Hearing Aid Battery Case Part 1/5

I have a friend who uses hearing aids for both ears. The hearing aids, doesn't say when the battery is low. it just goes out.

That is why he always keeps some batteries with him. The package is thin cartboard and plastic and when carried in the pocket they can fall out.

The batteries gets activated when the brown flip gets pulled off, so it is important that they stay on there until needed. They still have a minimum of Voltage and if they touch like when they fall out in the pocket they looses what they have and won't work.

So I made him this. It fits 8 Batteries and fits nicely in the pocket. Only the middle turns, buttom and lid are fixed together.

I Made this for the Type 312 Brown (look at the pic of the package).

Feel free to use and share it - I only have one request, If you print it for someone who need it, don't let them pay for it.
https://www.thingiverse.com/thing:3810191

I used an M3 sink-head 10mm screw to put it together. The is room for a small spring and 2,5mm ball, and detents in the lid if you want it to snap.

I earn nothing on these Parts, I do this as a favour if you do not have a Printer.