Operation Manual

To check the charge status of the main battery, touch > About device > Status.
Battery status indicates that the battery is discharging and Battery level lists the battery charge (as a percentage of
fully charged).
Monitor Battery Usage
The Battery screen lists which applications consume the most battery power. Also use it to turn off applications that
were downloaded if they are consuming too much power.
Touch > Battery.
Figure 12: Battery Screen
The Battery screen lists the applications using the battery. The discharge graph at the top of the screen shows the rate
of the battery discharge since last charged (short periods of time when connected to a charger are shown as thin green
lines at the bottom of the chart), and how long it has been running on battery power.
Touch an application in the Battery screen to display details about its power consumption. Different applications
display different information. Some applications include buttons that open screens with settings to adjust power use.
Low Battery Notification
When the battery charge drops below 20%, the ET1 displays a notice to connect the ET1 to power.
Figure 13: Low Battery Notification
The user should replace the battery or charge the ET1 using one of the charging accessories.
When the battery charge drops below 10%, the ET1 goes into critical suspend mode to save data. The screen turns off.
If the Power button is pressed, the Charge LED flashes yellow.
The user must replace the battery or charge the ET1 using one of the charging accessories to retain data.
Battery Optimization
Observe the following battery saving tips:
• Leave the ET1 connected to AC power at all times when not is use.
• Set the screen to turn off after a short period of non-use.
• Reduce screen brightness.
Getting Started | 25
MN000022A02-A | February 2015