DIY Portable Charger

its a pain when your phone battery is low and you have to do some work and there is blackout then how will you charge your phone then you will use this emergency charger which will give a an extended juice for your phone with a 9v battery

so without further lets do this

Step 1: Tools Needed

7805 ic

micro usb cable

9v battery

9v battery connector

and some basic materials

this is all you needed to do this

it costs around 1 $

thats cheap it is

Step 2: Heat Up the Soldering Iron

just cut the usb in hald and connect the each wire as shown above

note before powering your phone with it just take a multi meter and check the voltage it should not excced from 5.2

otherwise your phone may be damage

Step 3: You Are Already Done

that how easy and simple it is to make a emergency charger

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