Mesa OPzS Lead Selenium Tubular Plate Batteries

  • OPzS 2Vdc Cells, 109 Ah to 3,367 Ah
  • OPzS 6Vdc Blocks, 202 Ah to 303 Ah
  • OPzS 12Vdc Blocks, 50 Ah to 151 Ah


The Mesa OPzS is a range of lead selenium tubular plate lead-acid batteries in cell and block format (conforming to DIN 40736 (1) for the cells and 40737-3 and 40744 for the blocks). They are ideal for use in the broadest range of stationary DC power supply installations. The combination of lead-selenium alloy with tubular plate construction creates the longest service life lead alloy battery in the world. The OPzS has a 20-year float life, and is rated for more than 1,500 deep discharge cycles to 80% DoD.


  • Utility switchgear
  • Telecommunications
  • UPS units
  • Power plants & substations
  • Process control
  • Emergency backup power


  • Float Voltage: 2.23 to 2.25 VPC
  • Equalize Voltage: 2.35 to 2.40 VPC
  • Specific Gravity: 1.240 kg/L @ 77°F
  • Styrene Acrylonitrile (SAN) jar & cover
  • Flame retardant UL VO 94 available upon special order


For more information or to request a quote contact us using the form below.


Krueger & Associates, LLC. is the factory authorized manufacturers representative for Concentric, LLC dba Mesa Technical Associates, Inc. in Oklahoma, Arkansas, and Missouri. For Mesa customers outside of our service area, click here to locate your local sales and support contacts.

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