NSB UPS Pure Lead – High Rate Battery

UPS batteries from NorthStar Battery (NSB) Company provide excellent high-rate discharge and recharge performance for mission-critical applications. Absorbed-Glass-Microfibre (AGM) technology is utilized, which means the electrolyte is fully absorbed in a very fine glass mat. This allows for very efficient recombination of any gas generated during the charging process.

The release of gas from NSB batteries is very low, hence natural ventilation is sufficient for both cooling and the dissipation of any gas formed during inadvertent overcharge. Hence, NSB UPS batteries can be used safely in offices and with mains equipment. NSB UPS batteries excel at providing both short duration high amperage pulses, low rate long duration deep discharges and high cyclic capabilities.


  • Performance excels at high rates of discharge and recharge
  • Pure lead electrochemistry greatly increases temp and corrosion resistance, while reducing component aging
  • Thin plates deliver large surface area, high power density and low resistance
  • Design life 15+ years at 20°C (68°F)
  • EUROBAT design life definition: Very Long Life (12+ years)
  • Extra-long life at high temp operation 40°C (104°F)
  • High cyclic performance
  • Fast recharge
  • Shelf life of up to 24 months
  • Operates even at extreme temperatures of -40ºC to +65ºC (-40ºF to +149ºF)
  • Advanced 3 stage terminal design to ensure leak-free operation
  • Female M8 brass terminals provide maximum performance
  • Non-halogenated, thermally sealed PPOI plastic casing and cover
  • Flame retardant (UL 94 VO) and LOI of at least 28%
  • Integral handles and front access terminals ensure ease of installation and maintenance
  • Approved as non-hazardous cargo for ground, sea, and air transport


Model  Datasheet 4C (15 min) power to 1.67 VPC* Impedance (1kHz) Conductance
NSB12-310 NSB12-310 Datasheet 291 / 310 Watts 2.61 mΩ 1760 S
NSB12-425 NSB12-425 Datasheet 397 / 423 Watts 2.40 mΩ 1875 S
NSB12-540 NSB12-540 Datasheet 506 / 540 Watts 2.37 mΩ 1,952 S
NSB12-170RT NSB12-170RT Datasheet 154 / 164 Watts 4.1 mΩ 1005 S
NSB12-245RT NSB12-245RT Datasheet 233 / 248 Watts 2.82 mΩ 1588 S
NSB12-365RT NSB12-365RT Datasheet 342 / 365 Watts 2.63 mΩ 1808 S
NSB12-425RT NSB12-425RT Datasheet 385 / 410 Watts 2.60 mΩ 1921 S
NSB12-450RT NSB12-450RT Datasheet 454 / 484 Watts 2.40 mΩ 2091 S
NSB12-650RT NSB12-650RT Datasheet 608 / 649 Watts 2.3 mΩ 2300 S
NSB12-730RT NSB12-730RT Datasheet 682/728 Watts 2.25 mΩ 2386 S


Normal Voltage 12V
Operating temperature range  -40°C to +65°C
Terminal Torque 8.0 Nm (71 in-lbs)
Design Life 20°C (68°F)  15+ years
Float Voltage* 2.28 / 2.27 VPC