BatteryManager.dischargingTime

Deprecated: This feature is no longer recommended. Though some browsers might still support it, it may have already been removed from the relevant web standards, may be in the process of being dropped, or may only be kept for compatibility purposes. Avoid using it, and update existing code if possible; see the compatibility table at the bottom of this page to guide your decision. Be aware that this feature may cease to work at any time.

Indicates the amount of time, in seconds, that remains until the battery is fully discharged.

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.

Syntax

var time = battery.dischargingTime

On return, time is the remaining time in seconds until the battery, which is a BatteryManager object, is fully discharged and the system will suspend. This value is Infinity if the battery is currently charging rather than discharging, or if the system is unable to report the remaining discharging time.

Example

HTML Content

<div id="dischargingTime">(discharging time unknown)</div>

JavaScript Content

navigator.getBattery().then(function(battery) {

    var time = battery.dischargingTime;

    document.querySelector('#dischargingTime').textContent = battery.dischargingTime;
});

Specifications

Specification
Battery Status API # dom-batterymanager-dischargingtime

Browser compatibility

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on IOS	Samsung Internet
`dischargingTime`	38	79	43-52	No	25	No	42 38-42 Always equal to `Infinity`.	42 38-42 Always equal to `Infinity`.	43-52	29 25-29 Always equal to `Infinity`.	No	4.0 3.0-4.0 Always equal to `Infinity`.