Battery change on mid 2009 Macbook pro

問題

The battery was completely dead after a long time of degraded performance.

修理

It was much easier then I had thought, after hearing too many exaggerated stories about the great difficulties with repairing MacBooks.

アドバイス

Only this: Have a can of compressed air at hand and blow the dust out of the fan while you have the machine open. You wouldn't believe how much quieter it was afterwards! (Sorry, no photos.)