My mid-2009 13" MBP is currently not in use with the flashing folder, but before it went dead I was getting the Service Battery warning with 75% capacity and just over 400 cycles. This is the original battery in use since late-June 2009. Someone the haswell mega thread had posted about the same model getting the service battery warning and starting to swell after 6 months, so I clicked around my trackpad just to check it. Is it normal for the top half inch to not click down? I don't normal use that part, so I can't recall. If it is swelling possibly, what should I do? I'm not inclined to replace the battery on a laptop that is potentially dead anyway. I need my SATA cable replaced and possibly a new logic board to correct the constant need to replace SATA cables. I've been keeping it plugged in so the battery doesn't just die while I can't use it. Is that a bad idea?