BAE OGi block batteries are robust lead-acid batteries optimised for high discharge performance and are particularly suitable for bridging times ranging from a few minutes up to one hour.

They are used for uninterruptible power supplies (UPS), as starter batteries for emergency diesel generator sets, and for standby power supply in data and signalling systems for transport infrastructure, switchgear installations of utility companies, and other applications.

Construction

Positive electrode
Round grid plate with circular grid bars 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), impact-resistant

Lid
SAN, grey-coloured

Blocks with blind cells
4 V, 6 V, 8 V, 10 V

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

Float charge current
20 mA/100 Ah up to a maximum of 60 mA/100 Ah at end of service life

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

Charging time to 92%
6 hours at 1.5 × I10 initial current, 2.23 V/cell, after 80% C3 discharge

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 block voltages and temperatures
• Every 12 months: Record battery voltage, block voltages and temperatures

Operating Characteristics

Service life
16 years at 20 °C

Water topping-up interval
More than 3 years

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

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

Dimensions according to
DIN 40 737 Part 3

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.