DIY Solar Projects Part 4: Solar Phone Charger in an Altoids Tin - Off Grid World Skip to Content

DIY Solar Projects Part 4: Solar Phone Charger in an Altoids Tin

DIY Solar Projects Part 4: Solar Phone Charger in an Altoids Tin

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This awesome pocket-sized solar USB charger with battery backup can be used to charge cell phones, iPods, or anything else that can be plugged in via USB. 

It is built into an Altoids tin, so it is the perfect portable size and a great low-cost alternative to store-bought versions of similar chargers.

DIY-solar-phone-charger

This particular charger uses a rechargeable 9-volt battery, so will require at least a 9-volt solar panel, which can be purchased online for about $10.

The schematic below was created by bluepapercanoe (video below) to simplify the process of building this. 

DIY-solar-phone-charger2

Solar USB charger schematic, via bluepapercanoe

Here is a full tutorial on how to make this clever little charger using inexpensive materials. 

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