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MacBook Pro tip: resetting SMC saved my day
Here's a timely tip if the battery on your Intel based Mac laptop seems to be operating at less than optimum performance.
The other day I took my MacBook Pro off the charger and was surprised to see only an hour and 40 minutes of run
time, even though the battery was fully charged and only a few months old. It didn't seem right, and I went immediately on the web to make a Genius appointment at our local Apple Store. Then I did a little digging around Apple support documents and found one that seemed promising.
Was it possible I needed to reset the SMC (System Management Controller)? Well, dutifully following the instructions, I shut down my laptop, removed the power cord and unhooked the battery. I held down the power button for 5 seconds, put the power cord back on, and inserted the battery. Surprise surprise, my computer started up and showed about 4 hours of time left on the battery when I went back off the charger. Better still, it really did hold up for that amount of time, so things were back to normal. I canceled my Genius appointment and spent the day congratulating myself for finding the tip, and getting my battery back in shape.
The SMC is a chip on the motherboard that can lose its way, and in my case it needed a little kick to get itself sorted out. This chip has been the focus of some controversy in the past, and Apple has updated the SMC firmware repeatedly. Anyway, this fix worked for me -- might work for you. Here's the link to the Apple Support Document. There are instructions for the Intel MacBooks, MacBook Pros, and the new MacBook Air. Be there or be square.
