Apple MacBook Pro 17-inch (original, Core 2 Duo, 2.4GHz, Late 2007 CTO, Early 2008, and Late 2008) - Manual (Page 176)

MacBook Pro 17-inch (original, Core 2 Duo, 2.4/2.6GHz, 2008) Troubleshooting — Hardware Symptom Charts 176
allows the battery to properly calculate how much power is left in the battery.
The battery is a consumable part. It can be charged and discharged only so many cycles
•
before it becomes depleted and can no longer hold a charge.
Note: The battery calibration procedure is as follows:
Plug in the power adapter and fully charge your battery until the light on the power a.
adapter plug changes to green and the on-screen meter in the menu bar indicates
that the battery is fully charged.
Allow the battery to rest in the fully charged state for two hours or longer. You may b.
use your computer during this time as long as the adapter is plugged in.
Disconnect the power adapter with the computer on and start running it from the c.
battery. You may use your computer during this time. When your battery gets low,
you will see the low battery warning dialog on the screen.
Continue to keep your computer turned on until it goes to sleep. d.
Note: Save all your work and close all applications when the battery gets low, before
the system goes to sleep.
Turn off the computer or allow it to sleep for five hours or longer. e.
Connect the power adapter and leave it connected until the battery is fully f.
recharged again.
3. The battery has a defect.
Symptoms include, but are not limited to, a relatively new battery that will not charge •
at all, reports an “X” in the menu bar icon, or a status light on its case that will not go
out. In the first two cases, the battery may need calibration—try this first. In addition,
after troubleshooting at the system level, if it is demonstrated that the battery is causing
abrupt shut-downs or goes to sleep without warning, the battery can be considered
severely degraded and follow the criteria at the beginning of this section.
Useful Knowledge Base articles:
86440: Apple Portables: Battery life •
86284: Calibrating your computer’s battery for best performance •
304301: MacBook and MacBook Pro: Battery not recognized after being fully drained •
Bluetooth
Bluetooth system preference pane does not show up under hardware section of
System Preferences
Check for software/firmware updates on the web. 1.
Check the Bluetooth card flex cable. Make sure the cable is not damaged and is fully seated. 2.
Check the Bluetooth flex connection to the trackpad flex. 3.
Check the flex connection to the main logic board. 4.