vince1701

vince1701
 
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February, 2009

How to build a solar powered USB charger

Build a solar powered USB charger

vince1701's comment: "i wonder what the minimum amperage is... i get that the voltage needs to be around 5v but what about amperage ...more"

A 5:03
Curated 2 years ago by cwiltz | Comments 23
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