Here is the best affordable external battery in our comparison
With a 10,400 mAh battery, Charmast intends to offer you more autonomy on your portable devices, particularly smartphones. But with actual capacity falling short of what it claims, the 10400 mAh Power Bank doesn't do as much as promised.
Points forts
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Quite sober.
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4 ports USB.
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Average charging power.
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Digital display of remaining capacity.
Weak points
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Rather slow charging.
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Micro-USB a little dated.
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Despite a real capacity very different from that announced, the 10400 mAh Power Bank battery from Charmast should not be completely banned. It offers a good boost to your smartphones, and quite quickly thanks to its USB-C port capable of delivering 18 W of power. Too bad it's not a speed champion when it comes to refueling .
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