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batteries

batteries PUBLIC

by paulmirel | updated August 04, 2015

basic   batteries   series   voltage  

Dead Batteries for 5V USB Charger

Dead Batteries for 5V USB Charger PUBLIC

The goal of this project is to make an efficient and cost effective usage of dead AA alkaline batteries. Eventually this will expand into two circuits to switch between: A) step down to 5V while...

by klappy | updated May 22, 2012

aa   batteries   charger   usb  

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