7 Best portable power banks You Must Try
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The usage of the smartphone is increasing day by day, and the built-in mobile battery is not enough for your daily tasks.
Here is a power bank that comes to help you. It is used to charge your battery-powered devices like mobile phones and other gadgets with USB interfaces. 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 up 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 the seven best portable power banks that change how you charge your devices.