DIY Solar USB Charger
When you are outdoors, what if your mobile phone or MP3 just needs to be charged? Come to make a solar charger, no matter where you are, the sun will always rise.
Step 1 Materials preparation
For solar panels, I used 2 pieces (3V).
5V pressure regulator
USB female connector
Electric soldering iron
Epoxy or hot melt
After the components are ready, you need to check the front and back side of the USB cable and pressure regulator. The regulator guarantees an output of 5V.
I need to make 5 to 6V to charge my phone.
Step 2 Solar panel in series
Usually the computer can output 5.5V to charge the phone or mp3. All I connected two 3V solar panels in series to get 6V.
Step 3 Soldering other components
The positive line of the solar panel is connected to the LEFT pin of the regulator.
The negative terminal of the panel is connected to the pin in the middle of the regulator and connected to the right pin of the USB connector.
Then connect the remaining leg of the regulator to the other side of the USB connector. The middle two pins of the USB are not used.
Step 4 Stick
I used hot melt glue to connect these parts together.
Step 5 Completed
After the DIY charger is completed, I use it to charge my HTC phone. Because it was at night, I used the desk lamp to shine on this solar charger.
You can also improve this charger to make it more beautiful and portable.
Translated By: Utsource