APC 990-1387A - Manual (Page 6)

2
Installing the External Battery Pack(s)
Your UPS model may vary from the model depicted in the diagram. The battery installation
procedure is identical for all models.
Prior to connecting the batteries, and tie brackets
(when used), remove the feet (if installed), from
the bottom of the UPS. See diagram.
R EMOVING B ATTERIES FROM THE E XTERNAL B ATTERY P ACK
This unit is heavy. To lighten the unit, remove the batteries. Refer to the unpacking instructions on
the carton the unit is shipped in or see instructions below.
1 2 3
T OWER C ONFIGURATION
Installing and Connecting the External Battery Pack(s)
NOTE: The external battery packs must be installed to the right of the UPS when facing the
front of the units, (see diagrams below).
x4
x4
x9
4
3
2
1
1. Remove the screws that
secure the top covers. 2. Install the tie bracket
securing the UPS and
external battery pack
(screws included).