Kurweil PC2X battery

I just got a Scanner Broken, low battery screen when I powered up the PC2X. It looks like Syntaur doesn’t have any replacement batteries. Any idea where to find a battery? Is replacement fairly easy?

Thanks!

According to this thread here: Kurzweil PC2X | Musiker-Board it’s a standard CR2032 coin cell battery which can be exchanged by opening the little trapdoor on the bottom of the device where you’d also install ROM expansions. If any ROM expansions are installed, they apparently need to be removed to be able to access the battery holder.