According to different models, the price of soup shallow battery is around 600, mainly depending on the size and model. Long life (design life is 3 ~ 6 years) and good economy: the battery grid is made of special lead-calcium alloy, which has good corrosion resistance. At the same time, the electrolyte can be preserved by using special separator, and the positive active material is strongly pressed to prevent it from falling off. It is a long-life and economical battery. Tang shallow battery has small internal resistance: because of its small internal resistance, it has good high current discharge characteristics. Excellent recovery ability after deep discharge: under the condition of long-term discharge, as long as it is fully charged, there is basically no capacity drop, and it will recover soon.