CSB HR1227W 12V 27W VRLA-AGM Battery High-Rate Discharge Type

Product Features

Valve-regulated lead-acid (VRLA) design
Absorbent glass mat (AGM) technology, maintenance-free, with gas recombination efficiency up to 99%
Pure lead construction with proprietary elements
Suitable for high-rate UPS and float standby power applications
Manufactured to IEC 61056-1/2:2012 and UL1989 certified (MH14533)

Application Scenarios

Backup UPS for small and medium data centers
Uninterruptible power supply for server racks
Emergency power for network equipment rooms
Uninterruptible power backup for medical imaging equipment
High-rate discharge for industrial control UPS
Backup power for precision laboratory instruments

Product parameters

Model：HR1227W
Voltage：12 Vdc
Nominal Capacity：27W @15min-rate
Watts per Cell：53.0 (5-Min 1.67 VPC @ 25°)
Watts per Cell：27.0 (15-Min 1.67 VPC @ 25°)
Max. Charge Current：2.70 A
Max. Discharge Current：130 A
Short Circuit Current：424 A
Internal Resistance：19.9 mΩ
Terminal Type：F2 terminal (Faston Tab 250)
Container Material：ABS (UL 94-HB) standard, flame-retardant (94-V0) available upon request
Weight：1.97 / 4.34 kg / lb.
Length (L)：90.0±1.0 / 3.54±0.04 mm / in
Width (W)：70.0±1.0 / 2.76±0.04 mm / in
Height (H)：106.1±1.5 / 4.18±0.06 mm / in
Design Life：Up to 5 years in standby service at 25°C; Eurobat (20°C): 3-5 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
Note：F1 terminal is available; Max Discharge Current = 100 A

Product details

In CSB's product line, the HR1227W belongs to the HR series and is a 12V valve-regulated sealed lead-acid battery with top terminal design. It uses absorbent glass mat (AGM) technology, with gas recombination efficiency of up to 99%; combined with pure lead construction and a proprietary formula, this battery is built for high-rate discharge and float standby power scenarios. As a model in this high-rate discharge pure lead battery series, it is officially aimed at UPS with lower output power and fast-discharge standby needs, with data center uninterruptible power supplies as its official application direction. In terms of electrical specifications, the HR1227W voltage is 12 Vdc; at 1.67 VPC, 25°C, its nominal capacity is 27W at the 15-minute rate. Also at 1.67 VPC, 25°C, the 5-minute rate power is 53.0 W/cell, and the 15-minute rate power is 27.0 W/cell. The maximum charge current is 2.70 A, the maximum discharge current is 130, the short-circuit current is 424 A, and the internal resistance is 19.9 mΩ. The float charge voltage requires 13.5 to 13.8 Vdc/battery (25°C), and the equalization charge voltage is 14.4 to 15.0 Vdc/battery (25°C). In terms of construction and dimensions, the battery is equipped with F2-Faston Tab250 terminals, and the case uses ABS material (UL 94-HB); a flame-retardant 94-V0 version can also be provided if required. Its weight is 1.97 kg (4.34 lb), with a length of 90.0±1.0 mm, a width of 70.0±1.0 mm, and a height of 106.1±1.5 mm. For design life, it can last up to 5 years under 25°C float charge conditions; according to the Eurobat (20°C) standard, the commercial life is 3 to 5 years. For operating temperature, the nominal temperature is 25°C (77°F); the allowable discharge range is -15°C to 50°C (5°F to 122°F), and charging and storage are between -15°C and 40°C (5°F to 104°F). For self-discharge rate, it is less than 10% after 90 days of storage at 25°C; the battery can be stored at 25°C for up to 6 months, but must be fully charged before use. If the storage temperature exceeds 25°C, charging is required earlier. This battery is maintenance-free, manufactured according to IEC 61056-1/2:2012, and recognized under UL1989 (MH14533). With high-rate discharge capability and stable float charge performance, the HR1227W is well suited for data center UPS and other applications requiring fast discharge and standby power; under the specified float charge voltage and temperature conditions, it can maintain reliable operation.