Getting Started 1 - 3
Installing the Battery
To install the battery:
1. Align the tracks on the side of the battery with the rails in the battery compartment.
2. Push the battery in until the battery release latch snaps into place.
3. If the battery is charged, press and hold the Power button for two seconds until the splash screen appears.
Figure 1-2
Inserting the Battery
Charging the Battery
Charging the Main Battery
Before using the ET1 for the first time, charge the main battery until the Battery Charge LED turns solid green
(see Table 1-1 on page 1-4 for charge status indications). To charge the ET1, use a cable or a cradle with the
appropriate power supply. For information about the accessories available for the ET1, see Chapter 2,
Accessories.
The ET1 is equipped with a memory backup battery that automatically charges from the fully-charged main
battery. When using the ET1 for the first time, the backup battery requires approximately 40 hours to fully
charge. This is also true any time the backup battery is discharged, which occurs when the main battery is
removed for several hours. The backup battery retains RAM data in memory for at least 15 minutes (at room
temperature) when the ET1’s main battery is removed, when Battery Swap feature is used. When the ET1
CAUTION Ensure that the correct battery is used with the ET1. On the ET1N0 use either the 4620 mAh battery,
p/n 82-149690-xx or the 5640 mAh battery, p/n 82-158261-xx. On the ET1N2 use only the 5640 mAh
battery, p/n 82-158261-xx.
Battery Tracks
Rails
CAUTION Ensure that you follow the guidelines for battery safety described in Battery Safety Guidelines on page
10-1.
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