Replacing the 2145 UPS battery

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

DANGER

Uninterruptible power supply units contain specific hazardous materials. Observe the following precautions if your product contains an uninterruptible power supply:

The uninterruptible power supply 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 uninterruptible power supply.
The uninterruptible power supply contains its own energy source (batteries). The output receptacles might carry live voltage even when the uninterruptible power supply is not connected to an ac supply.
Do not remove or unplug the input cord when the uninterruptible power supply is turned on. This removes the safety ground from the uninterruptible power supply and the equipment connected to the uninterruptible power supply.
The uninterruptible power supply is heavy because of the electronics and batteries that are required. To avoid injury, observe the following precautions:
- Do not attempt to lift the uninterruptible power supply by yourself. Ask another service representative for assistance.
- Remove the battery, electronics assembly, or both from the uninterruptible power supply before removing the uninterruptible power supply from the shipping carton or installing or removing the uninterruptible power supply in the rack.

(D007)

CAUTION:

Lead-acid batteries can present a risk of electrical burn from high, short-circuit current. Avoid battery contact with metal materials; remove watches, rings, or other metal objects, and use tools with insulated handles. To avoid possible explosion, do not burn.

Exchange only with the IBM-approved part. Recycle or discard the battery as instructed by local regulations. In the United States, IBM has a process for the collection of this battery. For information, call 1-800-426-4333. Have the IBM part number for the battery unit available when you call. (C004)

Use the reference numbers in parentheses at the end of each notice, such as (C003) for example, to find the matching translated notice in IBM® Systems Safety Notices.

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

Make sure that the 2145 UPS is powered off and unplugged.
With the help from another service support representative, grab the tabs on the battery assembly and gently push the battery in to the 2145 UPS.
Replace the battery plate, as shown in Figure 1.
Figure 1. Replacing the 2145 UPS battery plate
Perform the following steps to replace the battery retaining bracket:
1. Replace the battery retaining bracket ( 3 in Figure 2).
2. Replace the hex nut 2 .
3. Replace the two bolts 1 .
Figure 2. Fastening the battery retaining bracket
If the battery has two red cables that are disconnected, perform the following steps to connect the internal battery connector:
1. Remove the protective tape from the internal battery connector (shown in Figure 3).
  Figure 3. The 2145 UPS internal battery connector with protective tape
2. Connect the internal battery connector (shown in Figure 4).
  Note: A small amount of arcing might occur when connecting the batteries. This is normal and does not damage the unit or present any safety concerns.
  
  Figure 4. Connecting the 2145 UPS internal battery connectors
Replace the front panel by pressing the sides inward, and pushing on both ends towards the 2145 UPS, as shown in Figure 5).
Figure 5. Replacing the 2145 UPS front panel
At the front of the 2145 UPS, press and hold the on button until you hear a beep (approximately one second). The mode indicator stops flashing, and the load-level indicators display the percentage of load that is being applied to the 2145 UPS. See 2145 UPS controls and indicators for more information.