You are reading a single comment by @HughB 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.
@HughB
There is a list somewhere of the m/A draw per hardware element.
GPS will flatten the battery in 6 hours.
Leaving heart rate monitor on all the time will produce a big drawer.
Writing to flash storage frequently will run the battery down.
Keeping you backlight on for extended periods will drain the battery.