3 simple rules:
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DO NOT leave your charger connected when the battery is charged, even when you go to sleep.
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DO let it discharge completely, when using it wait till it reaches 0%, when sleeping it leave it alone, when you’ll wake up and you’ll open it, a resume from suspend to disk will greet you. OSX FTW.
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Monitor it and show off OSX performance counters to your friends (images courtesy of CoconutBattery.app and System Profiler.app)
