У вашего броузера проблема в совместимости с HTML5
Battery level indicator indicates the status of the battery just by glowing LED’s. For example six LED’s are glowing means battery capacity 60% remains. This article explains you how design battery level indicator. You can use this circuit to check car battery or inverter. So by using this circuit, we can increase the lifetime of battery.
Part List:-⤵
*)COLOUR LED
*)PCB
*)RESISTANCE 1k
The great Music used in this video :-⤵
Music: Sophomore Makeout - Silent Partner: https://youtu.be/g2HzEvU1roY