BatteryManager: chargingchange event

{{ApiRef("Battery API")}}{{securecontext_header}}

The chargingchange event of the {{domxref("BatteryManager")}} interface is fired when the battery {{domxref("BatteryManager.charging", "charging")}} property is updated.

Syntax

Use the event name in methods like {{domxref("EventTarget.addEventListener", "addEventListener()")}}, or set an event handler property.

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

onchargingchange = (event) => { }

Event type

A generic {{domxref("Event")}}.

Example

HTML

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

JavaScript

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

{{ EmbedLiveSample('Example', '100%', 40) }}

Specifications

{{Specifications}}

Browser compatibility

{{Compat}}

See also

• {{domxref("BatteryManager")}}
• {{domxref("Navigator.getBattery()")}}