My Mac runs extremely slow after battery replacement, not usable now.
So after 6 years with my macbook I figured I could gain some extra battery time if I switched it out. I ordered it from ebay and figured that it would work fine. I followed the instructions and exchanged the battery but then when I turned it back on it runs extremely slow and lags. I can barely log in and this takes half an hour.
I figured that the battery was bad so I changed it back to the old one, but it didn't change anything and it is now not possible to use it for anything.. Anyone have any idea what this could be? I can't use it for anything at the moment so it is not possible to update it in any way.
I also tried disconnecting the battery all together but then it won't turn on at all. The fan is running at full speed from the second I turn it on. I also did an update before turning it off and exchanging the battery if that's of any importance.
The battery symbol just shows an X and no battery available.
Is this a good question?