9V battery / USB conversion

by AverageSauce

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stepup stepupconverter 9v battery usb

Hi, I needed to power a device running on a 9V battery, with a usb power bank so I designed this.I'm not an electrical engineer so do this at your own risk :'D (So far nothing bad happened )To make the contacts I just used aluminium tape passing through the 2 dedicated slots.