Coffee and Tech at @instrumentinventorsinitiative

We spent the evening making DIY batteries from scraps :) . We tested the properties of different metals and media in between, constantly measuring the output of our DIY power source.

One of the outcomes was this battery made from copper tubing (cathode), a galvanised screw (anode) and wet/salty toiletpaper inbetween (the medium carrying electrolytes), connected in series.