It’s one of those “consumer electronics” deals where IF you could get the parts, and had a lot of patience to do the repair, it would be a cheap fix. But I imagine 99% go in the trash. If you’ve ever changed the battery in an iPhone, it’s a similar level of miniaturization and complexity.
When this Keurig machine breaks it goes to electronics recycling and I'll order a new one. I've no interest in repairing it. :-)