HP 4400 HP Controller Enclosure Battery Replacement Instructions (593090-001,

HP 4400 Manual

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HP Controller Enclosure Battery
Replacement Instructions
© Copyright 2009 Hewlett-Packard Development Company, L.P.
Second edition: May 2011
The information in this document is subject to change without notice.
Printed in Puerto Rico
www.hp.com
*593090-001*
About this document
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Before you begin
Observe the following precautions when replacing the battery module.
CAUTION:
Removing a battery module significantly changes the air flow
within the enclosure. Both modules must be installed for the
enclosure to cool properly. If a single battery module fails, leave
it in place in the enclosure until a new module is available to
install.
Port-colored (purple) handles on components like the battery module
means the component is hot-swappable. The battery can be removed
and replaced without having to power the system down.
There are two battery modules under the bezel on the front of the
controller enclosure. See
Figure 1
for the locations. Each battery
provides power to the controller directly across from it in the enclos-
ure. Battery 1 (B1) provides power to controller 2 (C2) and battery
2 (B2) provides power to controller 1 (C1).
Your controller enclosure model may vary slightly from what is illus-
trated in this document.
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