Introduction: USB Light for Cell Phone Portable Charger

Picture of USB Light for Cell Phone Portable Charger

Most of us have in the backpack a portable charger if your phone runs out of battery. these portable chargers have a USB connector so it can give you many applications to these sources of energy.

Step 1: Tools and Materials

Picture of Tools and Materials


  • pair of pliers
  • soldering iron


  • portable charger
  • soldering
  • LED
  • male USB cable
  • Tape

Step 2: USB Cable

Picture of USB Cable

Short rubber sheath that protects the USB port leaving only the metal part with electric cables. just let the power cables ( black and red) as shown in the picture.

Step 3: LED Connection

Picture of LED Connection

with the iron connects the USB port with LED in their respective polarities. I suggest placing a small resistance if you have any fear of accidentally melt the LED

Step 4: Sealed

Picture of Sealed

Step 5: Connecting Portable Charger

Picture of Connecting Portable Charger

As it is ready our little device you connect to the laptop charger and if all goes well the LED will illuminate and we have a USB flashlight for portable chargers

Step 6: Alternative Design

Picture of Alternative Design

is the option of using two LEDs instead of one connected in series becoming more efficient system operation .

in the picture looks like this building dating

Step 7: Thanks and Enjoy!

Picture of Thanks and Enjoy!

I want to thank everyone for viewing my post .
Thank you very much and greetings from Chile :)


3366carlos (author)2015-03-29

nice, did you use a resistor? in series?

gmuñoz1 (author)3366carlos2015-03-29

Yes, in series. If you will use a resistor, you must use a small power resistor. For example 10k or 5k

ShyG (author)gmuñoz12015-07-08

isnt that over kill i found a formula in forest mims engineering notebook to calculate resister value for leds rs=vcc-vled then divide by led i

3366carlos (author)2015-03-29

muy bueno..

gmuñoz1 (author)3366carlos2015-03-29

Gracias :)

seamster (author)2015-03-10

Hey, very nice work!

I noticed in step 4 you bounced to Spanish for a bit! :) Some people share steps with text in both English and Spanish, which is a great idea if you wanted to do that.

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