Method of recovering voltage of a primary cell and its device

A device for recovering voltage of a primary cell, said device comprising:

• a reading circuit connected to two poles of a cell, for obtaining a start voltage and capacitance said cell;
• a control circuit for receiving data from said reading circuit;
• a stimulating circuit for receiving data from said control circuit, for imposing a sine curve impulse on a positive pole of said cell to excite a chemical substance in said cell and recover the voltage in said cell to a standard voltage;
• and
• a voltage changing and rectifying circuit for receiving data from said control circuit and to adjust a level of voltage inputted in said stimulating circuit,
• wherein said stimulating circuit imposes sine curve impulse once every 1-3 seconds for stimulating said chemical substance in said cell;
• imposing said sine curve impulse once every 5-7 seconds when the voltage read from said cell has recovered a difference of said start voltage from standard voltage for more than 70%.
• imposing said sine curve impulse once every 10-12 seconds when the voltage read from said cell has recovered a difference of said start voltage from said standard voltage for more than 90%;
• and,
• changing said sine curve impulse into a small stream of impulse for stabilizing said chemical substance in said cell when the voltage read from said cell has recovered a difference of said start voltage from said standard voltage for more than 99%.