CSB GPL12750 12V 75Ah Valve-Regulated Sealed Lead-Acid Battery
As a member of the GPL series, the CSB GPL12750 is a 12V valve-regulated sealed lead-acid battery that delivers a nominal capacity of 75Ah at the 20-hour rate. It features AGM technology and a pure lead construction, is maintenance-free, and is designed for general-purpose float standby power applications.
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Product Features
- Valve-regulated lead-acid (VRLA) design
- Absorbent glass mat (AGM) technology, maintenance-free, with gas recombination efficiency up to 99%
- Pure lead plates with proprietary formulation elements
- Suitable for float-charge standby power applications
- Manufactured in compliance with IEC 60896-21/22:2004 and UL1989 certified (MH14533)
Application Scenarios
- Backup power for security alarm panels
- Emergency lighting and exit signs
- Backup power for medical monitors and infusion pumps
- Access control systems and building intercom equipment
- Fire alarm linkage control panels
- Small electronic instruments and testing devices
Product parameters
- Model：GPL12750
- Voltage：12 Vdc
- Nominal Capacity：75 Ah @20hr-rate
- Ah Capacity：75.04 (8-Hr 1.75 VPC @ 25°C)
- Ah Capacity：80.80 (20-Hr 1.75 VPC @ 25°C)
- Ah Capacity：73.36 (8-Hr 1.80 VPC @ 25°C)
- Max. Charge Current：22.50 A
- Max. Discharge Current：800 A
- Short Circuit Current：1933 A
- Internal Resistance：4.0 mΩ
- Terminal Type：I2 thread lead alloy terminal to accept M6 bolt
- Terminal Torque：51.7±10.3 Kgf·cm / 44.9±9.0 Lbf·in / 5.10±1.0 N·m
- Container Material：PP (UL 94-HB) standard, flame-retardant (94-V0) available upon request
- Weight：25.60 / 56.42 kg / lb.
- Length (L)：261.0±2.5 / 10.28±0.10 mm / in
- Width (W)：168.5±2.0 / 6.63±0.08 mm / in
- Height (H)：213.5±2.5 / 8.41±0.10 mm / in
- Design Life：Up to 10 years in standby service at 25°C; Eurobat (20°C): >12 years, Very Long Life
- Float Charging Voltage：13.5 - 13.8 Vdc/battery
- Equalizing Charging Voltage：14.4 - 15.0 Vdc/battery
- Operating Temperature：discharge -15°C to 50°C; charge/storage -15°C to 40°C
Product details
The CSB GPL12750 is a product in the GPL series. It is a 12V top-terminal valve-regulated sealed lead-acid battery, officially positioned for general-purpose applications, and is the version of the GP series designed to extend service life. The battery uses a valve-regulated sealed lead-acid structure and absorbed glass mat (AGM) technology, with a gas recombination efficiency of up to 99%. It also features a pure lead construction and a proprietary element design, making it suitable for float standby power applications, and it is maintenance-free. The product is manufactured in accordance with IEC 60896-21/22:2004 and has obtained UL1989 recognition (MH14533).
In terms of capacity parameters, at 25°C and 1.75VPC, the GPL12750 has a nominal 20-hour rate capacity of 75Ah, and its measured 20-hour rate capacity reaches 80.80Ah. At the 8-hour rate, the 1.75VPC capacity is 75.04Ah, and the 1.80VPC capacity is 73.36Ah. Electrical characteristics also include: maximum charging current 22.50A, maximum discharge current 800A, short-circuit current 1933A, and internal resistance 4.0 mΩ. Together, these values outline the battery's basic electrical performance in general-purpose standby power systems.
Regarding charging and temperature conditions, at 25°C the float charging voltage range is 13.5 to 13.8 Vdc/battery, and the equalization charging voltage is 14.4 to 15.0 Vdc/battery. For operating temperature, the nominal temperature is 25°C, the allowable discharge range is -15°C to 50°C, and the charging and storage range is -15°C to 40°C. In terms of self-discharge, it is less than 10% after 90 days, and it can be stored for up to 6 months at 25°C; it must be fully charged before use. If the storage temperature exceeds 25°C, it needs to be charged earlier.
In terms of structural design, the GPL12750's case uses PP material (UL 94-HB), and a flame-retardant 94-V0 version can also be provided as needed. The terminals are I2 threaded lead alloy terminals that can accept M6 bolts, with terminal torque of 51.7±10.3 Kgf·cm, 44.9±9.0 Lbf·in, or 5.10±1.0 N·m. The external dimensions are length 261.0±2.5 mm, width 168.5±2.0 mm, and height 213.5±2.5 mm, with a weight of 25.60 kg (56.42 lb). In terms of design life, it can reach 10 years under 25°C float charging conditions, and according to the Eurobat 20°C standard it is greater than 12 years, placing it in the very long life category.
Overall, the GPL12750 combines 12V voltage, 75Ah nominal capacity, and AGM valve-regulated sealed technology, making it suitable for general-purpose float standby power applications. Its maintenance-free characteristics, pure lead construction, and clearly defined charging voltage and temperature ranges facilitate configuration and maintenance in standby power systems. In actual use, users should operate according to the float and equalization charging voltages given in the documentation and pay attention to the effect of storage temperature on charging timing to ensure that the battery maintains normal operating condition.
