Newstar GNS5012 12V 50Ah Sealed Lead Acid UPS Battery (AGM VRLA – Long Life)

The Newstar NP12-50Ah (12V 50Ah) is a high-performance valve regulated lead acid (VRLA) battery designed for UPS backup and standby power systems. Built with advanced AGM (Absorbent Glass Mat) technology, this maintenance-free battery delivers stable discharge performance, long service life, and reliable backup power for critical applications. With a 10-year design life in float service, this battery is ideal for UPS systems, telecom equipment, emergency power, and industrial standby installations requiring dependable long-term performance.

Technical Specifications

• Brand: Newstar
• Model: NP12-50Ah
• Battery Type: Sealed Lead Acid (VRLA)
• Technology: AGM
• Nominal Voltage: 12V (6 cells)
• Rated Capacity:
  • 50Ah (10HR @ 10.8V)
  • 37.5Ah (3HR rate)
  • 27.5Ah (1HR rate)
• Internal Resistance: Approx. 7.5mΩ
• Maximum Charging Current: 15A
• Maximum Discharge Current: 500A (5 sec)
• Design Life: 10 years (float use)
• Eurobat Classification: 10–12 years long life category

Physical Specifications

• Length: 230 ±2 mm
• Width: 138 ±2 mm
• Height: 211 ±2 mm
• Total Height: 215 ±2 mm
• Weight: Approx. 16.2 kg ±3%
• Terminal Type: T14 (M6 bolt type)

Charging Specifications

• Float Voltage: 13.50 – 13.80V
• Cycle Voltage: 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:

• 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 proper operating conditions.

Important Notice:

This battery is STRICTLY for UPS backup use only.

Use in cars, generators, wheelchairs, golf carts, electric bikes, engine starting applications, or any non-UPS usage will void warranty. No warranty will be provided if used outside standby applications.