The Battery Class provides information about a battery controller that is currently connected to the device,

Step 1: Open a blank app and add a Button and a TextBlock either from the toolbox or by copying the following XAML code into your grid.

  1. <StackPanel>
  2. <TextBlock Text="Battery Status" Margin="10" FontSize="20"></TextBlock>
  3. <StackPanel Margin="10,20,0,0">
  4. <Button Name="getBatteryStatus" Height="40" Width="140" Content="Get Battery Status" Click="getBatteryStatus_Click"></Button>
  5. <TextBlock Name="batteryStatus" Margin="10,20,0,0" Height="50" FontSize="20"></TextBlock>
  6. </StackPanel>
  7. </StackPanel>

Step 2: Add the following namespaces to your project which is needed in further C# code.

  1. using Windows.Devices.Enumeration;
  2. using Windows.Devices.Power;

Step 3: Copy and paste the following code to the cs page which will be called on button click event and the battery status in the TextBlock.

  1. private async void getBatteryStatus_Click(object sender, RoutedEventArgs e)
  2. {
  3. var deviceInfo = await DeviceInformation.FindAllAsync(Battery.GetDeviceSelector());
  4. foreach (DeviceInformation device in deviceInfo)
  5. {
  6. var battery = await Battery.FromIdAsync(device.Id);
  7. var report = battery.GetReport();
  9. double maximum = Convert.ToDouble(report.FullChargeCapacityInMilliwattHours);
  10. double remaining = Convert.ToDouble(report.RemainingCapacityInMilliwattHours);
  11. double percentage = ((remaining / maximum) * 100);
  12. int per = Convert.ToInt32(percentage);
  14. batteryStatus.Text = "You have " + per.ToString() + "% battery remaining" ;
  15. }
  16. }
Here we are calculating the percentage by using the FullChargeCapacity and RemainingCapacity values.

Step 4: Run your application and test yourself.