Charmast 10400mAh Power Bank review - Which?

The Charmast W1059 10,400mAh is a medium-sized power bank that claims to provide 2.3 full charges for an iPhone 11. It has so-called ‘Smart E 3.0’ charging technology, but we put it through our power banks test programme to separate the marketing from the facts. Read our expert review to see how this power bank stacks us against rivals.

Charmast Portable Charger, USB C Battery Pack, 3A Fast Charging 10400mAh Power Bank LED Display, Slim Portable Phone Battery Charger for iPhone 13 12 11 X 8 7 Samsung S21 S20

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Portable Charger, USB C Power Bank, 3A Fast Charging 10400mAh Battery Pack LED Display, Slim Portable Phone Battery Charger for iPhone 13 12 11 X 8 7 Samsung S22 Google LG iPad Blue

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