Terminal Type Drawing: F1-F20

Terminal Position (Polarity): A-L

Frequently Asked Questions

What is an OPzS battery and how does it differ from ordinary VRLA batteries?

An OPzS battery is a vented flooded cell that pairs tubular positive plates with free liquid electrolyte. Unlike sealed AGM or gel designs, the acid is not immobilized, which keeps internal resistance low and allows routine topping-up, so the cells tolerate frequent deep discharges over a very long service life.

What applications are OPzS batteries designed for?

They are specified for switchgear tripping, power plant and substation control, railway signaling, renewable energy storage and other installations that cycle deeply every day and need dependable standby capacity for decades in a 2V cell format.

What electrolyte maintenance do OPzS batteries require?

As flooded cells they need periodic inspection of electrolyte level and topping-up with demineralized water, plus checks on float voltage, temperature and terminal corrosion. Transparent containers or level indicators make these checks quick, and correct watering preserves the long cycle life the tubular plates provide.

How do I choose between OPzS and OPzV batteries?

Both carry the same long-life tubular plates. OPzS suits sites with trained staff where flooded cells are acceptable and lowest cost per cycle matters, while OPzV is the choice when a sealed maintenance-free gel battery is required or when spillage risk must be eliminated.

What design float life do OPzS batteries offer?

With correct charging and regular maintenance, tubular plate flooded OPzS cells are typically designed for around 15-20 years of float service and more than 1500 deep cycles at 80% depth of discharge, subject to ambient temperature and charging accuracy.