As suggested in this conversation, you can use the 'Power Manager' app's logging features to try and get some indication on what happens.
@Ganblejs started
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.
As suggested in this conversation, you can use the 'Power Manager' app's logging features to try and get some indication on what happens.