C&D Technologies RS-990 Liberty Series 1000 - Manual (Page 12)

Model LS 12-100 LS 6-200 LS 4-300 LS 2-600
Nominal voltage 12 Volts 6 Volts 4 Volts 2 Volts
Number of cells in 6/unit 3/unit 2/unit 1/unit
module
Rated 8 hr. 100 Ah 200 Ah 300 Ah 600 Ah
capacity (Ampere- to to to to
hours to 1.75 Vpc) 10.5 Volts 5.25 Volts 3.5 Volts 1.75 Volts
Rated 15-min capacity 0.344 0.688 1.032 2.063
(kiloWatts to 1.67 Vpc)
Internal resistance/cell 0.0008 Ohms 0.0004 Ohms 0.0003 Ohms 0.0001 Ohms
Short circuit current 2545 A 5089 A 7634 A 15267 A
Unit height 9.20 in 9.20 in 9.20 in 9.20 in
(234 mm) (234 mm) (234 mm) (234 mm)
Unit length 16.58 in 16.58 in 16.58 in 16.58 in
(includes handles) (421 mm) (421 mm) (421 mm) (421 mm)
Unit width 6.84 in 6.84 in 6.84 in 6.84 in
(174 mm) (174 mm) (174 mm) (174 mm)
Weight 95 lbs 95 lbs 95 lbs 95 lbs
(43 kg) (43 kg) (43 kg) (43 kg)
Terminal 1.00 in (25 mm) .00 in (25 mm) 1.00 in (25 mm) 1.00 in (25 mm)
characteristics diameter threaded diameter threaded diameter threaded diameter threaded
brass insert, 0.75 brass insert, 0.75 brass insert, 0.75 brass insert, 0.75
in (19 mm) deep. in (19 mm) deep. in (19 mm) deep. in (19 mm) deep.
Fasten with 1/4-20 Fasten with 1/4-20 Fasten with 1/4-20 Fasten with 1/4-20
stainless steel stainless steel stainless steel stainless steel
hex bolt/washer hex bolt/washer hex bolt/washer hex bolt/washer
Tightening torque 110 in-lbs (12.4 N*m) 110 in-lbs (12.4 N*m) 110 in-lbs (12.4 N*m) 110 in-lbs (12.4 N*m)
Re-torque 100 in-lbs (11.3 N*m) 100 in-lbs (11.3 N*m) 100 in-lbs (11.3 N*m) 100 in-lbs (11.3 N*m)
Boost charge voltage 2.33 +/-.02 Vpc 2.33 +/-.02 Vpc 2.33 +/-.02 Vpc 2.33 +/-.02 Vpc
Nominal float voltage 2.26 +/-.01 Vpc 2.26 +/-.01 Vpc 2.26 +/-.01 Vpc 2.26 +/-.01 Vpc
Electrolyte at 77°F (25°C) 1.300 Specific 1.300 Specific 1.300 Specific 1.300 Specific
nominal value Gravity Gravity Gravity Gravity
10
TABLE 2 (CONTINUED)
3.2 Ventilation
The Liberty Series 1000 battery is a valve-regulated, low-maintenance battery, which, under normal float
conditions, requires only normal room ventilation. Therefore, under normal float operation, Liberty batteries
can be installed in proximity to electronic equipment and in computer rooms with personnel present.
However, should the battery be subjected to excessive overcharge, hydrogen and oxygen can be vented to
the atmosphere.
Therefore, the battery should never be installed in an airtight enclosure. Sufficient
precautions must be taken to prevent excessive overcharge and containment of potential gases.