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Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

MacBook - Macbook Battery Issues

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Member Since: Apr 28, 2007
Posts: 5
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Okay, im a freakish worry wart about my macbook. Recently, and by recently i mean last week, i checked my battery health on Istat. it was about 86%. I checked it tonight, it was at 80%. If i recalibrate it, would it increase the health of the battery? I dont want to drop more money for a battery soon, i already had to pay a crapload of money for the frayed power cord six months ago.
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Mac Specs: 15" MBP, Core i7/2GHz, 8GB RAM, 480GB Crucial M500 SSD

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Short answer: Don't worry about it. Batteries are consumables and will have a limited life. You can also expect battery "health" to increase and decrease occasionally depending on charging cycles/conditions. There is no mechanized or electronic measurement built into the battery, all "health" ratings are based on trending and analysis and are more of a "guesstimate" than fact.

Liquid and computers don't mix. It might seem simple, but we see an incredible amount of people post here about spills. Keep drinks and other liquids away from your expensive electronics!
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Location: Austin, TX
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Mac Specs: Macbook Core Duo, 2 GB RAM, 250 GB HDD, Samsung 19" Monitor, 250 GB WD My Book, 16 GB iPod Touch

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Call applecare if you are worried. There is an extension on the warranty for MacBook batteries. My laptop had been out of warranty since June and I called them up and told them that my battery wouldn't last three hours with the screen completely dim and all programs other than word off. They overnighted me a new battery for free and all I had to do was drop off the old battery in the box the new one came in at a DHL drop box.
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