1. Installing Internal Optional Devices
Express5800/T120d User’s Guide
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Chapter 2 Preparations
3.
Connect a cable that comes with additional battery to the additional battery.
Align BLACK dot on the connectors of a Battery Control Cable and a Battery Connector on a BBU.
4.
Remove a single screw and remove battery tray for RAID Controller.
5.
Install the additional battery to the battery tray by using three screws.