Windows® Phone 8 Unleashed

Power Management and Push Notification

Even though push notification assists in reducing the power consumption of the phone, maintaining any kind of network connection unfortunately expends more power than most other device functions. Therefore, when the phone’s battery level is low, to help reduce power consumption, the phone progressively prevents certain types of notifications from being received by the device (see Figure 15.3).

FIGURE 15.3 Device power states transition from a normal power level to low and to critically low.

When an HttpNotificationChannel raises its ErrorOccured event with an ErrorType value of PowerLevelChanged, it indicates ...