BatteryManager: chargingTime property

Limited availability

This feature is not Baseline because it does not work in some of the most widely-used browsers.

Secure context: This feature is available only in secure contexts (HTTPS), in some or all supporting browsers.

The chargingTime read-only property of the BatteryManager interface indicates the amount of time, in seconds, that remain until the battery is fully charged, or 0 if the battery is already fully charged or the user agent is unable to report the battery status information. If the battery is currently discharging, its value is Infinity. When its value changes, the chargingtimechange event is fired.

Note: Even if the time returned is precise to the second, browsers round them to a higher interval (typically to the closest 15 minutes) for privacy reasons.

Value

A number.

Examples

HTML

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

JavaScript

js
navigator.getBattery().then((battery) => {
  const time = battery.chargingTime;

  document.querySelector("#chargingTime").textContent =
    `Time to fully charge the battery: ${time}s`;
});

Specifications

Specification
Battery Status API
# dom-batterymanager-chargingtime

Browser compatibility

Report problems with this compatibility data on GitHub
desktopmobile
Chrome
Edge
Firefox
Opera
Safari
Chrome Android
Firefox for Android
Opera Android
Safari on iOS
Samsung Internet
WebView Android
WebView on iOS
chargingTime

Legend

Tip: you can click/tap on a cell for more information.

Full support
Full support
Partial support
Partial support
No support
No support
Has more compatibility info.

See also