Introduction: KEY SIZE POWER BANK MADE BY OLD MOBILE BATTERY

Picture of KEY SIZE POWER BANK MADE BY OLD MOBILE BATTERY

As we know to charge any mobile we need 5V, so for that we have mobile battery of 3.7V & cell of 1.2V it will together produce 4.9V which is sufficient to charge any mobile. Therefore, here we introduce a key size power bank which can charge any mobile where ever you want.

Step 1: MATERIALS REQUIRED

Picture of MATERIALS REQUIRED

1 old battery( 3.7V)
1 AA rechargeable cell (1.2V)
connector( charger connector)
wire
switch( micro-slide switch)
lots of wire

Step 2: MAKING

Picture of MAKING

Attach a mobile battery to the rechargeable cell with the help of tape.
Now, we have to attach the wire from '+' terminal of rechargeable cell to the '-' terminal of mobile battery.
Attach the other wire with '+' terminal of mobile battery to the side terminal of the switch.
And then take the other wire & attach it from the middle terminal of switch.(it will be positive line of power bank)
Now, we will take the separate wire which will be attach from '-' terminal of rechargeable cell.( it will be negative line of power bank)

Step 3: FINALLY YOU CAN CHARGE YOUR MOBILE

Picture of FINALLY YOU CAN CHARGE YOUR MOBILE

Take the connector which will consist of two - red line ('+' line) & other line ( '-' line ) . Now , the positive line of power bank made earlier will be attached with the connector carrying positive line & negative line of power bank with negative line of connector.

Step 4: FINAL STEP

Picture of FINAL STEP

Cover the whole material with the tape. You can cover your power bank with any type of box ( either plastic or card board) to make it more attractive.
This device can charge anything which charges with 5V .
Thankyou for viewing this Instructable !! (:
If you have any type of queries regarding it. You can contact me at - grandmaster.rp@gmail.com
---×---×--RISHABH PANDEY--×--×--

Comments

Ragav Abiraj (author)2016-09-21

but how to charge it again ?

the battery and the cell?

abdul quddoosR (author)2016-01-24

very good PANDEY JI !!!!

I M Electronics Engineer.....
But I m shocked there is no comment....!!!!
Comments are not for making good. Comments are for co-operate to any person who have creative ideas.

AND!!!!

No Comments = AAJ KAL LOG KAABLIYAT KI KADAR NAHI KARTE...!!!

Its nice one experiment

Thanks

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