Altoids Smalls Solar Powered USB Charger

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About: I love crafts, technology and anything to do with inventing!

This instructable will teach you how to make your very own solar powered USB charger out of an Altoids Smalls tin. It is an eco-friendly way to conserve energy. The Solar Panel I am using for this project has a dial on it so you can chose your output number of volts, therefore I am able to use it for a wide range of electronics depending on how many volts they take to charge. Not only can you use this to charge your phones/IPods on the go, but you can also connect LEDs, fans and basically any thing that comes with a USB connector. I hope you enjoy this instructable and please remember to favorite and vote!

Step 1: Drilling the Hole

Using an 8mm drill bit drill a single hole at one end of the tin. 

Step 2: Getting the Solar Panel Ready

Next you need to connect your solar panel to two wires. In this picture the green wire is the positive wire and the white wire is the negative wire.

Step 3: Before Attaching the Solar Panel

Before attaching the solar panel to the outside of the tin, place some electrical tape on the surface where you are going to stick down the solar panel. This will prevent the circuit from shorting out.

Step 4: Glue Down the Solar Panel

Next, glue down the solar panel on top of the square of electrical tape.

Step 5: The Wires

Take the wires attached to the solar panel and pull them through the hole you drilled.

Step 6: Completing the Circuit

Next, solder your USB entrance port and the wires from the solar panel together in the correct manner. I am not going to go into too much depth with this step because lots of the USB entrance ports are different and the wires need to be soldered on differently.

Step 7: Cutting the Opening

Using a Dremel or another rotary tool, cut out an opening in the side where your USB entrance port will go. In order for the charger to function when closed you will need to cut out your opening very low.

Step 8: Putting USB Entrance Port in Place

The next step is to glue the USB entrance port in place. I used hot glue and it stayed firmly in place, although in the photo it looks a little messy. After, I did clean it up using adhesive remover around the edges as to not interfere with the rest of the project.

Step 9: Finished

There you have it! Your very own, eco-friendly, solar powered USB charger! 

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    28 Discussions

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    bird123457

    5 years ago on Introduction

    If you liked this instructable please remember to vote for me in the green design contest!!

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    millerman4487out-of-the-box

    Reply 2 years ago

    by my calculations, a 1 square inch solar panel produces about 0.55 volts and 0.66 amps.

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    mbalentović

    4 years ago

    This is not even wrong!

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    linuxman12

    5 years ago on Introduction

    Hi,
    my Solar Panel have a max 6.6 out voltage when the sun is strong.
    Is safe for my phone, or i have risk of burn ?

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    stilcrazychris

    5 years ago on Step 9

    This is not a very good instructions if I don't know what to solder the USB entrance port and the wires from the solar panel together in the correct manner. Should give a part # from radio shack or something. It would of been a great Instryctable if u had done that.

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    stilcrazychris

    5 years ago on Step 6

    This is not a very good instructions if I don't know what to solder the USB entrance port and the wires from the solar panel together in the correct manner. Should give a part # from radio shack or something.

    What kind of output does your solar cell put out? For such a small cell, it seems to me that it would take weeks to charge up a phone. (I'm guessing thats 6V at 80mA based on size.)

    I'm also guessing that you're having problem problems getting this thing to work with iPhones 4S, 4, and 3GS models. You need to provide power to the data tabs of the USB port in order to get them to work.

    Anyways, any chance you can throw up some photos of your setup in action?

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    eorecchia

    5 years ago on Introduction

    great idea - brilliant execution - keep them coming Bird

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    eorecchia

    5 years ago on Step 2

    Great idea nd brilliant execution - keep them coming Bird

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    phwphw

    5 years ago on Step 9

    Outstanding work Elizabeth! I'd like to make one of these with you on Martha' s Vineyard this summer. Let's bring all the parts and do this! Hopefully there will be a lot of sun there in August! Again, nice work -- I definitely voted for you! Uncle Peter (in New Canaan)

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    robo10302

    5 years ago on Introduction

    hey!i luv ur project and am looking forward to make it.but can u please tell me where u brought the usb port?..thanks in advance

    1 reply
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    holidayv

    5 years ago

    what is the power output of the solar panel? One that small cannot put out much even with direct sunlight. What about a blocking diode to prevent the panel from discharging your device in the event of cloud cover?