If I may add a few things I’ve noticed on mine.
The screws on mine all needed tightening. But after tightening I saw no change in battery consumption. However, I did notice what seems to be an oxide layer building up on the negative battery wheel. I use molicel’s for the San and they were bought brand new from a reputable supplier at the time I got the San just a few months back. I’m thinking maybe a galvanic reaction is depositing a layer of oxidation on the wheel. That in combination with how hard it is to tighten the wheel may be contributing to some of these power issues.
Like others, I put in a brand new fully charged battery showing 4.2v, and when the San shows it as empty it’s at 3.6 (at least according to my charger).
what’s even more odd is when I replace the battery with a fully charged one, the display shows somewhere around half to 3/4’s full battery when it’s first turned on. But once the screen goes dark, when I press the fire button and the screen comes back up the battery display icon then will finally update to show the full battery. This behavior seems to be unrelated to the battery level of the old one that was removed.
But how come we cannot change the battery cutoff on evolv for the dna80c like we could with other dna chips?