Battery designed to meet the power requirements of appliances carried out. On the one hand to meet the electrical apparatus to provide the best performance of the power supply, the other for the battery manufacturers to create the maximum profit. This requires that the battery design products with the lowest production costs and optimization of battery performance and reasonable battery performance and design is a balance between its cost. Reduce the unit cost of the most effective way to reduce the composition of various parts of the battery feed costs and enhance production efficiency Gao, feeding may cause the battery to reduce the cost of some performance degradation, DELL Inspiron 1750 battery in order to overcome this decline, we must improve effective use of battery feed, such as lowering the extent of the battery feed invalid improve the utilization of active materials, and improve product compliance rate (yield), etc., so that the battery design of the ultimate goal is to achieve maximum effectiveness Wu Zhi. For users, the battery has the best value for money, the manufacturers, battery manufacturers to maximize profits.