We encountered an error while trying to save the changes. We've made a note of it, and we'll fix the problem as soon as possible.
But things aren't so bad. Once the screws are out, you can just unplug it.
If you weren't counting, that's 19 screws to remove the battery. Replacing the battery is straightforward, but not something you'll be doing when your battery dies mid-flight.
It won't be long before we, along with the rest of the Mac market, will be selling replacement batteries for this machine.
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