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.
