Korg X5/X5d Internal Battery Holder

tl;dr: Print vertically (as on photo), without supports. Happy Korging!

So the Korg X5 has a soldered-in CR2032 battery, which, in my case died on 31 Dec 2025, lasting for almost 32 years, which I think is pretty decent.

The downside is that you lose all your presets (which you should have backed up anyways) and can never write them back till the battery is replaced. Also, the default presets, whilst can be restored from the permanent ROM of synth, will be wiped every time you shut off your Korg.

Decided to replace the battery, I found out that the original is soldered (well, technically it's a spot welded coin cell), of course I realized I can't weld a new battery in bc of not having a battery welder and not being ready of buying one.

Ordering a battery holder online is not an option when you have a 3d printer! I didn't find anyone who has made this holder (at least publicly) so I decided to model a primitive but useful holder with about 3.5mm space inside (good for 3.2mm thin battery + some space for contacts) after I carefully un-welded the old battery. Those contacts were inserted into the holder, therefore doing 2 important things: actually being contacted with the battery and holding both the battery and holder in place so firmly, that I decided not to use any sort of [hot]glue or any other way to attach the battery holder to the board itself. It is very very firmly being holded by those two contacts. Now I just hope it will last for another 30 years or at least till the end of my days, whatever comes first.

Make sure you be careful with the polarity when changing the battery and use the original (yellow-ish in my case) tape which the originally battery had. Just wrap the new battery in that and you're good to be Korging again!