The battery of Weichai generator is mainly composed of pole plate, separator, shell, electrolyte and connecting strip. Its working principle is: when charging the battery, the electrolyte converts electrical energy into chemical energy and stores it. When the battery discharges, the electrolyte converts chemical energy into electrical energy and transports it out.
         The main functions of the battery of Weichai generator are:
         1. Supply power to the DC motor when the diesel engine is started.
         2. When charging Weichai generator does not generate electricity or supplies power to electrical equipment when the voltage is low.
         3. When the electrical load exceeds the power supply capacity of the charger, the battery can supplement the power supply.
         4. When the battery of Weichai generator is insufficient and the power generation of the charging generator exceeds the load demand, the charging generator charges the battery, and the battery plays the role of storing electric energy.