Smartphone power supply

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Five mini power banks compared: Which one charges the fastest?

Lorenz Keller
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More Qi, more watts: These are the new magnetic power banks from Digitec

Martin Jungfer
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Small but mighty – I carry this powerbank everywhere

Lorenz Keller
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Without these things, I might not have been able to complete my first trail run of over 50 kilometres

Siri Schubert
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