Chapter 3. Installing a Battery Backup Unit
4Mount the battery in the selected location by snapping it in place.
a Insert the two clips on the top of the battery module into the two slots at the top edge of positions 2 or 3 (Figure 15), or in the holes at the left edge of position 1.
b Press down gently on the battery module until the bottom clip snaps into place in the lower hole.
Figure 15. Attaching the battery module to the remote board
Bottom clip will snap in here
9Insert the remote battery board in the chosen expansion slot and secure the bracket with the screw you removed in step 2. (Note that the remote battery board does not have a connector that inserts into a slot on the motherboard).
223ware 9690SA SAS/SATA RAID Controller Installation Guide