CSB HR1221W Batteries

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CSB HR1221W Summary:

The CSB HR1221W battery is specially designed for high efficient discharge application. Its characteristics are small volume, light weight and high discharge efficiency. It can be used for more than 260 cycles at 100% discharge in cycle service, or three to five yeas in standby service.

CSB HR1221W General Specifications:

Cells Per Unit: 6

Voltage Per Unit: 12V

Capacity: 21W @ 5min-rate to 1.60V per cell

Weight: 1.8 kg, 3.97 lbs

Maximum Discharge Current: 60/90A (5sec)

Internal Resistance: 23.0 mΩ

Nominal Operating Temperature Range: 25°C, 77°F

Float Charging Voltage: 13.5 to 13.8 VDC/unit

Recommended Maximum Charging Current Limit: 2.1A

Equilization Charging Voltage:14.4 to 15.0 VDC/unit

Self Discharge: It should be more than 75% of the capacity that before storage after stocked for 6 months at ambient temp. 25℃

Terminal: F1/F2- Faston Tab 187

Container Material:ABS (UL94-HB) & Flame Retardant (94-v0) available upon request

Additional Details


  • Emergency Lighting
  • Security & Alarms


  • AGM (VRLA)