Removing the 2145 UPS battery

Follow all safety notices when you are removing the 2145 UPS battery.

Before you begin

DANGER
Uninterruptible power supply (UPS) units contain specific hazardous materials. Observe the following precautions if your product contains a UPS:
  • The UPS contains lethal voltages. All repairs and service must be performed only by an authorized service support representative. There are no user serviceable parts inside the UPS.
  • The UPS contains its own energy source (batteries). The output receptacles might carry live voltage even when the UPS is not connected to an AC supply.
  • Do not remove or unplug the input cord when the UPS is turned on. This removes the safety ground from the UPS and the equipment connected to the UPS.
  • The UPS is heavy because of the electronics and batteries that are required. To avoid injury, observe the following precautions:
    • Do not attempt to lift the UPS by yourself. Ask another service representative for assistance.
    • Remove the battery, electronics assembly, or both from the UPS before removing the UPS from the shipping carton or installing or removing the UPS in the rack. (D007)
CAUTION:
Two graphics show 3 persons carrying a heavy box; one graphic shows an icon with text warning that weight i s more than 32 kg (70.5 lb)
The weight of this part or unit is between 32 and 55 kg (70.5 and 121.2 lb). It takes three persons to safely lift this part or unit. (C010)

Use the reference numbers in parentheses at the end of each notice (for example, D005) to find the matching translated notice in IBM System Storage SAN Volume Controller Safety Notices.

About this task

Important: Before you perform step 1, check to make sure that any SAN Volume Controller that is powered by this 2145 UPS is shut down and turned off. See MAP 5350: Powering off a node.

Perform the following steps to remove the 2145 UPS battery assembly:

Procedure

  1. At the front of the 2145 UPS, press and hold the off button ( 1  in Figure 1) for approximately five seconds or until the long beep stops.
    Figure 1. 2145 UPS front-panel assembly
    This figure shows the 2145 UPS front-panel assembly
  2. Remove the front panel by pressing the sides inward, and pulling on both ends towards you, as shown in Figure 2.
    Figure 2. Removing the 2145 UPS front panel
    This figure shows how the 2145 UPS front panel is removed
  3. Perform the following steps to remove the battery retaining bracket, which is shown in Figure 3:
    1. Remove the two bolts  1 .
    2. Remove the hex nut  2 .
    3. Remove the battery retaining bracket  3 .
    Figure 3. Fastening the battery retaining bracket
    This figure shows the fasteners for the 2145 UPS battery retaining bracket
  4. Remove the battery plate to access to the battery, as shown in Figure 4.
    Figure 4. Removing the 2145 UPS battery
    This figure shows how to remove the 2145 UPS battery
  5. Grab the tabs on the battery assembly and pull the battery outward to allow two people to access it for removal.
  6. With the help from another service support representative, pull the battery out onto a flat, stable surface.