IBM TotalStorage DS300 Hardware Installation And User's Manual page 63

a. While squeezing together the latch and lever that are on each side of the
controller, press down on the orange area on each latch. The controller will
slide out of the bay a short distance.
RAID controller
Figure 35. Removing a RAID controller
b. Grasp both latches and pull the controller out of the bay.
c. Place the controller on a dry, level surface.
9. Remove the cache battery from the controller:
a. Loosen the thumbscrew that holds the battery in place.
Figure 36. Removing the RAID controller battery
b. Hold down the edge of the controller base on the battery side (near the
thumbscrew).
c. Pull up on the blue lift tab on the battery to remove it from the connector.
d. Slide the battery toward the open end of the controller to remove it.
e. Dispose of the used battery according to local and federal regulations,
which might include hazardous material handling procedures. For more
information, see "Battery return program" on page 85.
10. Unpack the replacement battery and set it on a dry, level surface. Save the
packing material and documentation in case you have to return the battery.
11. Install the new cache battery into the RAID controller:
a. Slide the battery under the tab near the front of the RAID controller.
RAID controller
filler panel
Battery
Thumbscrew
Chapter 5. Installing and replacing components
49