable outer cover that protects the solar panels from becoming damaged when dropped.

Another important feature to look for when shopping for a solar window charger is how quickly the device charges. For example, the Anker 21W Portable Solar Window Charger, 4-Panel has the technology to charge at a speed of up to 2.4 amps when plugged into a port or 3 amps when placed in the path of direct sunlight. Some models also have a built-in eco-friendly li-polymer battery.

Review how easy the solar window charger is to transport. Ideally, you want a model that is lightweight and that can fit in a backpack or carry-on bag. Then check how the unit is designed to be used. Some models have suction cups so you can adhere them to a window, while others have stainless-steel eyeholes on each corner for hanging on the back of your pack.

Check to see if the solar window charger has any special features that put it above another model. The FEELLE 24000mAh Waterproof Solar Charger, 3-Panel is an excellent example of this, as it is outfitted with a flashlight function that has three modes. Users can set it on the steady mode for extra sight in the dark, strobe mode for adding to the party atmosphere or SOS mode when an emergency arises.

DWYM Fun Fact

Humans have been using sunlight as a source of energy for a long long time. We know that during the seventh century B.C., people used magnifying glasses to direct the sun’s rays and make it hot enough in one spot to start a fire. Later, mirrors were used in the same way as the magnifying glasses.

Edmond Becquerel was the first scientist to discover that light increased the amount of electricity in cells that had gold or platinum electrodes and that were submerged in a conducting solution. This discovery in 1839 paved the way for the solar panels we use today.

The first solar cell that resembles modern-day cells was constructed by Charles Fritz in 1883. His cell was made using selenium and wasn’t very strong, but others were able to improve upon his design over time. Aleksandr Stoletov is the first holder of a patent for a solar cell, which he obtained in 1888. It wasn’t long after this patent that solar power was commercialized.

In the 1950s and 60s, solar panels were used in a variety of spacecraft. President Jimmy Carter has solar panels installed on the roof of the White House in the 1970s. Today, solar panels are more affordable, making it possible for more homes across the globe to have them.

The Solar Window Charger Buying Guide

  • Keep in mind that you must have a source of light available in order to charge the solar window charger.
  • To keep your solar window charger powered, hang it from the outside of your backpack so that it can receive sunlight while you hike. If you’re camping, find a location that receives direct sunlight and lay the charger out. Should you be traveling in a car or sitting at home, you can place the solar charger in a window that’s facing the sun.
  • Solar windows chargers also work great when traveling via plane, train or bus. Outlets are not readily available on these modes of transportation, which makes the solar chargers a great solution to keeping your phones and tablets charged until you reach your intended destination.
  • When you return from hiking or camping in the woods, you’ll most likely need to clean your solar window chargers before putting them away. All you need is a little dish soap and water. Moisten a lint-free cloth with the soapy water and wipe down the front and back of the charger. Repeat with a clean cloth that has been moistened with water only to rinse away any soap. Dry with a lint-free towel afterward. It’s important that you never use a scouring pad, wool scrubber or an abrasive cleaner on the solar window chargers. These will scratch the surface of the chargers and render them less effective.
  • The price for a solar window charger varies based on construction material and special features. The FEELLE 24000mAh Waterproof Solar Charger, 3-Panel is among the most affordable, while the GoerTek 25000mAh Portable Solar Window Charger and the Hiluckey 25000mAh Outdoor Solar Window Charger, 4-Panel are both moderately priced. You’ll pay the most for the Anker 21W Portable Solar Window Charger, 4-Panel, which is quick to charge.