Redmi 3S

[Other] What are Power Banks? How do they work?

2017-09-02 06:24:14
2328 21
Hi Mi Fans,
In the today’s world we all own Smartphones. We pamper them,take care of them, love them and obviously use them. But at times when our very loved smartphones are about to die on their batteries and there is no othersource to charge up the device, these portable gadgets come to the rescue andwe call them Power banks.

What are power banks?
A power bank is compact/portable device which can be used to charge our mobile phones, laptops, smart watches and lot more. Power banks can come in different capacities, sizes and dimensions but all of them serve the same purpose of providing us with an electrical source to charge up our devices when there is no other source is available.

The history of power banks!
The idea of power bankstarted when a student packed in a few AA batteries with a control circuit andput it in a box which was able to charge cell phones and pagers. This historic discovery took place back in 2001 where the student presented his work in the International Consumer Electronics Show, 2001, Las Vegas, Nevada, USA. This marked the birth of the power banks which we use in a day to day basis.

What basically is the concept here?
Basically, a power bank is constructed by combining lithium-ion cells of some defined capacity with a controlle rcircuit which controls the output and the input current of the power bank. Finally,the entire engineering is packed in a highly durable container along with some battery level indicators, charge level indicators, power switch etc.

Source of diagram: Quora

How do the power banks work?
When a power bank is connected to a device having a lower input voltage than itself the power bankstarts charging the device. Power banks come with different capacities and different output ratings. The more the capacity more will be the number ofdevices it will be able to charge. The more will be the output rating the faster it will be able to charge up the devices considering the devices support the amount of input voltage given out by the power bank.

Power banks have proved to be a really necessary gadget for us. They can save you hours from charging up your device at home when you need to go to work or school or college. Power banks enable us to charge up our devuces on the go. Thanks to the student who discovered this wonderful gadget for which we are now able to save our much time and efforts to keep our devices powered up.

What do you think about Power banks? What would make you buy an Mi power bank?
Let us know in the comments.


Number of participants 1 Experience +5 Pack Reason

View Rating Log

2017-09-02 06:24:14
Favorites2 RateRate

Semi Pro Bunny

p.p@... | from app


the name implies.. that it is combination of cell or batter that connected in parallel   fro goot batter backups   
2017-09-02 11:18:35

Pro Bunny

Shabbir Abdul | from app


good information
2017-09-02 12:40:45

Grandmaster Bunny

Ashoks | from Redmi 3S


thanks for sharing information
2017-09-02 18:21:27

Grandmaster Bunny

Prem | from Redmi Note 4


Good informative and useful information thanks for sharing this with us
2017-09-02 19:04:20

Master Bunny

Mynampati | from Redmi Note 4


Colour full power bank
2017-09-03 08:54:21

Pro Bunny

SanjayRaj1222 | from Redmi 4


thanks for sharing
2017-09-03 10:06:02

Master Bunny

Yazdani | from Redmi Note 4


thanks for letting us know
2017-09-03 12:12:36

Techie Team

meetgour | from Redmi 3S


thanks ... nice information.
2017-09-04 10:22:18

Semi Pro Bunny

syedriyan_lucky | from Redmi Note 3


Nice info
2017-09-11 11:06:39

Advanced Bunny

1634006818 | from Redmi 3S


thanks for the article
2017-09-11 19:42:27
please sign in to reply.
Sign In Sign Up

Apurva Das

Master Bunny

  • Followers


  • Threads


  • Replies


  • Points


Beta Tester
3أيام على التوالي
٧ أيام على التوالي
٢١ يوم على التوالي
500K Members
Mi Explorers
App Review
Aug-100 replies in a month
Nov-100 replies in a month
Poster của tôi
Newbie Member
250 000 пользователей
Black Friday
Device Team Member
10k Members
2017 Xiaomi Annual Bill

Read moreGet new
Copyright©2016-2018 Xiaomi.com, All Rights Reserved
Content Policy
Quick Reply To Top Return to the list