KL 11 P GAZ batteries KL Battery Range

KL 11 P GAZ batteries

GAZ® Ni-Cd batteries are built to withstand mechanical and electrical stress as well as extreme temperatures. Their ruggedness makes them ideal for deployment in challenging conditions such as oil and gas, excavation, transmission and refineries, utility power generation and transmission and distribution, substations, telecom installations, or
transportation infrastructure.

With their design lifespan exceeding 20 years and minimal maintenance requirements, GAZ® Ni-Cd batteries offer unparalleled reliability whenever the risk of failure is unacceptable. They provide backup power for all kinds of critical installations even in the most extreme conditions and remote locations. Industrial facilities, large data centers, commercial buildings, hospitals, airport infrastructure, all rely on GAZ® Ni-Cd batteries.

Their durability and high discharge rate performance makes GAZ® Ni-Cd batteries particularly suitable for inrush applications such as cranking generators or switching on heaters, circulation pumps, and similar unpredictable, time-sensitive, high-power demanding critical applications that should perform even at extreme temperatures. GAZ batteries recover their voltage instantaneously unlike ‘Coup de Fouét’ phenomenon for other electro-chemistry, making
them the ideal choice for such inrush applications.

• O&G on-shore, off-shore exploration and refineries
• Power Generation-Transmission-Distribution
• Utility Substations, Switch-Gear and Control-Gear operations
• Emergency lighting
• Communication systems – SCADA
• DC UPS systems
• Critical processes input power regulation
• Track-side applications, railway signaling
• Security-Alarm systems
• Gen-set / Engine-starting power

GAZ VENTED KL BATTERY RANGE

This GAZ® cell type has been especially designed for low rates of discharge over long periods, i.e. the current is relatively low in comparison with the total stored energy. The discharges
can generally be infrequent and the recommended discharge time for the KL range is above 3 hours.

The nominal C5 capacity (as per IEC 60623) of KL range batteries is based on the available ampere hours (Ah) at a discharge of 5 hours to a final discharge voltage of 1.00 V per cell at 20 +/- 5*c

Nominal voltage per cell
1.20 V per cell

Discharging conditions
The discharge performances as well as the nominal capacities
C5 given in this brochure are only valid for fully charged cells in accordance with IEC 60623 und EN 60623, clause number 7.3.2

Charging Recommendation – KL Range
A. Constant Voltage (FCBC Chargers)
Recommendation for Stand-by Application

Boost Mode
Boost Voltage: 1.55 – 1.70 V/Cell
Boost Current Limit: 0.2 lt A dc

Float Mode
Float Voltage: 1.40 – 1.42 V/Cell
Float Current: 1 to 2 mA/Ah cell capacity

Delay for switch from Boost to Float
Boost Current ramped < 0.004 It A

Single level Charging
1.47–1.50 V/cell

B. Constant Current mode

Charging for IEC Capacity Test
Constant Current: 0.2 lt A dc for 8 h
Alternatively, 0.1 It A dc CC for 16 h
Voltage Limit: No Voltage limit
Charging Temperature: 20 +/- 5*c

Fast Charging at 25*c

Boost Charge: 0.3 lt A for 2.5 h followed by 0.2 lt A for 2.5 h
Trickle charge: 0.001 – 0.002 A/Ah