You are reading a single comment by @johan_m_o and its replies.
Click here to read the full conversation.
Espruino is a JavaScript interpreter for low-power Microcontrollers. This site is both a support community for Espruino and a place to share what you are working on.
@johan_m_o
The calibration might be a good idea... My watch, with my current setup, takes about 6 days to reach 50%, and then it's dead 7 hours later (actually reaches 0-ish % before shutting down).