Power banks with the best capacity: performance monsters from the CHIP laboratory


Some power banks shine with features such as wireless charging, an enormous output power, quick charge or a flashlight. These are undoubtedly nice extras. But they are of little use when it really matters – and you want or have to fill the smartphone or tablet with a charge as often as possible.

In order to find out how much power is in the power bank, a manufacturer’s specification can be a first indication: the total capacity of a power bank is usually given as “mAh”, around 30,000 mAh. For comparison: the Samsung Galaxy S22 has a battery that is 3,700 mAh, the iPhone 14 3,279 mAh. You can roughly calculate how often you can fill your smartphone from 0 to 100 percent with a power bank charge.

However, the manufacturer’s specifications are really only a very rough guideline. In reality, the values ​​often deviate, as our tests show regularly. The Sweye Powerbank, for example, is advertised by the manufacturer with a capacity of 26,800 mAh, but the powerbank actually only has 11,476 mAh. So the deviation is a whopping 15,324 mAh.

In the following table, we therefore show you three power banks from our test that have the highest measured capacity of all models tested.

If not only the total capacity is important to you, but you also expect certain features from a power bank, such as wireless charging, you should also take a look at our extensive purchase advice. Below we also show you the 15 best power banks sorted by overall rating.



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