mintsPi

A BATTERY OPERATED PI ZERO IN A MINT TIN

IN PROGRESS, NOT FINISHED...

PARTS AND TOOLS

Altoids or equivalent size mint tin

18650 lithium battery

18650 battery holder with leads

battery charger/boost converter module

22 gauge steel

4 4-40 standoffs

4 4-40 bolts

rotary tool

small mounted stone for rotary tool

double back tape

silicone caulk

99% isopropyl alcohol

PARTS SOURCES

BATTERY HOLDER MOUNTING

Tape the battery holder wires so they can't short against anything. Insert the battery into the battery holder. Clean the inside of the mint tin and the bottom of the battery holder with alcohol. Smear a thin layer of caulk on each to prime them, then put a small bead on the bottom of the battery holder. Press it into the back of the mint tin, about 2 mm away from the back wall and centered left to right. The black lead should be on the left. Press down hard enough so that the battery holder is touching the bottom of the tin - there isn't enough room in the tin to have it any higher than this. Let the caulk cure for a couple of days.

This site has been tested to display correctly using Epiphany on the Raspberry Pi