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# batteryLevel

The battery charge level for the device.

```
var batteryLevel: Float { get }
```

## Discussion

Battery level ranges from 0.0 (fully discharged) to 1.0 (100% charged). Before accessing this property, ensure that battery monitoring is enabled.

If battery monitoring is not enabled, battery state is [`UIDevice.BatteryState.unknown`](/documentation/UIKit/UIDevice/BatteryState-swift.enum/unknown) and the value of this property is –1.0.

---

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