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DIY kinetic energy wrist charger: Build a wearable power bank that charges as you move!
Discover how to create a wearable kinetic energy power bank in this hands-on DIY electronics project. Follow step-by-step ...
The Sharge Retractable 3-in-1 is a stylish and good-looking power bank, and that beauty is more than skin deep thanks to the way it keeps itself charged.
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