|Hi Hitech, sounds like the replacement battery you have is the wrong one. |
e.g. the difference in voltage is considerable
voltage to be the same
watts to be the same or (better still) greater
fit in laptop
Would not choose one with a large number of cells or from another country.
Searching ebay uk for :- compaq battery PPB004A
Found 25 to choose from. Cheapest is not necessarily the best.
Please advise back on progress.
Good Luck - Keep us posted.