BatteryManager

BatteryManager 인터페이스는 시스템의 배터리 충전 상태에 대한 정보를 확인 하는 방법을 제공합니다.

navigator.battery 프로퍼티는 Battery Status API와 상호작용 할 수 있는 BatteryManager 인터페이스의 인스턴스를 반환합니다.

프로퍼티

BatteryManager.charging Read only: 배터리가 현재 충전 중인지 여부를 Boolean 값으로 나타냅니다.
BatteryManager.chargingTime Read only: 배터리가 완전히 충전되기 까지 남은 시간을 초로 표현합니다. 0 이면 이미 배터리의 충전이 완료 된 상황 입니다.
BatteryManager.dischargingTime Read only: 배터리가 완전히 방전되고 시스템이 중지 될 때까지의 남은 시간을 초로 표현 합니다.
BatteryManager.level Read only: 배터리의 충전 상태를 0.0 에서 1.0 사이의 값으로 표현 합니다.

이벤트 핸들러

BatteryManager.onchargingchange: chargingchange 이벤트의 핸들러 입니다. 이 이벤트는 배터리 충전 상태가 변경될 때 발생합니다.
BatteryManager.onchargingtimechange: chargingtimechange 이벤트의 핸들러 입니다. 이 이벤트는 배터리 충전 시간이 변경될 때 발생합니다.
BatteryManager.ondischargingtimechange: dischargingtimechange 이벤트의 핸들러 입니다. 이 이벤트는 배터리 방전 시간이 변경될 때 발생합니다.
BatteryManager.onlevelchange: levelchange 이벤트의 핸들러 입니다. 이 이벤트는 배터리 수준 상태가 변경 될 때 발생합니다.

메소드

Inherited from EventTarget:

EventTarget 으로 부터 상속을 받습니다:

EventTarget.addEventListener(): Registers an event handler of a specific event type on the EventTarget.
EventTarget.removeEventListener(): Removes an event listener from the EventTarget.
EventTarget.dispatchEvent(): Dispatches an event to this EventTarget.

Additional methods for Mozilla chrome code

Mozilla includes a couple of extensions for use by JS-implemented event targets to implement onevent properties. See also WebIDL bindings.

void setEventHandler(DOMString type, EventHandler handler)
EventHandler getEventHandler(DOMString type)

명세

Specification	Status	Comment
Battery Status API	Candidate Recommendation	초기 명세

브라우저 호환성

Update compatibility data on GitHub

	Desktop						Mobile
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet
`BatteryManager` Deprecated	Chrome Full support 38	Edge No support No	Firefox No support 16 — 52 No support 16 — 52 No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz Full support 52 Notes Disabled Notes Disabled by default in Firefox 10, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Firefox 18. Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 52: this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config. Full support 72 Notes Notes From this version onwards, `BatteryManager` is only available in chrome/privileged code.	IE No support No	Opera Full support 25	Safari No support No	WebView Android Full support 40	Chrome Android Full support 38 Notes Full support 38 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.	Firefox Android No support 10 — 16 Prefixed No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz No support 16 — 52 Notes Disabled Notes Disabled by default in Firefox 10.0, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11.0, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Gecko 18.0 (Firefox 18.0 / Thunderbird 18.0 / SeaMonkey 2.15). Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 16 until version 52 (exclusive): this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config.	Opera Android Full support 25	Safari iOS No support ? — ?	Samsung Internet Android Full support 3.0 Notes Full support 3.0 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.
`charging` Deprecated	Chrome Full support 38	Edge No support No	Firefox No support 16 — 52 No support 16 — 52 No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz Full support 52 Notes Disabled Notes Disabled by default in Firefox 10, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Firefox 18. Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 52: this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config. Full support 72 Notes Notes From this version onwards, `BatteryManager` is only available in chrome/privileged code.	IE No support No	Opera Full support 25	Safari No support No	WebView Android Full support 40	Chrome Android Full support 38 Notes Full support 38 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.	Firefox Android No support 10 — 16 Prefixed No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz No support 16 — 52 Notes Disabled Notes Disabled by default in Firefox 10.0, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11.0, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Gecko 18.0 (Firefox 18.0 / Thunderbird 18.0 / SeaMonkey 2.15). Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 16 until version 52 (exclusive): this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config.	Opera Android Full support 25	Safari iOS No support ? — ?	Samsung Internet Android Full support 3.0 Notes Full support 3.0 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.
`chargingTime` Deprecated	Chrome Full support 38	Edge No support No	Firefox No support 16 — 52 No support 16 — 52 No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz Full support 52 Notes Disabled Notes Disabled by default in Firefox 10, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Firefox 18. Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 52: this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config. Full support 72 Notes Notes From this version onwards, `BatteryManager` is only available in chrome/privileged code.	IE No support No	Opera Full support 25	Safari No support No	WebView Android Full support 40	Chrome Android Full support 38 Notes Full support 38 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.	Firefox Android No support 10 — 16 Prefixed No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz No support 16 — 52 Notes Disabled Notes Disabled by default in Firefox 10.0, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11.0, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Gecko 18.0 (Firefox 18.0 / Thunderbird 18.0 / SeaMonkey 2.15). Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 16 until version 52 (exclusive): this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config.	Opera Android Full support 25	Safari iOS No support ? — ?	Samsung Internet Android Full support 3.0 Notes Full support 3.0 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.
`dischargingTime` Deprecated	Chrome Full support 38	Edge No support No	Firefox No support 16 — 52 No support 16 — 52 No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz Full support 52 Notes Disabled Notes Disabled by default in Firefox 10, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Firefox 18. Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 52: this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config. Full support 72 Notes Notes From this version onwards, `BatteryManager` is only available in chrome/privileged code.	IE No support No	Opera Full support 25	Safari No support No	WebView Android Full support 40	Chrome Android Full support 38 Notes Full support 38 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.	Firefox Android No support 10 — 16 Prefixed No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz No support 16 — 52 Notes Disabled Notes Disabled by default in Firefox 10.0, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11.0, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Gecko 18.0 (Firefox 18.0 / Thunderbird 18.0 / SeaMonkey 2.15). Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 16 until version 52 (exclusive): this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config.	Opera Android Full support 25	Safari iOS No support ? — ?	Samsung Internet Android Full support 3.0 Notes Full support 3.0 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.
`level` Deprecated	Chrome Full support 38	Edge No support No	Firefox No support 16 — 52 No support 16 — 52 No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz Full support 52 Notes Disabled Notes Disabled by default in Firefox 10, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Firefox 18. Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 52: this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config. Full support 72 Notes Notes From this version onwards, `BatteryManager` is only available in chrome/privileged code.	IE No support No	Opera Full support 25	Safari No support No	WebView Android Full support 40	Chrome Android Full support 38 Notes Full support 38 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.	Firefox Android No support 10 — 16 Prefixed No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz No support 16 — 52 Notes Disabled Notes Disabled by default in Firefox 10.0, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11.0, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Gecko 18.0 (Firefox 18.0 / Thunderbird 18.0 / SeaMonkey 2.15). Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 16 until version 52 (exclusive): this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config.	Opera Android Full support 25	Safari iOS No support ? — ?	Samsung Internet Android Full support 3.0 Notes Full support 3.0 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.
`onchargingchange` Deprecated	Chrome Full support 38	Edge No support No	Firefox No support 16 — 52 No support 16 — 52 No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz Full support 52 Notes Disabled Notes Disabled by default in Firefox 10, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Firefox 18. Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 52: this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config. Full support 72 Notes Notes From this version onwards, `BatteryManager` is only available in chrome/privileged code.	IE No support No	Opera Full support 25	Safari No support No	WebView Android Full support 40	Chrome Android Full support 38 Notes Full support 38 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.	Firefox Android No support 10 — 16 Prefixed No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz No support 16 — 52 Notes Disabled Notes Disabled by default in Firefox 10.0, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11.0, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Gecko 18.0 (Firefox 18.0 / Thunderbird 18.0 / SeaMonkey 2.15). Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 16 until version 52 (exclusive): this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config.	Opera Android Full support 25	Safari iOS No support ? — ?	Samsung Internet Android Full support 3.0 Notes Full support 3.0 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.
`onchargingtimechange` Deprecated	Chrome Full support 38	Edge No support No	Firefox No support 16 — 52 No support 16 — 52 No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz Full support 52 Notes Disabled Notes Disabled by default in Firefox 10, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Firefox 18. Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 52: this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config. Full support 72 Notes Notes From this version onwards, `BatteryManager` is only available in chrome/privileged code.	IE No support No	Opera Full support 25	Safari No support No	WebView Android Full support 40	Chrome Android Full support 38 Notes Full support 38 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.	Firefox Android No support 10 — 16 Prefixed No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz No support 16 — 52 Notes Disabled Notes Disabled by default in Firefox 10.0, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11.0, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Gecko 18.0 (Firefox 18.0 / Thunderbird 18.0 / SeaMonkey 2.15). Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 16 until version 52 (exclusive): this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config.	Opera Android Full support 25	Safari iOS No support ? — ?	Samsung Internet Android Full support 3.0 Notes Full support 3.0 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.
`ondischargingtimechange` Deprecated	Chrome Full support 38	Edge No support No	Firefox No support 16 — 52 No support 16 — 52 No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz Full support 52 Notes Disabled Notes Disabled by default in Firefox 10, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Firefox 18. Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 52: this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config. Full support 72 Notes Notes From this version onwards, `BatteryManager` is only available in chrome/privileged code.	IE No support No	Opera Full support 25	Safari No support No	WebView Android Full support 40	Chrome Android Full support 38 Notes Full support 38 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.	Firefox Android No support 10 — 16 Prefixed No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz No support 16 — 52 Notes Disabled Notes Disabled by default in Firefox 10.0, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11.0, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Gecko 18.0 (Firefox 18.0 / Thunderbird 18.0 / SeaMonkey 2.15). Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 16 until version 52 (exclusive): this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config.	Opera Android Full support 25	Safari iOS No support ? — ?	Samsung Internet Android Full support 3.0 Notes Full support 3.0 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.
`onlevelchange` Deprecated	Chrome Full support 38	Edge No support No	Firefox No support 16 — 52 No support 16 — 52 No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz Full support 52 Notes Disabled Notes Disabled by default in Firefox 10, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Firefox 18. Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 52: this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config. Full support 72 Notes Notes From this version onwards, `BatteryManager` is only available in chrome/privileged code.	IE No support No	Opera Full support 25	Safari No support No	WebView Android Full support 40	Chrome Android Full support 38 Notes Full support 38 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.	Firefox Android No support 10 — 16 Prefixed No support 10 — 16 Prefixed Prefixed Implemented with the vendor prefix: moz No support 16 — 52 Notes Disabled Notes Disabled by default in Firefox 10.0, but can be enabled setting the preference `dom.battery.enabled` to `true`. Starting with Firefox 11.0, `mozBattery` is enabled by default. The Battery API is currently supported on Android, Windows, and Linux with UPower installed. Support for MacOS is available starting with Gecko 18.0 (Firefox 18.0 / Thunderbird 18.0 / SeaMonkey 2.15). Firefox also provides support for the deprecated `navigator.battery`. Disabled From version 16 until version 52 (exclusive): this feature is behind the `dom.battery.enabled` preference. To change preferences in Firefox, visit about:config.	Opera Android Full support 25	Safari iOS No support ? — ?	Samsung Internet Android Full support 3.0 Notes Full support 3.0 Notes Notes Values for `BatteryManager.chargingTime` and `BatteryManager.dischargingTime` are always equal to `Infinity`.

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.