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Editorial Team
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Asked: 2026-06-02T15:32:54+00:00

I set BatteryMonitoringEnabled to True before accessing the battery information. The documentation says that

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I set BatteryMonitoringEnabled to True before accessing the battery information.

The documentation says that -1 should be returned only if the monitoring hasn’t been enabled.

However, I always get -1 as the value of BatteryLevel property and Unknown as BatteryState, despite that I enabled the monitoring.

UIDevice.CurrentDevice.BatteryMonitoringEnabled=true;

Console.WriteLine (UIDevice.CurrentDevice.BatteryLevel.ToString());

Result -1

Console.WriteLine (UIDevice.CurrentDevice.BatteryState.ToString());

Result “Unknown”

Anything I’m missing here?

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1 Answer

  1. Editorial Team

    This works for me. Could you be running this inside the iOS simulator ? If so what’s you’re observing would be normal results.

    If you cannot this to work please fill a bug report @ http://bugzilla.xamarin.com and state which version of MonoTouch, devices, iOS versions are in use.

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