BatteryManager: chargingtimechange event

Secure context

The chargingtimechange event of the BatteryManager interface is fired when the battery chargingTime property is updated.

Syntax

Use the event name in methods like addEventListener(), or set an event handler property.

addEventListener("chargingtimechange", (event) => { })

onchargingtimechange = (event) => { }

Event type

A generic Event.

Example

HTML

<div id="level">(battery level unknown)</div>
<div id="chargingTime">(charging time unknown)</div>

JavaScript

navigator.getBattery().then((battery) => {
  battery.onchargingtimechange = () => {
    document.querySelector("#level").textContent = battery.level;
    document.querySelector("#chargingTime").textContent = battery.chargingTime;
  };
});

Specifications

Browser compatibility

See also

• BatteryManager
• getBattery()