Sunlight RES OPzS

Making energy from renewable sources available at anytime.

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Sunlight RES OPzS range - advanced lead-acid battery

Excellent cycling performance

Ideal solution for demanding renewable energy storage applications.

Minimum maintenance

Reduced water topping up requirements & wide range of vent plugs with optional flame arrestor.

Optimum design

For increased robustness and durability.

Sunlight RES OPzS range is an advanced lead-acid battery series for energy storage systems.

Sunlight RES OPzS

Sunlight RES OPzS cells and blocks store energy from renewable energy sources (RES), making clean energy available at the right time. They contribute to the expansion of sustainable energy, by giving permanent solutions to the potential volatility of RES. They balance the customers’ generation and demand profiles, and support the transition towards sustainable energy.

Sunlight RES OPzS range - advanced lead-acid battery

Technical features

Positive Plates


Plate Alloy

Lead Low Antimony

Positive Active Mass

Red Lead made from 99.99% Pure Lead

Negative Active Mass

Inhouse Production of Lead Oxide


Transparent SAN


ABS (cells) / SAN (blocks)


Highly Porous Leaf


Non Wooven

Bottom Bar

Ultrasonic Welding


Sliding Insulated Pole (M10)


Insulated Flexible Bolt-on


Plastic Headed Bolt

Airlift System


Cycle Life

up to 2800 Cycles (50% DoD & 20 °C)

Operating Temperature

-20 to 55 °C


Long cycle life

Operational safety

Reliability and sustained performance

Fully recyclable product, circular economy enabler

Certified Quality

  • DIN 40736-1

  • DIN 40737-3

  • IEC 62485-2

  • IEC 60896-11

  • IEC 61427

  • UL 1989*

*cells equipped with ceramic plug, ceramic funnel plug and recombination plug

Product leaflet