Tranmix 25000mAh Portable Solar Window Charger, 4-Panel

Last updated date: May 4, 2020

DWYM Score

8.9

Tranmix 25000mAh Portable Solar Window Charger, 4-Panel

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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.

Update as July 2, 2020:
Checkout The Best Solar Window Charger for a detailed review of all the top solar window chargers.

Overall Take


In our analysis of 61 expert reviews, the Tranmix 25000mAh Portable Solar Window Charger, 4-Panel placed 7th when we looked at the top 10 products in the category. For the full ranking, see below.

From The Manufacturer

4 Solar Panels & 25000mAh: It has 4 ultra-large foldable solar panels, and its max power in the sun can reach 6W / 1.2A. It is compact enough to fit into any camping/hiking backpack or emergency kit. 25000mAh Colossal Capacity: Built in high-quality lithium polymer battery and multiple protection systems, it is compatible with iPhone, Samsung Galaxy and tablet, and can charge most smartphones over 10 times.High Speed Charging: Controlled by intelligent IC chip to avoid overload, over-discharge, over-current and short-circuit. You can charge 2 devices simultaneously. A 2000mAh phone can be fully charged in 1-1.5 hours and a 5000mAh tablet is about 2.5 to 3 hours. IP65 Waterproof: Built in super bright LED emergency light and waterproof, dustproof and shockproof construction. The USB port has a waterproof cover, which can prevent it from dust or water. What's Included: The package includes a solar charger, an user manual and a Micro USB cable. A good partner for your trip.

Expert Reviews

User Summarized Score

9.2
136 user reviews

What experts liked

Affordable. This product is specially designed for use outdoors, featuring remarkably bright lights for use during an emergency. This charger is also dustproof, waterproof, and shockproof to make it perfect for withstanding harsh outdoor elements. It can serve you effectively for over five years.
- Portable Beasts
A 24000mAh capacity allows you to store enough power to charge your phone several times or your tablet a couple of times. You can even charge a MacBook Pro if you need to take your computer with you when heading out into nature. The USB-C port works as both an input and output so you can use it to charge the device in as little as 7 hours.
- Circuits at Home
The construction of this solar power bank has been made for the outdoors. In other words, it has a strong shock-resistant case that protects the battery and the solar panels from any damage, as well as emergency lights and waterproof protection that can last over 5 years with excellent performance. Super-bright LEDs have been built-in to act as an emergency light source with steady, SOS and strobe modes of operation.
- Solar Hub Energy
Transmix offers four foldable solar panels with 6W high power to charge your iPhone. Additionally, this power bank can charge your iPhone, and simultaneously, your solar bank charges itself. Moreover, it can charge two devices side-by-side with a super 2.0A high-speed charging.
- iGeeks Blog

What experts didn't like

Could include more USB ports.
- Portable Beasts
Only two USB ports.
- iGeeks Blog

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.

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.