Apple MacBook Pro 17-inch (original, Core 2 Duo, 2.4GHz, Late 2007 CTO, Early 2008, and Late 2008) - Manual (Page 91)

MacBook Pro 17-inch (original, Core 2 Duo, 2.4/2.6GHz, 2008) Take Apart — Backup Battery 91
Procedure
(a) For the MacBook Pro (17-inch), use a needlepoint probe to disconnect the cable 1.
connector from the logic board, as shown below. Warning: When using a needlepoint probe,
great care must be used to avoid slipping off the connector and damaging components.
(b) For the MacBook Pro (17-inch Core 2 Duo, 2.4GHz and Early 2008), sandwich the
connector between a finger or thumb on top and a black stick under the cable and as close
to the JST connector as possible, and gently pull it straight up and out of its well.