BXC series workshop rail electric handling flat carts use lead-acid traction batteries for traction. The lead-acid battery is a secondary battery, which converts electrical energy into chemical energy during charging and stores it in the battery, and converts the chemical energy stored in the battery into electrical energy during discharge to supply electrical equipment; each time it is used, the charging method can be used. The active material is restored and then discharged, and the charging and discharging can be repeated many times and recycled.