Product features: 1) Long cycle life: battery cell more than 2500 times (charge and discharge at 1C, 80% capacity retention after 2000 cycles). 2) High safety: no fire and explosion in overcharge test at the voltage up to 30V and in short-circuit test, nail test, heat shock up to 130℃ test. 3) Good charging and discharging performance. 4) High discharge rate up to 10C. 5) Environmental-friendly: all raw material of the batteries are environmental-friendly. 6) Wide working temperature range: from -10℃ to 60℃, extremely cold and hot weather will not effect its performance. 7)Eco-friendly with ISO9002 Quality standard system,adopt with ETL,UN,ROHS&UN 38.3 directions.