Solar charger comparison 2018

Purchase advice for the solar charger comparison or test 2018

  • A solar charger equips mobile devices such as smartphones or tablets with new power. But this uses the power of the sun's rays - so can be dispensed with a power outlet and the charger is mobile.
  • Do not confuse solar chargers with solar power banks: while chargers direct the power directly to the terminal, solar power banks can also store the power.
  • Of particular importance for the efficiency of mobile chargers is the size of the solar panels on which the solar cells are located.

Solar charger comparison 2018: solar

Not only in the case of large technical devices, but also in the field of mobile devices, the idea of ​​the energy turnaround is noticeable: more and more attention is being paid to energy-saving measures in this area as well. Therefore, the idea is not far away to make use of the power of the sun not only for hot water, but also to supply devices in a small style with electricity.

In our 2018 solar charger comparison, we'll explain how these battery chargers work and which categories to watch out for when buying a solar charger.

  • to the battery charger comparison
  • to the car battery charger comparison

1. Load long - but environmentally friendly:
Solar chargers need their time

Solar charger comparison 2018: 2018

When hiking the battery charge: This is done by solar panel.

The solar chargers are mobile chargers that do not need to be connected to a power outlet to charge the terminal. Because solar panels on the surface convert the sun's incoming energy into electricity.

Especially for outdoor fans and campers, the Charger are high in the price, because the battery level of the cell phone or other USB device no longer depends on the proximity of a power outlet. Theoretically, other electronic devices can also be charged via adapter through the solar battery. Starting at 20 euros there are cheap solar chargers to buy on the go.


Simple, compact solar chargers only have a relatively small solar panel surface, so the iPhone, iPad & Co are supplied with energy only very slowly. Mostly need several hours or even days be included for the store.

In contrast, a large, foldable charger, cell phone batteries, and small USB devices can fully recharge within four hours - of course, depending on how strong the sun's rays are.

How does a solar cell work?

Several solar cells are combined to form a solar panel. Meeting sunbeams on the solar cells, will be one chemical process that shifts the electrons contained in the cells, And electricity is in principle nothing else, namely: moving particles.

For a detailed and clear explanation of how a solar cell uses the power of the sun for energy, we recommend the following video:

It can be concluded:
The size of the solar power banks is the same as with the chargers.The larger the area with the solar panel, the more solar energy the solar battery can absorb.

In the following we have compared the advantages and disadvantages of chargers with solar panels:

  • Charging the cellphone without socket possible
  • Save energy by using the sun's rays
  • environmentally friendly
  • well suited for traveling and in the wilderness
  • only work in sunlight
  • are not enough for loading laptops

2. Which solar charger types are there?

In industrial use, there are three different types of solar cells: so-called mono- and polycrystalline solar cells and thin-film cells. For solar chargers, however, only monocrystalline solar panels are usually used, The bigger difference in the models lies in the handling and storage possibility of electricity.

simple solar chargerfoldable solar chargerSolar Power Bank

Solar charger comparison 2018: charger

Solar charger comparison 2018: 2018

Solar charger comparison 2018: charger

small, compact design

often also water and dust repellent

does not store the electricity in reserve

can generate more electricity faster

many mounting options

a bit unwieldy (when folded, the panels are about the size of a DIN A-4 sheet and about 2-3 cm thick)

stores the electricity for short times

should be charged at home, as the solar function only shortens the discharge process

3. Purchasing advice: Pay particular attention to the capacity and performance of the solar charger

3.1. Capacity and performance

If you would like to have a spare battery for your iPad even on dull days, you should buy a solar power bank with an integrated battery that stores the generated electricity. Where: The higher the capacity, the longer your smartphone will last.

It is recommended to buy a power bank with twice the capacity of your mobile or tablet battery. This allows you to fully charge your device twice, provided, of course, that the power bank is fully charged.

Solar charger comparison 2018: power

Rain can not harm waterproof chargers.

A small example: An iPhone 6 has approximately a battery capacity of 1,810 mAh and can thus be charged by a power bank with 10,000 mAh about 4-5 times.

Chargers with solar panel can normally feed the connected USB devices with 5 volts, Thus, mobile phones, tablets or cameras can be powered - laptops, however, not. These require USB power banks that can handle 12 volts or more.

3.2. Number and type of USB ports

The solar chargers can be connected to the mobile devices via USB connection. Most solar panels have two USB slots: a powerful and a slightly weaker one.

But attention: Charging two USB devices at the same time takes longer to load.

In addition to the number you should also check the type of USB slot: You may need an adapter if the ports of your smartphone or camera do not match the USB standard of the panel.

If you do not have a USB cable as an accessory with the best solar charger for you, you can easily connect it to your mobile phone as well. So every solar battery is smartphone compatible.

3.3. height and weight

Solar charger comparison 2018: power

Foldable solar panels are also easy to set up.

The majority of solar power banks and cell phone chargers fit in your pocket and loosely fit into a backpack. Powerbanks are about the size of a smartphone, but about twice as thick. Normal chargers are usually smaller and more compact.

Only the foldable models are bigger: Packed in the bag they take up as much space as a thick A4 booklet, Although folded, they also fit in the backpack - when unfolded, they can be around 70 x 30 cm in size.

But no matter which version you prefer, a solar charger for your phone has just like a solar power bank its own weight, which you should plan before your trip or trip into the wilderness. Some on-the-go chargers come to over 700 grams.

3.4. attachment

Solar charger comparison 2018: comparison

Some models can be attached to the backpack.

If you have z. For example, if you're looking for a solar charger for your phone or iPad to go hiking or engage in other outdoor activities, you should continue to pay attention to how you can attach the panel.

Foldable solar chargers are often provided with loops or snap hooksso they can be recharged to the tent, between the trees or on the backpack. Especially when cycling or hiking, this proves to be useful if the smartphone or other USB devices are powered from the backpack during the tour.

Extra-large, rugged USB solar chargers are equipped with sturdy eyelets to prevent the straps from tearing out and to provide sufficient stability when mounting (for example, on the car roof).

Solar charger comparison 2018: charger

What does Stiftung Warentest say?

So far, the institute does not have a solar charger test and therefore no winner of a solar charger test. You will find a power bank test in the May 2016 issue. As soon as a solar charger test is published, we report here.

In addition, the foundation draws attention in a special note that from 2017 a law applies in Germany, which the Manufacture of uniform chargers for mobile phones. The manufacturers and all brands must therefore use a common standard - and the American company Apple must adhere to it.

5. cell phones with solar cells have not prevailed

Although there were indeed some years ago approaches to equip cell phones and smartphones with solar cells, but so far it is not worthwhile.

Because as you can see in our solar charger comparison, it takes a lot of space and a large number of solar panels to generate enough power to charge a device. Just the back of a cell phone would not be enoughto fully charge a battery in a few hours. Therefore, it is only approximately satisfactorily possible to supply mobile terminals with juice independently of an external source by means of solar cells.

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Video Board: Everything you need to know on Solar Chargers (With iphone charge test in bright and low light)