EPSTM General Series VRLA Battery

The EPSTM series offers 5 years full maintenance free design life. With optimum designand good
reliability, this series is highly suited for security and alarm systems, UPS systems,emergency
light systems and other small backup applications.

Maintenance & Cautions

• Ensure all batteries operating in a series based connection are not charged excessively;
• Ensure all batteries operating in a series based connection are not discharged excessively;
• Batteries must be charged with the correct voltage;
• Recharge capacity will be 1.1 - 1.15 times the discharge capacity;
• Effect of temperature on cycle charge voltage: -5mV/degrees per cell;
• It is imperative the battery is always in an upright position and never on its side.

Factors Affecting Battery Life

• Depth of discharge
• Temperature
• Recharge rate
• Refer to Technical Specifications

Physical Attributes

• Dimension (mm) : L97mm x W43mm x H58mm
• Approximate Weight : 0.56 kg (1.23 lbs)

Voltage & Designations

• Nominal Voltage (V) : 12 (6 Cells per unit)
• Designed Floating Life (20°C) : 5 Years
• Nominal Capacity (20°C) : 1.3 Ah @ 20HR-rate (to 1.75Vpc)
• Terminal Type Fasten Tab : F1
• Internal Resistance : Approximately 0.08 Ohm (fully charged @ 20°C)
• Max. Charge Current : 0.39A
• Max. Discharge Current (5S) : 20A
• Short Circuit Current : 150A
• Self Discharge : Approximately 3% per month @ 20°C

Ambient Temperature

• Discharge: -15-50°C
• Charge: -15-40°C
• Storage: -15-40°C

• Float Charge Voltage (20 - 25°C) : 13.6-13.8V (-3mV/ cell/ °C)
• Equalize and cycle Use Charge Voltage (20 -25°C) : 14.4-14.8V (-5mV/ cell/ °C)
• Container Material : ABS (UL94-V0 optional)

1. Datasheet - BATT 12V1,4 EPS