C&D Technologies RS-1826 Liberty Series 1000 FA Battery - Manual (Page 13)

11
1.3.2 Connecting and torquing battery terminal posts
FAM and FA batteries are available in three 12 volt modules sizes
with the following ampere - hour ratings at the 8 hour rate of dis-
charge: 100 Ah, 125 Ah and 150 Ah. Each of the 12 volt modules is
terminated with two terminals one each for positive and negative
connections. The modules are connected positive to negative from
one module to another module in a series arrangement. This is
accomplished by fastening the connector or cable lugs from the
positive terminal of a module to the negative terminal of the next
module. The lug or connector is secured with the appropriate terminal
hardware described in Table 1 and tightened to the torque value
specified in Table 1.
1.3.3 Paralleling batteries
If the capacity requirement of the system requires more ampere
hours than that available in one battery, up to (8) eight batteries of the
same ampere hour size may be connected in parallel. More parallel
strings may be possible dependent on application parameters and
design. Each battery must be of the same voltage and size.
1.3.4 Installation inspection prior to connection to charging
equipment
• Check again that all modules are connected positive terminal to
negative terminal. Measure the battery, voltage with a digital
voltmeter. The voltage should be approximately 12.9 (see table)
volts (open circuit) times the number of modules connected in
series. Example: 12.9 volts x 4 (FAM12-150) = 51.6 volts, repre-
senting a nominal 48 volt system.
• Recheck torque value to make certain that there are no loose
connections that could cause a poor connection possibly creating
an arc or spark or a hot connection that on discharge could melt
the lead components.
• Follow the charger manufacturers instructions and make the
connections to the battery with the charger de-energized.
(Other Rack Layouts
Are Available)