I had serval problems with the SATA cable for the hard disk on my MacBook Pro 13" mid 2009.
Buying a new cable from apple was too expensive for that old MacBook, so I kicked out the SuperDrive and put my disk in there.
Now there is quite a lot empty space in my MacBook and I wonder if it would be possible to put a bigger battery in there.
Considering that the old battery is 8 years old and there is more space now it should be possible almost double the battery capacity.
Now I wonder if there is any way to get such a battery?