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SUNBEST assembles LiFePO4 battery packs by using original A123 Systems Cells that are purchased from A123 factory in Shenzhen, China. The SUNBEST's battery packs are for RC airplanes, e-bike, motorcycles and EV applications. A123 battery cells adapt the nanophosphate lithium ion battery technology, delivering high power and energy density, longer cycle life and excellent safety performance.
          SUNBEST offers the best LiFePO4 A123 battery packs for you. We provides the cost-effective LiFePO4 battery packs, greatest services and the complete energy storage solutions to the customers from world wide.
Specification:

1.  Cell Dimensions(mm): 26mm(D)*65mm(H) 
2.  Cell Weight(g): 70 
3.  Cell Capacity(nominal/minimum,Ah): 2.5 
4.  Voltage(nominal,V): 3.3V 
5.  Internal impedance(1kHz AC typical,mΩ): 8-10 
6.  Recommended standard charge method: 1C to 3.6V CCCV, 45 min 
7.  Recommended fast charge Method to 80% SOC: 4C to 3.6V CC,12 min 
8.  Maximum continuous discharge(A): 70 
9. Maximum Pulse discharge(10 seconds,A): 120 
10. Cycle life at 10C discharge, 100% DOD: Over 1,000 cycles 
11. Operating temperature range: -30°C to +55°C 
12. Storage temperature range: -40°C to +60°C