Card Size Phone Charger & Flashlight

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About: My name is marjancho and I love electronics,makeing gadgets,hack and pranks.

Intro: Card Size Phone Charger & Flashlight

Pocket charger that charge your phone and also has a two led flashlight.
The charger works with two lithium batteries CR2032 conected both of them
in serial so we get 6 volts and that its enough voltage to charge your phone.

Step 1: Materials

What you will need to make this pocket size phone charger.
1.Plastic piece
2.two lithium battery CR2032
3.two white leds
4.three pieces of metal
5.Switch
6.One usb micro plug

Step 2: Build It

Cut the all the pieces for the componets.The plastic is very handy for work and easy.
With cutter you will need to make channels in which to put the wires.
Look the image below too see how are made.

Step 3: Finish Product

Step 4:

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    5 Discussions

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    rohithv5

    1 year ago

    Do we get rechargeable CR2032.batteries....?

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    Gomi no Sensei

    2 years ago

    Most smart phone batteries are 1500-3300mah.

    A 3V battery has 50-70mah and at 500mw load has >30mah capacity.

    Just exactly HOW much does this remaining >30mah charge your phone ???

    This is cute but utterly pointless, it's like using a tortoise to tow a bus.

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    ironsmiter

    5 years ago on Introduction

    that's great... so you charge your led throwie with that?

    seriously neat design, but lacking somewhat in practicality.
    now, replacing the button cells with a slim li-po battery, and step-up IC... you could probably get a solid 911 phonecall in with the emergency charge. or actually get a fair bit of juice into your mp3 player.

    Besides being a neat party trick to say "watch this, it's charging my cell phone, see the charging icon?" ; what is the purpose behind the design? What purpose did you design this for?

    1 reply
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    macobtironsmiter

    Reply 5 years ago on Introduction

    Thanks for write to me.
    With this lithium battery you can charge the phone about 5minutes,I will replace them with rechargeable batteries CR2032.
    I am electronic desigher and i love to experiment and build it stuff.
    Regards macobt