BatteryManager: charging property

The BatteryManager.charging property is a Boolean value indicating whether or not the device's battery is currently being charged. When its value changes, the chargingchange event is fired.

If the battery is charging, this value is true. Otherwise, it is false.

<div id="charging">(charging state unknown)</div>

navigator.getBattery().then((battery) => {
  const charging = battery.charging;

  document.querySelector("#charging").textContent = charging;
});