BatteryManager: chargingTime property
The BatteryManager.chargingTime property 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
Examples
HTML
<div id="chargingTime">(charging time unknown)</div>
JavaScript
navigator.getBattery().then((battery) => {
const time = battery.chargingTime;
document.querySelector(
"#chargingTime",
).textContent = `Time to fully charge the battery: ${time}s`;
});
Specifications
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 |
chargingTime |
38 |
79 |
43–52 |
No |
25 |
No |
42
38–42Always equal to 0 or Infinity.
|
42
38–42Always equal to 0 or Infinity.
|
43–52 |
29
25–29Always equal to 0 or Infinity.
|
No |
4.0
3.0–4.0Always equal to 0 or Infinity.
|
See also