Through the chemical reaction on the side battery simply works. The system starts at the negative pole of the anode, the cathode per positive role takes pole. During use the battery positive plate PbO2 and the free acid into parts of the structure of H2SO4 Pb +4 and will return to the SO4 -2 ion. However, the negative plate is converted to Pb and Pb +2 anion form. Charger-2 cation of the field in the structure of SO4 and Pb +2 Pb +4 and original form of anion structure rotates with PbO2 and Pb.
The creation of this reaction provides the energy difference of the power of the tool will create work.