General Specifications

• Model: GP12400
• Type: Valve Regulated Lead Acid (VRLA), Maintenance-Free
• Technology: Absorbent Glass Mat (AGM) for efficient gas recombination (up to 99%)
• Nominal Voltage: 12V
• Nominal Capacity: 40Ah @ 20-hour rate to 1.75V per cell at 25°C

 Physical Dimensions

• Length: 197.0  2.0 mm
• Width: 165.0 2.0 mm
• Height: 170.4 2.0 mm (both container and overall height)
• Weight: Approx. 12.63 kg (27.84 lbs)

 Electrical Characteristics

• Maximum Discharge Current: 400A (for 5 seconds)
• Short Circuit Current: Approx. 1012A
• Internal Resistance: Approx. 8.5 m
• Float Charging Voltage: 13.5–13.8 VDC/unit at 25°C
• Equalization Charging Voltage: 14.4–15.0 VDC/unit at 25°C

 Temperature Ranges

• Discharge: 15°C to 50°C
• Charge: 15°C to 40°C
• Storage: 15°C to 40°C
• Nominal Operating Temperature: 25°C (77°F)

 Design & Durability

• Design Life: Up to 5 years in standby service
• Container Material: ABS (UL 94-HB); Flame Retardant (UL 94-V0) available on request
• Terminal Type: B8 terminal (accepts M5 bolt)
• Torque for Terminal: 59 Kgf.cm / 51 Lbf.in

Self-Discharge & Storage

• Self-Discharge: Less than 10% after 90 days at 25°C
• Storage Duration: Up to 6 months at 25°C without recharge; recharge sooner if stored at higher temperatures