Constant power consumption when turned off

LilyGO / LILYGO-T-Energy

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Constant power consumption when turned off #11

Open jacol-code opened 1 year ago

jacol-code commented 1 year ago

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 commented 12 months ago

@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)?