Constant power consumption when turned off

[jacol-code]

Hi,

I've noticed something worrying about T-Energy. Battery is constantly drained with ~8mA current no matter if the board is off or ESP is in a deep sleep. Additionally, there is audible buzz coming from the board (voltage regulator?).

Is this by design? If so, the set of use-cases for this board is very limited.

Thank you in advance.

[sle118]

@jacol-code I've noticed the same from my end. What's the point of creating a device with a 18650 battery holder if it isn't possible to expect a reasonable battery life? Could anyone from @LilyGO provide a deep sleep example that isolates pins where needed (e.g. rtc_gpio_isolate(GPIO_NUM_12), because WROVER modules have an internal pull-up on that pin by default)?