Narada HRXL Series Batteries

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The Narada HRXL series VRLA batteries are designed to provide Extreme life in conventional temperature application as well as longer life than traditional VRLA batteries in high temperature applications.  Perfectly suited to any application that requires a high rate current over a short period.  The HRXL series combine proven high temperature technology to offer exceptional service life. Alpine Power Systems is an approved distributor of Narada HRXL batteries.

Narada HRXL Battery Technical Features:

  • Flame Retardant ABS Cover and Container, UL94 V-0, LOI>28%
  • Patented copper alloy terminal design
  • Epoxy TPS design for a high reliability post seal
  • 6-month storage at 77oF (25oC), capacity > 80%
  • Initial capacity100%
  • Low pressure one-way flame arresting catalyst valve(s) UL1989
  • Optimized Grid Alloy, Separator and Pure Lead Paste
  • Absorbent Glass Mat (AGM) Sealed Technology, Recombination efficiency of 99.9%

Narada HRXL Batteries Compliance and Safety:

  • ISO 9001:2000 and ISO 14001:2004 certified production facilities
  • UL Recognized Component 924, for use in or with listed UL1778, UL1989 and UL924 systems
  • IEC60896-21/22
  • BS6290 part 4 / Eurobatt guide
  • TL9001 / ISO9001(TUV) Quality System
  • Battery installation compliant with: EN 50272-2
  • All batteries meet or exceed IEEE recommended practices

Narada HRXL Battery Transportation:

  • Classified as Nonspillable UN 2800 and meet the Nonspillable criteria listed in DOT-CFR Title 49, 171- 189 (d) (3) (i) and (ii) and exempt from CFR 49, Subchapter C requirements
  • Meets transportation conditions of IMDG exemption 238, IATA/ICAO Special Provision A67 (Not Restricted)

Narada HRXL Battery Operating Parameters:

Float Charging Voltage: 2.25Vpc to 2.27Vpc @ 77°F (25°C)

Equalize Charging Voltage: 2.35Vpc to 2.40 Vpc @ 77°F (25°C)

Maximum AC Ripple (Charger):  0.5% RMS, 1.5% peak-to-peak for float charge voltage for best results

Maximum Charge Current: C5 Rate Amps (5-hour rate @ 1.75vpc)

Electrolyte: Absorbed 1.300 s.g.  H2SO4

Self-Discharge Rate: <2% per month at 77°F (25°)

Relief Valve: Self-resealing; Operates at 2 to 3 psi and is complete with integral flame arrestor

Operating Temperature Ranges:

  • Nominal: +74°F (24°C) to 80°F (27°C)
  • Charge: -20°F (-28°C) to +104°F (40°C)
  • Discharge: -40°F (-40°C) to +104°F (40°C)
  • Storage Temperature Range: -4°F (-20°C)   to +104°F (40°C)

Narada HRXL Battery Applications:

  • Data Center (UPS)
  • Telecom

Additional Details


  • UPS
  • CATV & Broadband
  • Telecom


  • AGM (VRLA)



Downloads & Documentation

See below for documentation relating to this product line that is available to download. To download this documentation, please click on the desired document you’d like to download and fill out the required form information fields. You will be able to view and download the documents upon completion of the download form.

  • Narada HRXL Battery Brochure
  • Narada-VRLA-Installation-Operation-Maintenance-Manual.pdf
  • Narada-VRLA-Safety-Data-Sheet.pdf