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The chargingchange event of the BatteryManager interface is fired when the battery charging property is updated.
Use the event name in methods like addEventListener(), or set an event handler property.
addEventListener("chargingchange", (event) => { })
onchargingchange = (event) => { }A generic Event.
<div id="level">(battery level unknown)</div>
<div id="chargingTime">(charging time unknown)</div>navigator.getBattery().then((battery) => {
battery.onchargingchange = () => {
document.querySelector("#level").textContent = battery.level;
document.querySelector("#chargingTime").textContent = battery.chargingTime;
};
});