How to Make a Portable and Rechargeable USB Charger: 12 Steps
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How to Make a DIY Battery-Powered USB Charger « Null Byte :: WonderHowTo
DIY - Mobile USB Charger : 5 Steps (with Pictures) - Instructables
Simple USB DIY Li-ion battery charger circuit update – Dangerous Prototypes
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![USB LiIon/LiPoly charger [v1.2] : ID 259 : $12.50 : Adafruit Industries, Unique & fun DIY electronics and kits](https://cdn-shop.adafruit.com/970x728/259-03.jpg "USB LiIon/LiPoly charger [v1.2] : ID 259 : $12.50 : Adafruit Industries, Unique & fun DIY electronics and kits")
USB LiIon/LiPoly charger [v1.2] : ID 259 : $12.50 : Adafruit Industries, Unique & fun DIY electronics and kits
DIY Battery Charging Circuit based on BQ24295 - Daumemo
How to Make a DIY Battery-Powered USB Charger « Null Byte :: WonderHowTo
