Last night, when both my power adapter and laptop were showing signs that I was fully charged, my computer suddenly died. I restarted my computer, and it said my battery was at 0%. That night, I fiddled around until my power adapter said it was charging and then went to sleep. This morning I come back, and my battery is at 0% still, but both charger and laptop show signs that it's charging (brighter screen, LED is orange, lightning on the battery icon). Does anyone know what's going on?
I have a basic MacBook with the magnetic charger, and it's a few years old.
You may have to see if the information here is of some help, as applicable...
• Apple Portables: Calibrating your computer's battery for best performance
...and the matter of System Management Controller, a reset? Maybe or maybe not.
Read the part 'before resetting SMC' so get an idea that it may not be necessary...
• Intel-based Macs: Resetting the System Management Controller (SMC)
Not sure if there are any related items saved in NVRAM/PRAM for this issue.
A link to that:
• About NVRAM and PRAM
Hopefully some of this helps. Could be another issue behind the symptoms.
The Magsafe connector, or maybe a weak port on the MacBook?
Good luck & happy computing!