Mi Power Bank 3i 20000mAh Review: From A Real User

Mi has launched a 20,000mAh power bank with Type-C input and Micro USB input. 

The company has launched the Mi 3i high-capacity power bank in three colors namely, Black, Blue, and Red.

Mi Power Bank 3i 20000mAh Full Review

Key Features:

  • 20000mAh Lithium Polymer battery
  • 18W Fast Charging
  • Triple port output
  • Advanced 12 Layer chip protection
  • Dual input port


  • 18W fast charging
  • Dual input ports
  • Low charging mode


  • Little bit heavy

Mi Power Bank 3i 20000mAh Review With Features

The Mi 3i Power Bank has triple ports, so you can now charge three devices simultaneously with 18W quick charging.

The best part about this power bank is that it allows the user to charge it using any Type-C or Micro USB cable they might have. So, no one will ever have to worry about which cable is available when they’re on the go.

If you’re traveling on a vacation or for some professional purpose in which you think it might be necessary to have a portable power bank with high power capacity, then it is ideal to bring one large-size power bank with you.

In such a scenario, the Mi power bank 3i will satisfy your needs and requirements the most.

Moreover, if you are searching for any other alternatives, you can view our list of best power banks in india.


Lithium polymer batteries are designed with a built-in resistance-capacitance sensor that improves charging conversion rates as well as stabilizes discharging voltage during use.

To safely charge a low-power device like a boat air horn, you can simply shift the power bank to a low power mode. Double press the power button to enter a 2-hour low charging mode for the devices that needs low power to charge itself.


Mi power bank 3i has 12 layers of circuit protection technology. 

This one-of-a-kind power bank comes with lithium polymer batteries that are claimed to be safer, and automatically shuts itself off once the battery is fully charged.


Mi 3i 20000mAh power bank has a 20000mAh battery capacity and a full charge takes almost 7 hours. 

However, there is another option named Mi 3i 10000mAh power bank that has 10000mAh battery capacity and takes only four hours to fully charge.


The power bank comes with dual input and output ports, USB Type-A input ports, a Micro-USB output port and a USB Type-C output port.


Overall the Mi power bank 3i 20000mAh power bank is a very reasonable choice as it has all the necessary features of a good portable. 

We would recommend this one as it’s quite reasonably priced and it should meet your needs very well. 

So that’s it for today, my friend.

We hope you like our review and if you do, feel free to share it with anyone else who might benefit.

Also, if you have any other queries or are in need of a suggestion then please leave a comment below. We will get back to you as soon as possible!

Thank you. Have a nice day!

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