Newstar GNS7512 12V 75Ah Sealed Lead Acid UPS Battery (AGM VRLA – Long Life Series)

The Newstar GNS7512 12V 75Ah is a high-capacity valve-regulated lead-acid (VRLA) battery engineered for UPS backup and critical standby power systems. Built with advanced AGM (Absorbent Glass Mat) technology, this battery delivers excellent discharge performance, low internal resistance, and long service life. With a 10-year float design life, it is ideal for data centres, large UPS systems, telecom infrastructure, and mission-critical backup applications requiring dependable long-term power reliability.

Technical Specifications

• Brand: Newstar
• Model: GNS7512
• Battery Type: Valve Regulated Lead Acid (VRLA)
• Technology: AGM
• Nominal Voltage: 12V (6 cells)
• Rated Capacity:
  • 75Ah (10HR @ 10.8V)
  • 55.5Ah (3HR rate)
  • 41.5Ah (1HR rate @ 10.5V)
• Internal Resistance: Approx. 6mΩ
• Maximum Charging Current: 22.5A
• Maximum Discharge Current: 700A (5 seconds)
• Design Life: 10 years (float use @ 25°C)
• Eurobat Classification: 10–12 years long life category

Physical Dimensions

• Length: 260 ±2 mm
• Width: 168 ±2 mm
• Height: 211 ±2 mm
• Total Height: 215 ±2 mm
• Approx. Weight: 23.5 kg ±3%
• Terminal Type: T14 (M6 bolt connection)

Charging Information

• Float Charging Voltage (25°C): 13.50 – 13.80V
• Cycle Charging Voltage (25°C): 14.50 – 15.00V
• Temperature Compensation:
  • Float: −18mV/°C
  • Cycle: −30mV/°C

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 (10HR):
  • 40°C → 102%
  • 25°C → 100%
  • 0°C → 85%
  • −15°C → 65%
• Self-Discharge (25°C):
  • 3 months → 91%
  • 6 months → 82%
  • 12 months → 65%

Warranty & Usage Disclaimer

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

Important Usage Notice:
This battery is STRICTLY for UPS and standby power use.

Use in cars, generators, mobility devices, golf carts, e-bikes, engine starting applications, or non-UPS usage will void warranty. Warranty claims will not be accepted if used outside standby applications.