DIY : Fabriquer un chargeur de secours USB 5V. - Semageek
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Adafruit Universal USB / DC / Solar Lithium Ion/Polymer charger [bq24074] : ID 4755 : $14.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Create Your Own DIY Solar-Powered USB Charger For All Your Portable Gadgets!
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Amazon.com: Charging Module,Universal QI WPC1.1 Wireless Charging Transmitter Module Charger USB PCBA Coil Coil Wireless Charging Micro USB Port DIY : Cell Phones & Accessories
Lithium Ion Battery Charger
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DIY : Fabriquer un chargeur de secours USB 5V. - Semageek