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Chapter 2: Installation
Battery Backup Unit (BBU) Installation 2-7
♦ During normal use, an empty cell pack takes about 20 hours to recharge.
♦ Disconnect the BBU if there is a long storage period before deployment. Extreme
storage conditions should be avoided (i.e., temperatures <-20ºC or >65ºC, relative
humidity >65%±10%).
2.8.2 BBU Installation Procedure
Step 1. Remove the chassis top cover. Before installing the BBU module,
remove the chassis top cover. For further instructions on how to remove
the top cover, please refer to Section 2.6.2.
Step 2. Remove the battery connector cap. The connector that connects the BBU
is covered with a cap that must be removed. Remove this cap by gently
pulling it up. Put the cap in a safe place in case it needs to be replaced at
a future time. (See Figure 2-3)
WARNING
The battery cap must be put in a safe place. If the BBU module is removed from the
controller board, the controller will not operate unless the BBU cap is reinstalled
on the board-to-board connector from which it was removed.
Figure 2-3: Remove the Battery Connector Cap
Step 3. Install the battery charger board. The battery charger board comes with
two board-to-board connectors. Align the appropriate connectors with
jumper 7 (JP7) and jumper 2 (JP2) on the controller board. Once these
connectors are aligned with the jumpers, gently insert them into the
jumpers. (See Figure 2-4)