CSB HRL1250W 12V 50W VRLA Battery
The CSB HRL1250W is part of the HRL long-life high-rate pure lead series. It is a 12V VRLA battery with a nominal capacity of 50W @15min-rate, suitable for data center UPS and other float standby applications.
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Product Features
- Valve-regulated lead-acid (VRLA) design
- Maintenance-free, utilizing absorbed glass mat (AGM) technology with up to 99% gas recombination efficiency
- Pure lead construction with proprietary elements
- Developed for high-rate UPS and float standby power applications
- Manufactured to IEC 61056-1/2:2012 and UL1989 certified (MH14533)
Application Scenarios
- Backup power for large data center UPS
- Standby power for high-voltage DC systems in cloud computing centers
- Uninterruptible power support for financial trading systems
- Emergency power protection for telecommunications hub UPS
- High-power backup for industrial automation UPS
- Backup power for rail transit signaling UPS
Product parameters
- Model：HRL1250W
- Voltage：12 Vdc
- Nominal Capacity：50W @15min-rate
- Watts per Cell：102 (5-Min 1.67 VPC @ 25°)
- Watts per Cell：51.0 (15-Min 1.67 VPC @ 25°)
- Max. Charge Current：5.0 A
- Max. Discharge Current：130 A
- Internal Resistance：15.0 mΩ
- Terminal Type：F2 terminal (Faston Tab 250)
- Container Material：ABS (UL 94-HB) standard, flame-retardant (94-V0) available upon request
- Weight：3.90 / (8.60
- Length (L)：151.0±2.0 / 5.94±0.08 mm / in
- Width (W)：98.0±1.0 / 3.00±0.08 mm / in
- Height (H)：100.3±1.5 / 3.95±0.06 mm / in
- Design Life：Up to 8 years in standby service at 25°C; Eurobat (20°C): 10-12 years, Standard Commercial
- 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 HRL1250W is a 12Vdc VRLA battery from CSB's HRL series, a line of long-life high-rate pure lead batteries developed specifically for high-power data center and UPS loads, with data center UPS as the officially designated application. The battery uses a valve-regulated sealed construction with absorbed glass mat technology, achieving gas recombination efficiency of up to 99%, and features pure lead construction with a proprietary formulation, making it suitable for high-rate UPS and float standby power applications.
In terms of capacity and power, the HRL1250W has a nominal capacity of 50W @15min-rate; at 1.67 VPC and 25°C, the 5-minute power is 102 W/cell and the 15-minute power is 51.0 W/cell. Its maximum charge current is 5.0 A, maximum discharge current is 130 A, and internal resistance is 15.0 mΩ. These values help assess battery performance in short-duration high-power discharge scenarios.
For charging parameters, at 25°C the float voltage ranges from 13.5 to 13.8 Vdc/battery, and the equalize voltage is 14.4 to 15.0 Vdc/battery. Self-discharge characteristics: stored at 25°C for 90 days, capacity loss is less than 10%, with a maximum storage of 6 months; the battery must be fully charged before use, and if storage temperature exceeds 25°C, recharge is required sooner. For operating temperature, the nominal temperature is 25°C, the discharge temperature range is -15°C to 50°C, and the charge and storage temperature range is -15°C to 40°C.
In terms of physical specifications, the HRL1250W measures 151.0±2.0 mm in length, 98.0±1.0 mm in width, and 100.3±1.5 mm in height, weighs 3.90 kg, and uses an F2 terminal - Faston Tab 250. The case is made of ABS (UL 94-HB) material, with a flame-retardant (94-V0) version available upon request. Design life reaches 8 years in 25°C float standby service, while the Eurobat (20°C) standard commercial life is 10 to 12 years.
The battery is manufactured to IEC 61056-1/2:2012 and is UL1989 recognized (MH14533). The maintenance-free design combined with high-rate discharge capability enables the HRL1250W to handle applications such as data center UPS that require float standby and short-duration high-power output, providing reliable backup power for equipment.
