The cycle life of lithium battery cells varies associating with the testing condition of cycle life, including temperature, DOD(deepth of discharge), remaining battery capacity, charge and discahrge current. Common testing condition of cycle life is to charge and discahrge at 0.5C or 1C current rate under 100% DOD at the room temperture,  the cycle life number is recorded until remaining battery capacity is less than 80%. The cycle life increase along with shallow DOD, and low current rate, and high capacity loss. Terefore, Litihium Storage suggested clients to pay attention to the testing condition of cycle life. In addition, the reliability of cycle life data from battery manufactuer is also relevant with the reputation of battery brand.