Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger [bq24074] : ID 4755 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
How to make a 5V Foldable Solar Panel Phone Charger | DIY Charging on the go - YouTube
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Amazon.com: Kitables DIY USB Solar Panel Portable Charger Kit | Build Your Own Portable Phone Charger for iPhone, iPad, and Android | Perfect for STEM Curriculum,Wood,kit-Solar-Charger : Cell Phones & Accessories
DIY Solar Projects Part 4: Solar Phone Charger in an Altoids Tin - Off Grid World
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DIY USB Solar Charger // Simple 5V USB charger - YouTube
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Amazon.com: Kitables DIY USB Solar Panel Portable Charger Kit | Build Your Own Portable Phone Charger for iPhone, iPad, and Android | Perfect for STEM Curriculum,Wood,kit-Solar-Charger : Cell Phones & Accessories