HR1221W 12V VRLA-AGM High-Rate 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：HR1221W
Voltage：12 Vdc
Nominal Capacity：21W @15min-rate
Watts per Cell：52.5 (5-Min 1.67 VPC @ 25°)
Watts per Cell：25.0 (15-Min 1.67 VPC @ 25°)
Max. Charge Current：2.10 A
Max. Discharge Current：90 A
Short Circuit Current：249 A
Internal Resistance：23.0 mΩ
Terminal Type：F2 terminal (Faston Tab 250)
Container Material：ABS (UL 94-HB) standard, flame-retardant (94-V0) available upon request
Weight：1.80 / 3.97 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 = 60 A

Product details

The CSB HR1221W is a 12V valve-regulated sealed lead-acid battery using AGM technology and pure lead construction, belonging to the HR series of high-rate discharge pure lead batteries, officially positioned for smaller-output UPS and fast-discharge standby applications. Its nominal capacity is expressed as 21W at the 15-minute rate at 1.67 VPC, 25°C, with a 5-minute rate power of 52.5 W/cell and a 15-minute rate power of 25.0 W/cell, suitable for float standby occasions requiring short-duration high-power output. In terms of electrical parameters, the HR1221W has a float charge voltage of 13.5 to 13.8 Vdc/battery (25°C), an equalizing charge voltage of 14.4 to 15.0 Vdc/battery (25°C), a maximum charge current of 2.10 A, a maximum discharge current of 90 A, a short-circuit current of 249 A, and an internal resistance of 23.0 mΩ. The nominal operating temperature of the battery 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. Regarding self-discharge, the remaining capacity after 90 days of storage at 25°C is greater than 90%, and it can be stored for up to 6 months; it must be fully charged before use, and if the storage temperature is above 25°C, it should be charged sooner. The terminal type of the HR1221W is F2-Faston Tab250, the case material is ABS (UL 94-HB), and a flame-retardant (94-V0) version can be provided upon request. The dimensions are length 90.0±1.0 mm, width 70.0±1.0 mm, height 106.1±1.5 mm, and weight approximately 1.80 kg (3.97 lb). The design life can reach 5 years under float service at 25°C, and 3 to 5 years at 20°C under the Eurobat standard. This battery adopts a valve-regulated sealed lead-acid design, is maintenance-free, and AGM technology can achieve up to 99% gas recombination efficiency, suitable for high-rate UPS and float standby power applications. The product is manufactured in accordance with IEC 61056-1/2:2012 and recognized under UL1989 (MH14533). Its official application area is data center UPS, providing short-duration high-power backup support for data center uninterruptible power supply systems.