MacBook Pro models with 13" displays

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battery swollen have changed it why so

My macbook pro battery was swollen and it has been changed why it has got this issue,should we have always keep the laptop on or should we off it when not in use should we always keep in hibernation with ac power on.please guide me i am NARAYANAN LAKSHMANAN from india Thank you

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This problem is in my macbook pro 2009 model,i have used it for 4 years now

APPLE has changed the battery now,should I keep the machine on with the power mode,will it solve the issue in the new battery.please guide me

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NARAYANAN, I haven't seen any swollen batteries in the newer unibody machines. They were quite common in the C2D 2006-2008 MacBook Pros. Apple was replacing them for free for a while but needed more cash. I haven't had them replace a battery for three years now. In my opinion this were all factory defects. What machine did you find this one in?

The MC0BOOK13W and MC0BOOK13B were known to catch fire and maybe Apple will still replace them. Here's the forum on the swollen ones: https://discussions.apple.com/thread/258...

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Best not to use or charge your system until you get the battery replaced.

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Here's some helpful links:

Apple info on lithium-ion batteries Also review the Notebook section in detail in the How to Maximize Power Use section.

Here's a more techie writeup Charging Lithium-ion

In your case I agree with Mayer you had a defective cell. Any impurities inside can lead to a premature breakdown causing the CO2 buildup which caused the battery to swell.

Just follow the Apple guidelines on taking care of your battery. And use your system as you normally do.

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nice links Dan

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NARAYANAN LAKSHMANAN will be eternally grateful.
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