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Use a powerbank to charge your electrical devices without a care in the world! Laptop, tablet or smartphone, there’s a suitable powerbank for every device. This way, you’ll never run out of power.

Power wherever you are

In a world where we navigate, take photos, and communicate with our smartphones, a dead battery is the last thing you want during an outing. With a powerful power bank, you stay reachable and operational during long hikes, multi-day festivals, or long-haul flights. These external batteries are the ideal energy source for smartphones, gps systems, action cams, and even some laptops.

A power bank's capacity is expressed in mAh (milliampere-hour). The higher this number, the more often you can charge your devices. For a day trip, 5,000 to 10,000 mAh is usually enough, but for a week in the wilderness, you’ll want to bring at least 20,000 mAh. Keep in mind that the effective output is often slightly lower due to energy loss during conversion; therefore, it's better to choose a bit more capacity than you strictly need. 

For true off-grid adventurers, we offer power banks specifically built for the outdoors.

Think of models with a rubber, shockproof housing and sealable ports to protect against moisture and dirt. Solar power banks are an excellent choice for sunny destinations; they charge themselves slowly via solar energy, which is ideal if you don't encounter a power outlet for days.

FAQ – Frequently asked questions about a powerbank

Do you want to buy a powerbank to charge your electronic devices outdoors? Then pay attention to the capacity (mAh) and the output or power (W) of the powerbank. It is also important to know where and for which device you want to use the powerbank and how many products you want to charge at the same time.

  • smartphone: from 3,350 mAh
  • e-reader: from 5,000 mAh
  • tablet: from 10,000 mAh
  • laptop: from 40,000 mAh

How often and how long you need to charge a powerbank depends on its power. The amount of mAh (milliampere hour) indicates how powerful the powerbank is. The larger the mAh, the more often and the longer the powerbank can charge other devices before it is empty.


After a while, your powerbank loses some of its power. Therefore, always charge it fully and only repeat this when it is completely emptied. 

This depends on the capacity of the powerbank and the power of your smartphone. Xtorm maintains this standard:

  • 10,000 mAh: phone can be charged 4 times
  • 15,000 mAh: phone can be charged 6 times
  • 20,000 mAh: phone can be charged 8 times

To find out how many times you can charge your device with a particular powerbank, divide the power of the powerbank by the power of your device.

Choose from our many top brands

At A.S. Adventure you will find a extensive collection of powerbanks. Choose from our many top brands - such as Xtorm, Powertraveller - and find the perfect powerbank to charge your electrical devices.


Need help or advice?

Our customer service team is happy to help.


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To guarantee you the best online experience, we use marketing, analytical, and functional cookies (and similar technologies). For more detailed information, please refer to our cookie policy. Sometimes third parties place tracking cookies on our site to show you personalised adverts outside of the website. Additionally, tracking cookies are placed by social media networks. By selecting "Accept all cookies" you agree to this. In order not to have to ask you more than once, we store your preferences for the use of cookies on the website for a period of two years. You can edit your preferences at any time through the cookie policy at the bottom of every page on the website.