Accessories
138
Power Pack
The optional Power Pack provides additional power for charging the main battery.
Figure 106 Power Pack
1. Install one of the optional Expansion Backs. See ET51/56 Integrator Guide for more information.
2. Press the two release buttons on the side of the Expansion Back. The dummy battery insert ejects slightly.
Figure 107 Remove Dummy Battery Insert
3. Remove dummy battery insert.
4. Insert Power Pack into slot until it snaps into place.
Figure 108 Install Power Pack
Charge Level Indicators
Charge Indicator Button
Power Output Contacts