ObsoleteThis feature is obsolete.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.
Update compatibility data on GitHub
Desktop | Mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Chrome
Full support 38 |
Edge
Full support 79 |
Firefox No support 16 — 52 No support 16 — 52 No support 10 — 16 Prefixed' Implemented with the vendor prefix: moz Full support 52 Notes' Disabled by default in Firefox 10, but can be enabled setting the preference Notes' From this version onwards, |
IE
No support No |
Opera
Full support 25 |
Safari
No support No |
WebView Android
Full support 40 |
Chrome Android Full support 38 Full support 38 Notes' Values for |
Firefox Android No support 10 — 16 No support 10 — 16 Prefixed' Implemented with the vendor prefix: moz No support 16 — 52 Notes' Disabled by default in Firefox 10.0, but can be enabled setting the preference |
Opera Android
Full support 25 |
Safari iOS
No support ? — ? |
Samsung Internet Android Full support 3.0 Full support 3.0 Notes' Values for |
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.
See also
BatteryManager.dischargingTime by Mozilla Contributors is licensed under CC-BY-SA 2.5.