Supercap vs. battery

A project log for Solar powered Bluetooth Thermometer with Supercap

Run Xiaomi Thermometer LYWSD03MMC with a supercapacitor and mini solarpanel.

martmetMartMet 04/16/2022 at 18:580 Comments

One year runtime of two devices. Blue = with supercap, Orange = with CR2032 battery

The blue curve shows the daily charge / discharge of the supercapacitor.

The battery lasts approx. one year. and needs to be replaced by april 2022.