Instructables
Picture of Solar Powered Raspberry Pi
What i'm going to show you today is how to run your raspberry pi off the sun using solar power & Battery.




 
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Step 1: What You need

Picture of What You need
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Step 2: Connecting the Battery

Picture of Connecting the Battery
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First off we need to connect the wire to car power adapter then to the battery.

The battery is a 12V 1.3 ampHour battery The length of time the battery last very much depends on what you are doing with.

But here is quick calculation

If the raspberry pi uses 3 watts a hour then a 12v battery at 1.3 amp hours gives 15.6 watt hours

So 15.6 divide by 3 gives you 5.3 hours.

So the battery should last about 5 hours

If you want it to last long get a bigger batter or wire two up in parallel

Step 3: Connecting USB

Picture of Connecting USB
Next we need to plug in the usb power adapter.

I know it possible to make a power adapter from a 12v Battery to USB connection however this way is easier and almost as cheap.

If you would like to make your own adapter search on instructables

Step 4: Connect the Solar panel

Picture of Connect the Solar panel
Connect the solar panel to the battery and point it at the sun. 

And now all thats left to do is power up the pi
mikered114 days ago

If you used a model A, the power would last naerly 3x as long.

AlbericoS2 months ago

hey there is was just wondering if you could run the rpi using this solar panel continously, and if you touched the metal crocodile clips would you get electrocuted?

patnovak5 months ago

great job

this is fantastic. grate job
sahmeepee1 year ago
I think you can get the same solar panel for quite a lot less on Amazon if anyone's looking to make this. It's £30 at Maplin, but only £23 with free delivery at Amazon UK.
tjlm2 years ago
Does the solar panel have a built in charge controller or are you connecting it directly.
koff1979 (author)  tjlm2 years ago
I believe the solar panel has a build in charger controller.
awesome! I just got two of these in the mail, I'm excited to start messing around with them!