for my project I would like a 2s battery pack usb charged. is it possible?

claustro

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Jan 4, 2008
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Hi guys.
I made this https://www.instructables.com/id/Arduino-Powered-Headdress/

the elettronics works at 5volts and drain max 4 amp.
My needs is a battery pack easily rechargable and smaller as possible'.
I would like to cahrge it from usb
can you suggert me a setup?

this is what Ia m thinking about right now

USB 5v --> step up to 9V -- battery charger protection --> 2 x 18650 in series---- > step down regulator to 5v --> to hat elettronica board

it seems to me overcomplicated , is there a simpler solution ?

thank you
Andrea
 
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