DeltaMac
Tech
If you remove the main battery while the power adapter is attached, does the green LED come back on?
You might get a recovery like this:
Remove battery and disconnect Magsafe (be sure that's also unplugged from the wall)
Press and hold that power button again for 5 seconds. Leave the power adapter completely unplugged for at least 10 minutes. (be patient today!)
Leave the battery out for now.
Plug the Magsafe back in (no battery, and don't turn on yet). Wait for 5 minutes. Does the Magsafe LED remain on and green? Press and release the power button. Let it start, and wait another 5 minutes or so. Does the green light remain on all that time?
Now - insert the battery. And - shut down your MacBook. Wait 10-15 minutes with the MacBook completely off.
Does the Magsafe LED ever change to amber/orange?
Finally - turn your MacBook back on, and let it set for another 10 minutes or so fully powered on.
Return to the System Profiler. Is there any change to the battery listing now? You would be looking for any change to the Full Charge Capacity - like an actual number - or any other indication of battery charging.
If you still get nothing, then the battery should be toast (and not in a good way )
You might get a recovery like this:
Remove battery and disconnect Magsafe (be sure that's also unplugged from the wall)
Press and hold that power button again for 5 seconds. Leave the power adapter completely unplugged for at least 10 minutes. (be patient today!)
Leave the battery out for now.
Plug the Magsafe back in (no battery, and don't turn on yet). Wait for 5 minutes. Does the Magsafe LED remain on and green? Press and release the power button. Let it start, and wait another 5 minutes or so. Does the green light remain on all that time?
Now - insert the battery. And - shut down your MacBook. Wait 10-15 minutes with the MacBook completely off.
Does the Magsafe LED ever change to amber/orange?
Finally - turn your MacBook back on, and let it set for another 10 minutes or so fully powered on.
Return to the System Profiler. Is there any change to the battery listing now? You would be looking for any change to the Full Charge Capacity - like an actual number - or any other indication of battery charging.
If you still get nothing, then the battery should be toast (and not in a good way )