Newstar 12V 45Ah Sealed Lead Acid UPS Battery (AGM VRLA – Long Life) GNS4512

The Newstar GNS4512 (12V 45Ah) is a high-performance valve regulated lead acid (VRLA) battery designed for UPS backup and standby power applications. Built with advanced AGM (Absorbent Glass Mat) technology, this maintenance-free battery delivers stable discharge performance, low internal resistance, and dependable long-term backup power. With a 10-year float design life at 25°C, it is ideal for UPS systems, telecom equipment, emergency power installations, and industrial standby applications requiring reliable performance.

Technical Specifications

• Brand: Newstar
• Model: GNS4512
• Battery Type: Sealed Lead Acid (VRLA)
• Technology: AGM
• Nominal Voltage: 12V (6 cells)
• Rated Capacity:
  • 45Ah (10HR @ 10.8V)
  • 33Ah (3HR @ 10.8V)
  • 25Ah (1HR @ 10.5V)
• Internal Resistance: Approx. 7.5mΩ
• Maximum Charging Current: 13.5A
• Maximum Discharge Current: 400A (5 sec.)
• Design Life: 10 years (float use at 25°C)
• Eurobat Classification: 10–12 years, long life

Physical Specifications

• Length: 197 ±2 mm
• Width: 165 ±2 mm
• Height: 170 ±2 mm
• Total Height: 170 ±2 mm
• Weight: Approx. 13.80 kg ±3%
• Terminal Type: T14 (M6 × 16 bolt type)
• Recommended Terminal Torque: 5.1 ±0.6 N.m

Charging Specifications

• Float Voltage: 13.50 – 13.80V
• Cycle Voltage: 14.50 – 15.00V
• Temperature Compensation:
  • Float: −18mV/°C/Block
  • Cycle: −30mV/°C/Block

Operating Conditions

• Discharge Temperature: −15°C to 50°C
• Charge Temperature: −10°C to 50°C
• Storage Temperature: −20°C to 50°C

Capacity vs Temperature:

• 40°C → 102%
• 25°C → 100%
• 0°C → 85%
• −15°C → 65%

Self-Discharge:

• 3 months → 91%
• 6 months → 82%
• 12 months → 65%

Warranty & Usage Disclaimer

Warranty:
This battery includes a 1-year warranty only when used for UPS backup applications under normal operating conditions.

Important Notice:
This battery is STRICTLY for UPS backup use only.