1. @DomName('Navigator.getBattery')
  2. @DocsEditable()
  3. @Experimental()
Future getBattery()

Source 

@DomName('Navigator.getBattery')
@DocsEditable()
@Experimental() // untriaged
Future getBattery() => convertNativePromiseToDartFuture(
    _blink.BlinkNavigator.instance.getBattery_Callback_0_(this));