19Ah LifePo4 Lithium Battery With Longer Cyclelife For House Energy Storage System,UPS ,back up power
Specifications:
Item | Specification |
Nominal Capacity | 19Ah ,0.5C discharging(25±2℃) |
Nominal Voltage | 3.2V |
Charge Ending Voltage | 3.65V |
Discharge Ending Voltage | 2.0V(≥0℃) 1.6V(< 0℃) |
Standard Charging Method | 25±2℃ 0.5C constant current charge to 3.65V, then constant voltage 3.65V charge till charged current declines to ≤ 0.05C |
Standard Discharging Method | 25±2℃ 0.5C constant current discharge to 2.0V |
Max. Pulse Charging Current | 1.5C (15℃~45℃, 50%SOC )≤30S |
Max. Pulse Discharging Current | 2C (15℃~45℃, 50%SOC)≤60S |
Operating environment | Charging:0℃-55℃, max.90%RH Discharging: -30℃-55℃, max.90%RH |
Impedance | <2.5mΩ |
Cell Weight (Not include PCB) | 0.369±0.015 kg |
Weight energy density | 170Wh/Kg |
Volume energy density | 357Wh/L |
Lithium Iron Phosphate (LiFePO4)
Li-phosphate offers good electrochemical performance with low resistance. The key benefits are high current rating and long cycle life, besides good thermal stability, enhanced safety and tolerance if abused. Li-phosphate is more tolerant to full charge conditions and is less stressed than other lithium-
ion systems if kept at high voltage for a prolonged time.
Lifepo4 Battery cells test performance :
1.high discharge rate :
wide temperature discharge
Longer cycle life
Mass Production