DIY 9v Usb Ipod, Cellphone, Mp3 Portable Charger! Very EASY!

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Introduction: DIY 9v Usb Ipod, Cellphone, Mp3 Portable Charger! Very EASY!




Have you haver need energy for charging your mp3, cellphone, etc. when you're out of home?!
I had.. So i decide to describe how to build your portable charger.
I hope to be useful.

SORRY FOR MY ENGLISH, I'M ITALIAN!

Step 1: What You Need

WHAT YOU NEED:

- 5v regulator (i used a 7805)
- Small piece of velcro
- USB female port
- 9v battery
- 9v battery attach
- A box (i used an old burned modem)
- Hot glue (optionally)
- A solder

Step 2: The 5v Regulator Scheme

This is the simplyest scheme you probably have ever seen..

Watch the image, put the regulator at the same rotation of the image.

- On the first on the left you have to sold the RED 9v cable
- On the center sold the BLACK 9v cable

- On the first on the right you have to sold the RED usb cable
- Screw togheter the WHITE, BLACK and GREEN cable of the usb on the center (take the distance from the other one)

Step 3: Should Be Like This..

Should be like this..

Step 4: Time to Finish It..

So, now we have to fix it all on our box..

I put a little piece of velcro under the battery and under the 5v regulator, hot glue under the usb port and then i closed the box..

Et voilà.. This is the final result..

Step 5: Does It Works?!

Time to see if all works correctly..

Attach the cable on the usb port, the other side on the phone, and...

..magically.. IT WORKS!!

Happy recharging with your easy-build 9v battery portable recharger..

P.S. if you can use rechargable 9v battery.. you save money and save the world!

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    56 Comments

    Its fairly simple to incorporate one yourself just cut positive lead in half, attach one wire to one pole of switch and other half to other pole and voila! IMO its unessesary though essentially the charger is "off" once its unplugged from your device.

    Well making one with a switch is really simple you see. Take a switch. It has three prongs on it for soldering to. You only need to on either side (this side will be the on side, the other off.) now where the connecter for the 9v battery is you will use the red wire. Cut it and trim the plasticy/rubbery coating off to reveal the wire. Now connect it like this: [URL=http://img29.imageshack.us/i/helprf.png/][IMG]http://img29.imageshack.us/img29/7741/helprf.png[/IMG][/URL]

    Of course you can, you just cut 1 wire in half and connect it with the correct positive and negative on it's side

    I'm italian too!!! I have a question...i have to build a charger like this one but i must to charge a mp3 and it's 3.7v do i need a different regulator? if the answer is yes which one? thanks

    4 replies

    Yes you would need one that regulates to 3.7v's.. You could use an lm317t it is a variable voltage regulator you set it to the voltage you need!

    i forgot... where can i find a female usb port without break my pc? thank you again

    you can buy a usb extension cable and cut it off. http://usbextensioncable.com/

    Try an electronics store for the female usb plug, and for an adjustable voltage regulator.

    L7805, thats a basic 5Volt regulator, the last to digits after " L78 " shows the output value

    how many times we can charge our cell phone if its 2600mh

    is it easy to use 4 rayovac rechargeable aa batteries instead of a 9v. if so how do i make it work. and does it use the same parts. if not please tell me so i can get them. thanks

    hi sir i do this but its work very very slow plz tell me what i do

    My device is showing the charging light but the status says not charging everything is hooked up correctly.

    will this work for samsung galaxy devices which require 5v to charge.

    I believe a 9 volt battery is just a case with 6 - 1.5 volt AAA batteries inside it. Why not just make your own case with the correct number of batteries in it?