OPzS battery — vented tubular, 20-year design life
Vented tubular (OPzS) batteries from Eternity Technologies, compliant with DIN 40736-1 and built to EUROBAT standards for long-life standby and solar duty.

Eternity OPzS
OPzS cells use a tubular positive plate with low-antimony alloy for extended watering intervals. Moist-charged delivery allows safe transport and long storage, and the battery needs no commissioning charge on installation.
Applications: oil & gas, power plants & substations, petrochemical plants, industrial UPS and DC systems.
Ask about OPzS Battery on WhatsAppHigh-quality battery, built to EUROBAT standards.
For industrial applications — oil & gas, power plants & substations, petrochemical plants and UPS systems.
- Member of EUROBAT — Association of European Automotive and Industrial Battery Manufacturers
- EUROBAT design-life class “Long Life” (> 12 years)
- ISO-certified manufacturing · ISO/IEC 17025 accredited test laboratory
- IEC compliant · UL-certified OPzV range
Certified EUROBAT member
Eternity Technologies is a member of EUROBAT, the Association of European Automotive and Industrial Battery Manufacturers. OPzV / OPzS cells meet the EUROBAT “Long Life” design-life class (> 12 years).
Battery services
From sizing to replacement.
- Battery sizing
Capacity calculation to IEEE 485 for your load and autonomy. - Battery replacement & installation
Removal of old banks, installation and commissioning of new cells. - Capacity testing
Discharge testing with digital dummy load per IEC 60623. - Preventive maintenance
Inspection, cell voltage and connection checks, reporting.
Replacing an existing battery bank?
Send the existing battery type, capacity and DC voltage. We’ll propose a matching battery and installation plan.