Connect the tablet to external AC power under any of the following conditions:

When charging a battery

When installing or modifying system software

When running Disk Defragmenter

When performing a backup or recovery

When you connect the tablet to external AC power, the following events occur:

The battery begins to charge.

If the tablet is turned on, the power meter icon in the notification area changes appearance. When you disconnect external AC power, the following events occur:

The tablet switches to battery power.

The display brightness is automatically decreased to save battery life.

30 Chapter 6 Power management