The circumstances of my Macbook Air (late 2010 model) and its inability to charge the battery are a bit unique from the other cases I've read about on forums:
- My battery would not charge, and the computer would die instantly upon removing the MagSafe cable.
- The MagSafe indicator light would sometimes show a very faint green, but most of the time, it was completely off.
- I tried resetting the SMC; nothing changed.
- I tried multiple outlets; nothing changed. Coconut Battery gave a "check battery" status, indicating it needed to be replaced. I did so.
Coconut Battery likes the new battery, but it has the same issues:
- When the computer is on and plugged in, the system's power status says "Not charging."
- When I unplug, the battery powers the system just fine. But eventually, it will lose power from not charging, and I'll be back at Square One.
- The MagSafe indicator light is still off with the new battery. I've tried jiggling it when it is in the port; no change.
- I've tried cleaning out the MagSafe port; no change.
- I've tried using a different duckhead adapter; no change.
- The pins on the MagSafe plug appear fine.
- I've tried resetting the SMC several more times; no change.
I'm out of ideas. I suppose I could try using a different power adapter, but I don't have another on-hand with a compatible MagSafe adapter. Apple's next recommended step is to get the machine serviced. But I'd rather pursue more DIY options if they exist.