9v power bank
cults3d
i wanted a power bank which could supply 9v to my dso138 and component tester .. so i coupled a tp4056 charger board and m140 step up board .. Remixed from http://www.thingiverse.com/thing:1684850 This thing was made with Tinkercad. Edit it online https://www.tinkercad.com/things/b2wxAGBoVvL
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