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Highly efficient power supply and backup power supply solutions to telecommunications, information and industrial technologies.


Batteries FIAMM Endurlite LM Solar OPzS

 Applications and key benefits
  • Solar 2V cells
    up to 5000 Ah real capacity at C120 1.85 VPC
  • Designed for regular and long deep discharge.
    Ideal for:
    • Renewable energy islands (Solar / Wind)
    • Off-grid applications: BTS, mobile phone stations, signaling, lighting, drinking water supply systems and other
    • High capacity applications in areas with unstable grid and unreliable power supply
  • Excellent cycling also in state of partial discharge.
  • > 1500 cycles at 20°C / 60% DoD
    > 5000 cycles at 20°C / 20% DoD.
  • OPzS technology, with tubular positive plates and free liquid electrolyte.
  • Allows use with electrolyte recirculation.
  • Dimensions according to DIN 40736 OPzS cells.
  • Suitable for use at elevated temperature.
  • Optimized for deep discharge recovery DIN 43539T5.
  • 20 years design life under float condition.
  • Also available in dry charged version.
  • 100% Recyclable.
 Technical features
  • Tubular positive plates with special low antimony lead alloy reduces loss of water (3-year topping-up intervals on float condition).
  • Electrolyte: high purity sulphuric acid solution with 1.24 specific gravity at 20°C.
  • Additional electrolyte to reduce topping-up.
  • Pasted negative grid plates designed to have service lives consistent with the positive plates.
  • Separators with extremely high porosity and low internal resistance.
  • Container in acid resistant SAN, designed for unsurpassed mechanical strength.
  • Lid in standard ABS.
  • Threaded female M10 terminal posts guarantee highest conductivity, maximum torque retention and easy installation.
  • High integrity post seal design to prevent electrolyte leakage and terminal corrosion.
  • Ceramic plugs filter electrolyte from escaping gasses.
  • Flame arrestors prevent sparks or flames from entering the battery.
  • < 3% self-discharge per month at 20°C allows 6 months shelf life.
  • Installation in vertical position.
  • Flexible, fully insulated cable connectors with insulated screw with probe hole on the top for electrical measurement.
 Applicable Standards
  • IEC 61427 - photovoltaic energy systems
  • DIN 40736 - specification OPzS cells
  • DIN 43539T5 - deep discharge
  • DIN 40740 - electrolyte level indicator
  • IEC 60896 Part 11 - vented types requirements & tests
  • ISO 9001 - Quality Management System
  • ISO 14001- Environmental Management System
 Electrical Characteristics
  • Nominal voltage: 2 V/cell
  • Float voltage charge at 20°C: 2.23 V/cell
  • Boost charge: 2.4 V/cell
  • Renewable energy
  • Phone stations
  • BTS systems
  • Water systems
  • Signaling systems