Your browser does not seem to support JavaScript. As a result, your viewing experience will be diminished, and you may not be able to execute some actions.
Please download a browser that supports JavaScript, or enable it if it's disabled (i.e. NoScript).
If you will set lcd brightness, m5stack stop working from battery. for ex.: M5.begin(); M5.Lcd.setBrightness(5); ... and m5stack will stop after 1-2 sec. if it is working from internal battery