Breathing new life in laptop batteries

<been watching when recharging a cell treated with the capacitor zap method <and seeing it's voltage go from about 1.3 Volts back to zero again, <sometimes with a faint ping if about completely recharged. Other cells <become leaky electrically so they can be charged, but self discharge in a they are all bad and really the trick is temporary. I have tried this and sometimes it works for packs that have sat too much unused. First get the cells to take a charge, then discharge at .2 to .6 capacity and then recharge. The trick is to stop the discharge before any cell falls below 1.1v. Some packs after a few cycles start to work normally again. Then again tabbed cells for replacement use run from ~$1.50 to $4 depending on size (not at radio shack, they charge 3x that!). So replacing the cells (as a set) is the best bet. My PX-8 uses 4 1.2ah sub C cells that I can get for under 10$ total and the internal 4 cell 110ma sub AA the whole pack for usually under 5$. Allison