CSB 12V 21W VRLA BATTERY HR1221W

Cells Per Unit6Voltage Per Unit12 VCapacity21W @ 15 minute-rate to 1.67V per cell @ 25°C (77°F)WeightApprox. 1.8kg. (3.97 lbs.)Maximum Discharge current60/90A (5sec.)Internal Resistance Approx.Approx. 23.0mΩOperating Temperature RangeDischarge：-15℃~50℃(5°F~122°F)
Charge：-15℃~40℃(5°F~104°F)
Storage：-15℃~40℃(5°F~104°F)Nominal Operating Temperature Range25°C ± 3°C (77°F ± 5°F)Float charging voltage13.5 to 13.8 VDC/unit Average at 25°C (77°F)Recommended Maximum Charging current limit2.1AEqualization and Cycle Service14.4 to 15.0 VDC/unit Average at 25°C (77°F)Self DischargeIt should be more than 75% of the capacity that before storage after stocked for 6 months at ambient temp. 25℃TerminalF1/F2-Faston Tab187/250Container MaterialABS(UL94-HB) & Flammability resistance of(UL94-V0) can be available upon request.