GPL12750 12V 75Ah Valve-Regulated Sealed Lead-Acid Battery CSB
GPL12750 is a 12V valve-regulated sealed lead-acid battery in CSB's GPL product line. It uses AGM absorbent glass mat technology and pure lead construction, and is maintenance-free. Its nominal capacity at the 20-hour rate is 75Ah, and it is mainly used for general-purpose float standby power supply.
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Product Features
- This product is a valve-regulated lead-acid (VRLA) battery
- With AGM (absorbent glass mat) technology, it is maintenance-free and has a gas recombination efficiency of up to 99%
- The construction uses pure lead and incorporates proprietary elements
- Designed for float standby power applications
- The manufacturing process complies with IEC 60896-21/22:2004 and is UL1989 recognized (MH14533)
Application Scenarios
- Backup power for security alarm control panels
- Emergency lighting and evacuation signs
- Backup power for medical monitors and infusion pumps
- Building intercom systems and entrance/exit access control
- Backup power for linkage control panels and fire alarm systems
- Detection devices and small electronic instruments
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
GPL12750 belongs to CSB's GPL product line. It uses a 12V top-terminal valve-regulated sealed lead-acid construction and is manufactured in accordance with IEC 60896-21/22:2004, and has UL1989 recognition (MH14533). This model is positioned for general-purpose applications; within the GP series, it is an extended-life model designed for longer service life. Internally, it consists of AGM absorbent glass mat technology, pure lead material, and a proprietary element formulation. Gas recombination efficiency is up to 99%. It is suitable for float standby power supply and requires no maintenance.
Electrical data: maximum charge current is 22.50A, maximum discharge current is 800A, short-circuit current is 1933A, and internal resistance is 4.0 mΩ. In terms of capacity, at 25°C and 1.75VPC, the nominal 20-hour rate capacity is 75Ah, and the measured 20-hour rate capacity is 80.80Ah; at the 8-hour rate, the 1.75VPC capacity is 75.04Ah and the 1.80VPC capacity is 73.36Ah. These values reflect the battery's basic electrical characteristics in general-purpose standby power systems.
Temperature range: nominal 25°C; discharge can cover -15°C to 50°C; charging and storage are -15°C to 40°C. Charging settings: at 25°C, float charge voltage is 13.5 to 13.8 Vdc/battery, and equalization charge voltage is 14.4 to 15.0 Vdc/battery. Self-discharge is less than 10% after 90 days; it can be stored for up to 6 months at 25°C and must be fully charged before use; if storage temperature exceeds 25°C, charge earlier.
Dimensions are length 261.0±2.5 mm, width 168.5±2.0 mm, height 213.5±2.5 mm; weight 25.60 kg (56.42 lb). Under 25°C float charge use, design life can reach 10 years; per the Eurobat 20°C standard, it is greater than 12 years, placing it in the ultra-long-life class. Case material is PP (UL 94-HB); a flame-retardant 94-V0 version can also be provided on request. Terminals are I2 threaded lead alloy type, accept M6 bolts, and have a torque of 51.7±10.3 Kgf·cm, 44.9±9.0 Lbf·in, or 5.10±1.0 N·m.
Overall, GPL12750 combines 12V voltage, 75Ah nominal capacity, and an AGM valve-regulated sealed design to serve general-purpose float standby power supply. Maintenance-free, pure lead construction, together with clear charge voltages and temperature ranges, make it easier to configure and maintain in standby power systems. During operation, users should set float and equalization voltages according to the data, and pay attention to how storage temperature affects charging timing, so the battery remains in normal condition.
