BAE OPzS batteries are among the longest-lasting lead-acid batteries. They are highly suitable for both standby parallel operation and capacitive loads.

They are ideally suited for bridging times from 1 hour up to more than 10 hours. Typical applications include standby power supply for telecommunications equipment, microwave radio stations and industrial installations, as well as safety power systems in accordance with VDE 0107 and VDE 0108.

Construction

Positive electrode
Tubular plate with polyester gauntlet and solid grids made of corrosion-resistant PbSb1.6SnSe alloy

Negative electrode
Grid plate in low-antimony alloy with long-life expander

Separation
Microporous separator

Electrolyte
Sulphuric acid with a density of 1.24 kg/l

Container
Transparent SAN (styrene-acrylonitrile) in proven battery quality

Lid
SAN, grey-coloured

Plugs
Labyrinth plugs for aerosol retention; optionally ceramic plugs or ceramic funnel plugs in accordance with DIN 40 740

Terminal bushing
100% gas- and electrolyte-tight, sliding, plastic-overmolded tank pole

Terminal design
M10 brass insert

Connectors
Insulated copper busbars with cross-sections of 90, 150 or 300 mm² or flexible insulated copper cables with cross-sections of 35, 50, 70, 95 or 120 mm²

Protection class
IP25 according to DIN 40 050, protection against accidental contact in accordance with VBG 4

Charging

IU characteristic curve
Maximum current (Imax) possible without limitation

Float charge current
15 mA/100 Ah, increasing to 30 mA/100 Ah at end of service life

Boost charge
2.35 to 2.40 V/cell, time-limited

Charging time to 90%
6 hours at 1.5 × I10 initial current, 2.23 V/cell, after 80% C3 discharge

Float charge voltage
2.23 V/cell ±1% between 10 °C and 55 °C
Temperature compensation: −0.003 V/K below 10 °C (monthly average)

Discharge Characteristics

Reference temperature
20 °C

Initial capacity
100%

Depth of discharge
Normally up to 80%

Deep discharge
Discharges beyond 80% and below the current-dependent end-of-discharge voltages must be avoided

Maintenance

• Every 6 months: Check battery voltage, pilot cell voltages and temperatures
• Every 12 months: Record battery voltage, cell voltages and temperatures

Operating Characteristics

Service life
20+ years at 20 °C

Water topping-up interval
More than 3 years at 20 °C

Self-discharge
Approx. 3% per month at 20 °C

Operating temperature
-20 °C to +55 °C
Recommended: 10 °C to 30 °C

Battery in accordance with
DIN 40 736 Part 1

Standards and Safety

Testing standards
IEC 60896-11

Safety standard / ventilation
DIN EN 50272-2

Delivery

Batteries are not subject to ADR regulations (road transport), provided the conditions of Special Provision 598 (Chapter 3.3) are met.