7 Best portable power banks You Must Try
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The usage of the smartphone is increasing day by day, built-in mobile battery not enough for your daily tasks.
Here is a power bank come to help you, it used to charge your battery-powered devices like mobile phones and other gadgets that have a USB interface.
All power banks use rechargeable batteries based on lithium technology.
Lithium-Ion and Lithium-Polymer batteries are most commonly used for power banks but don’t be surprised if someone comes with unique ideas to charge your smartphones and other devices.
Battery technology is key to many new developments: everything from mobile phones to electric vehicles, and as a result, it is quite likely there will be some spin-offs into power banks.
Here are a 7 Best portable power banks that change the way to charge your devices.