Dead battery....no big deal
5 - 10 Minuten
Dead battery on late 2009 Macbook (A1342).
Replacement. Slightly more difficult than changing the batteries in your TV remote. Follow the instructions. They are very simple and to the point.
Use the right tools for the job! Buy the tool kit as it has everything you will need.
Plus, once untethered from the Apple Store, you will use it again to update your RAM.
Mako Driver Kit - 64 Precision Bits
MacBook Unibody (A1342 Late 2009-Mid 2010) Replacement Battery