how to correct the battery circuit
Steps. 1  1. Disconnect the battery from your laptop. 2  2. Pry the battery apart. 3  3. You will see 6-8 cells connected to a circuit board.  4. Make a note of where the wires connect 1  to. 5. Use a soldering iron/electric welding tool to separate cells from the wires.  6. Then solder/weld the new cells 1  together. 7. Put the new cells into the  case.