SHANGHAI, May 10 (SMM) – According to SMM survey, the outbreak of pandemic in many places of China has brought great pressure on the production and sales of lead-acid batteries. Auto batteries were the most affected, while the energy storage market and export business performed relatively well. A number of battery companies said that the domestic sales of lead-acid batteries were sluggish in May. However, as battery costs have risen amid rising prices of sulphuric acid, plastics, and tin, lead-acid battery makers may increase their selling prices slightly in the off-season. Consumption in May is expected to remain weak.