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 Datasheet4C (15 min) power to 1.67 VPC*Impedance (1kHz)Conductance
NSB12-310 NSB12-310 Datasheet291 / 310 Watts2.61 mΩ1760 S
NSB12-425 NSB12-425 Datasheet397 / 423 Watts2.40 mΩ1875 S
NSB12-540 NSB12-540 Datasheet506 / 540 Watts2.37 mΩ1,952 S
NSB12-170RT NSB12-170RT Datasheet154 / 164 Watts4.1 mΩ1005 S
NSB12-245RT NSB12-245RT Datasheet233 / 248 Watts2.82 mΩ1588 S
NSB12-365RT NSB12-365RT Datasheet342 / 365 Watts2.63 mΩ1808 S
NSB12-425RT NSB12-425RT Datasheet385 / 410 Watts2.60 mΩ1921 S
NSB12-450RT NSB12-450RT Datasheet454 / 484 Watts2.40 mΩ2091 S
NSB12-650RT NSB12-650RT Datasheet608 / 649 Watts2.3 mΩ2300 S
NSB12-730RT NSB12-730RT Datasheet682/728 Watts2.25 mΩ2386 S


Normal Voltage12V
Operating temperature range -40°C to +65°C
Terminal Torque8.0 Nm (71 in-lbs)
Design Life 20°C (68°F) 15+ years
Float Voltage*2.28 / 2.27 VPC