APC UPS RBC43 Replacement battery
16x CSB HR1221W F2 terminal
HR1221W 12V 21W(5Ah)
HR1221W is a general purpose battery up to 5 years in standby service or more than 260 cycles at 100% discharge in cycle service.
As with all CSB batteries, all are rechargeable, highly efficient, leak proof and maintenance free.
||21W @ 15 minute-rate to 1.67V per cell @ 25°C (77°F)
||Approx. 1.8kg. (3.97 lbs.)
|Maximum Discharge current
|Internal Resistance Approx.
|Operating Temperature Range
|Nominal Operating Temperature Range
||25°C ± 3°C (77°F ± 5°F)
|Float charging voltage
||13.5 to 13.8 VDC/unit Average at 25°C (77°F)
|Recommended Maximum Charging current limit
|Equalization and Cycle Service
||14.4 to 15.0 VDC/unit Average at 25°C (77°F)
||It should be more than 75% of the capacity that before storage after stocked for 6 months at ambient temp. 25℃
||ABS(UL94-HB) & Flammability resistance of(UL94-V0) can be available upon request.