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    window.navigator.battery

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    概要

    The battery object provides information about the system's battery charge level; you can also listen to events it sends that provide updates about the battery's charge status. This implements the Battery Status API; see that documentation for additional details, a guide to using the API, and sample code.

    構文

    var battery = window.navigator.battery;

    navigator.battery is a BatteryManager object.

    仕様

    Specification Status Comment
    Battery Status API Working Draft Last Call Working Draft.

    ブラウザ実装状況

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support 38 Supports the deprecated navigator.battery.
    10 (10) moz [1]
    16 (16) (without prefix) [2]
    Not supported 25 Not supported
    Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
    Basic support Not supported 39 [3]

    Supports the deprecated navigator.battery
    10.0 (10) moz [1]
    16.0 (16) (without prefix) [2]

    Not supported 25 [3] Not supported

    Notes

    [1] 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.

    [2] 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).

    [3] Values for BatteryManager.chargingTime and BatteryManager.dischargingTime are always equal to Infinity.

    関連情報

    ドキュメントのタグと貢献者

    Contributors to this page: leaf0115, ethertank, fscholz, jsx
    最終更新者: jsx,
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