Obsolete
This feature is obsolete. Although it may still work in some browsers, its use is discouraged since it could be removed at any time. Try to avoid using it.
Indicates the amount of time, in seconds, that remains until the battery is fully discharged.
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 | Status | Comment |
---|---|---|
Battery Status API | Candidate Recommendation | Initial definition |
Browser compatibility
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
dischargingTime | Chrome Full support 38 | Edge Full support 79 | Firefox
No support
16 — 52
| IE No support No | Opera Full support 25 | Safari No support No | WebView Android Full support 40 | Chrome Android
Full support
38
| Firefox Android
No support
10 — 16
| Opera Android Full support 25 | Safari iOS No support ? — ? | Samsung Internet Android
Full support
3.0
|
Legend
- Full support
- Full support
- No support
- No support
- Deprecated. Not for use in new websites.
- Deprecated. Not for use in new websites.
- See implementation notes.
- See implementation notes.
- User must explicitly enable this feature.
- User must explicitly enable this feature.
- Requires a vendor prefix or different name for use.
- Requires a vendor prefix or different name for use.