Battery stucks at 100% for months with LYWSD03MMC

pvvx / ATC_MiThermometer

Custom firmware for the Xiaomi Thermometers and Telink Flasher

https://github.com/pvvx/pvvx.github.io/tree/master/ATC_MiThermometer

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Battery stucks at 100% for months with LYWSD03MMC #507

Closed cdenfert closed 5 months ago

cdenfert commented 5 months ago

Hello,

I have a problem with 2 of my LYWSD03MMCs, the battery has been stuck at 100% for months. Hardware version is B1.7 and B1.9, firmware 4.6 & 4.7 It didn't behave like this before I changed the batteries.

Is it a hardware problem?

Thank you in advance

pvvx commented 5 months ago

Battery voltage above 2950 mV is considered 100%. Rated voltage CR2032 3.0 V without load. See the manufacturer's specifications for battery discharge voltage graphs.

ENERGIZER CR2032