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

Product Features

Valve Regulated Lead Acid (VRLA) Battery
Maintenance-Free, Absorbent Glass Mat (AGM) Technology for Efficient Gas Recombination of up to 99%
Pure Lead Construction and Proprietary Elements
Designed for High-Rate UPS, Float Service Standby Power Applications
Built in Accordance with IEC 61056-1/2:2012 and UL1989 Recognized (MH14533)

Application Scenarios

Small and medium data center UPS backup
Server rack uninterruptible power supply
Network room emergency power protection
Medical imaging equipment UPS backup
Industrial control UPS fast discharge
Laboratory precision instrument backup power

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

The CSB HR1227W belongs to the HR series and is a 12V top terminal valve-regulated sealed lead-acid battery. It uses absorbed glass mat (AGM) technology, achieving up to 99% gas recombination efficiency, and with a pure lead construction and proprietary formulation, it is designed for high-rate discharge and float standby power applications. This model is officially positioned as part of the high-rate discharge pure lead battery series, suitable for UPS with lower output power and fast-discharge standby scenarios, with the official application area being data center uninterruptible power supplies. In terms of electrical parameters, the HR1227W has a voltage of 12 Vdc, and a nominal capacity of 27W @15min-rate at 1.67 VPC, 25°C. Its 5-minute rate power is 53.0 W/cell, and its 15-minute rate power is 27.0 W/cell, both at 1.67 VPC, 25°C. The maximum charging 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 is 13.5 to 13.8 Vdc/battery (25°C), and the equalizing charge voltage is 14.4 to 15.0 Vdc/battery (25°C). In terms of construction and dimensions, the battery terminal type is F2-Faston Tab250, the case material is ABS (UL 94-HB), and a flame-retardant 94-V0 version is available upon request. The weight is 1.97 kg (4.34 lb), the length is 90.0±1.0 mm, the width is 70.0±1.0 mm, and the height is 106.1±1.5 mm. The design life can reach 5 years under 25°C float charge service conditions, and 3 to 5 years per the Eurobat (20°C) standard for commercial use. In terms of operating temperature, the nominal temperature is 25°C (77°F), the discharge temperature range is -15°C to 50°C (5°F to 122°F), and the charging and storage temperature range is -15°C to 40°C (5°F to 104°F). In terms of self-discharge, it is less than 10% after 90 days at 25°C, and it can be stored at 25°C for up to 6 months, requiring a full charge before use; if the storage temperature is above 25°C, it should be charged sooner. This battery is maintenance-free, manufactured in accordance with IEC 61056-1/2:2012, and recognized under UL1989 (MH14533). With high-rate discharge characteristics and stable float performance, the HR1227W is suitable for applications such as data center UPS that require fast discharge and standby power, and can maintain reliable operation under the specified float charge voltage and temperature conditions.