Battery not charging
I have a 13-in Macbook from early 2008 and my battery will not charge. The battery indicator in the corner of the screen says "Not Charging" and if I unplug the outlet charger it immediately shuts down. It was working fine a few days ago. I tried updating the system and installing the firmware update for my battery and it still won't work. Is there anything else I can try?
firmware update
MacBook, Mac OS X (10.5.8), Macbook 4,1 (early 2008)