Victron Energy OPzS batteries is used to refer to a flooded type of tubular-plated, lead acid, deep cycle batteries. These batteries, generally have a cell voltage of 2 volts and are connected in series to produce higher voltages.
These types of batteries are generally vented and are used in stationary applications like; solar, wind and backup energy storage. They contain a liquid electrolyte which is generally composed of diluted sulfuric acid.
OPzS stands for : O = Ortsfest (stationary) Pz = PanZerplatte (tubular plate) S = Flüssig (flooded)[1]
OPzS batteries are often time referred to as traction batteries. A variant of these types of batteries that are valve regulated and have gel electrolyte are called OPzV. These are a maintenance free variant of OPzS.
Long life flooded tubular plate batteries
Design life: >20 years at 20°C, >10 years at 30°C, >5 years at 40°C. Cycling expectancy of up to 1500 cycles at 80% depth of discharge. Manufactured according to DIN 40736, EN 60896 and IEC 896-1.
Low maintenance
Under normal operating conditions and 20°C, distilled water has to be added every 2 – 3 years.
Dry-charged or ready for use electrolyte filled
The Victron Energy OPzS batteries are available filled with electrolyte or dry-charged (for long term stocking, container transport or air transport). Dry charged batteries have to be filled with diluted sulfuric acid (density 1,24kg/l @ 20°C). The electrolyte may be stronger for cold- or weaker for hot climates.
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