C&D Technologies 41-7525 VRLA Batteries (rack mounted systems) - Manual (Page 9)

If the measured voltage is not as expected,
determine the cause and correct before
proceeding.
If a battery is installed with reverse polarity, the
measured voltage for the tier of batteries will be
reduced from the expected value by twice the
open circuit voltage of the individual battery.
Intertier, Interrow and Interrack
Connections
Cables used to interconnect tiers, rows and
racks of batteries should be of at least the
same size as the interunit connecting cables.
Cables supplied as a system meet specific
dimensions required for racks designed by
C&D. This includes consideration for spacing,
maximum load and cable configuration.
Refer to the battery system schematic diagram
and the battery numbers to determine the location
of the various cables interconnecting the tiers of
batteries.
Refer to systems drawings for the specific cable
to be used to interconnect the tiers and rows of
batteries and figures 6, 7, 8 and 9 for the typical
connection techniques.
Prepare, assemble and secure the intertier cabled
connections in the same manner as the interunit
cabled connections.
Measure the open circuit voltage of the completely
interconnected system. The expected voltage
should be:
System OCV = number batteries x battery OCV
If the measure voltage is not the expected voltage,
determine the cause and correct before
proceeding.
41-7525/0514/CD 9 www.cdtechno.com