Use 4mm diameter and 2mm depth Neodymium magnets

a 3mm diameter by 4mm M2 heat set inset is used to tighten down the usbc cable and of course a m2 screw.

I recommend using e7000 glue to glue down the battery plate as its more than strong enough to hold like a champ but you can pry it up without damaging the battery if you chose to remove it. more designs for the R5C coming soon.

you can support my work at Patreon.com/petroniuspixel