Why wont my replacement battery charge (no light)?
I have changed out the battery of my mid 2010 macbook pro twice now and both times (2 different replacement batteries) the battery runs the computer fine on its own, but it will not charge. When I plug the adapter in, there is no light at all. My original battery runs the computer fine if it is plugged in (green light appears) but it's well passed the recommended charging cycles, so if the cord detaches even for a split second, the computer turns off instantly. I really need to figure this out and get a working battery in my laptop. Can anyone help?
Also, Resetting PRAM and SMC did not do anything.
Side note:
Original battery specs are: 10.95V - - 77.5W
Replacement battery specs are: 10.95V - - 72.5W
Is this a good question?