@gbraad I have it only since a big month, i'm rarely using.
So far, still the same battery. I'm also curious about the lifetime of them .
i travel with a spare one in case of.
Yes EMR tech is the holy grail of digitiser, on samsung laptop and wacoms (and few other, an acer, etc) have it. But too hard to find one supported on Gnu/Linux and it was my priority.