Specifications

Chapter 5 Subsystem Maintenance and Upgrading
2. The charger circuitry mounted underneath the controller top cover has
failed.
3. The BBU charger may stop charging the batteries if the upper
temperature threshold is violated. Check the system event messages
to verify and correct the fault condition.
To replace a BBU module, please follow these steps:
Step 1. Remove the BBU module from the subsystem by loosening its spring
screw, and then gently removing the module from the chassis.
Figure 5-4: Removing the BBU Module
Step 2. Re-install the new BBU. To do this, insert the BBU into the module
slot, and fasten the spring screw to secure the BBU.
Replacing a Failed BBU Component 5-9