Lowest possible voltage to give longest battery life and an issue flashing with linux
On my current watchface (Pokemon V2) there was a voltage to percentage style display for the watch. I decided to do a bit of reading and found the lowest operating voltage for a lot of the hardware on the watchy was 3 volts. I also noted that the 200mAh 402030 LiPo included with the watch had a cut-off voltage of 2.75. At the moment I'm on 54% power left with 3.66 volts on the battery which after two weeks without charging should easily give another 2-3 weeks of battery life before the next recharge, as long as I'm right in thinking all the other components inside the watch will actually keep working that long but I'll post an update around the voltage it actually stops running.
Also, I use an Arch-Based Linux OS and it took me ages to find a way to flash my Watchy but for now I'm opening a terminal and running sudo su > cd / > cd dev > chown <username> ttyUSB0. I do this after connecting the Watchy and for now it's worked a charm but I had to dig around to find out how to do this which is kind of why I bought a Watchy in the first place, I wanted to improve my knowledge of coding and electronics at the same time