Valve-Regulated Lead-Calcium Batteries

Product Information

Valve-Regulated Lead-Calcium Batteries For Standby Applications

Capacities from 100 to 600 Ampere-hours (8 hours to 1.75 VPC) | 343 to 2060 Watts per cell (15 mins to 1.67 VPC)

Liberty Series 1000 valve regulated lead-acid (VRLA) batteries are engineered to provide performance reliability and consistency over the life of the product.

Designed using patented processes, these products offer long battery life with minimal maintenance.

The versatile Liberty Series 1000 10-year VRLA product fits virtually anywhere and provides superior performance in the most demanding applications.

Features and Options
  • Advanced, computer-controlled thermal cover-to-jar weld
  • Automated, state-of-the-art, cast-on strap process
  • Through-the-partition intercell connection
  • Copper-to-copper connections
  • Patented and time-tested post seal design with secondary epoxy seal
  • Two-fold vent system, comprised of a low-pressure safety valve with flash arrester
  • Thick radial grid design for both positive and negative plates
  • Fully automated vacuum and filling operation
  • Immobilized electrolyte technology using an absorbent glass mat design (AGM)
  • Non-spillable designation
  • High-impact resistant PVC container and cover
Nominal voltageSee Model Table
Number of cellsSee Model Table
Rated 8-hr to capacity (ampere-hours to 1.75 VPC)See Model Table
Rated 15-min capacity (watts per cell to 1.67 VPC)LS12-100 - 244 | LS6-200 - 688 | LS4-300 - 1303 | LS2-600 - 2060
Internal resistance per cellLS12-100 - 0.000786 Ohms | LS6-200 - 0.000393 Ohms | LS4-300 - 0.000262 Ohms | LS2-600 - 0.000131 Ohms
Short circuit currentLS12-100 - 2545A | LS6-200 - 5089A | LS4-300 - 7634A | LS2-600 - 15267A
Electrolyte at 77°F (25°C)1.300 gravity nominal sulfuric acid
System Float Voltages2.25–2.27 volts per cell
Life expectancy10 years, full service at 77°F (25°C)
Container and coverHigh-impact, PVC Flammability ratings: UL 94-V0; ASTM D-635, self-extinguishing Oxygen index > 32
Safety vent systemLow-pressure release valve with flash arrester
Dimensions, inches (mm)

16.58 (421) L x 6.84 (174) W x 8.95 (227) H

Weight95 lbs (43 kg)
Plate thickness, inches (mm)Positive - 0.140 (3.56) | Negative - 0.085 (2.16)
Terminal Characteristics0.625 in diameter, threaded copper insert, 0.75 in deep. Fasten with 1/4-20 stainless steel hex bolt /washer.
See datasheet for more detailed specification including discharge tables.
Model NumberNominal Voltage# of Cells8 Hour Capacity
LS12-10012V6 / unit100Ah to 10.5V
LS6-2006V3 / unit200Ah to 5.25V
LS4-3004V2 / unit300Ah to 3.5V
LS2-6002V1 / unit600Ah to 1.75V

NOTE: LS2-600 has 2 cells connected in parallel for 2-volt unit.