Macbook Pro 2012 10.8.2 battery life *****!

Good Afternoon Everyone.
This week I notice my macbook pro battery life run out of juice very quickly. Yesterday start it using it at evelenish at 50% at 12:30 was down to 7%. Today, well right now It was at 99% I'm 15 minutes into using battery down to 85%, why is my battery dying incredibly fast? Can I get tips on battery saving?
Thanks, Have a nice superbowl sunday everyone.

Runaway applications can shorten battery runtime, affect performance, and increase heat and fan activity

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<Edited By Host>

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Melophage wrote:
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(sorry for my poor english)

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Message was edited by: ssweriduk
Message was edited by: ssweriduk

I have an update regarding this issue. Since receiving my new MacBook Pro, I have calibrated the battery 3 times. Here are my findings of each calibration when the battery reaches 0% charge:
1st calibration: MacBook Pro enters SafeSleep (saving contents of memory to HD) and powers down (no pulsating light indicating memory is still being maintained until plugged-in or battery reserves are depleted). Plugging adapter in and powering up results in memory being restored from HD.
2nd calibration: Same as 1st calibration
3rd calibration: MacBook Pro shuts down without entering SafeSleep. Plugging adapter in and powering up results in normal boot sequence with logs indicating improper shutdown.
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pmset -g returns the following (looks normal to me):
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AC Power -1*
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womp 1
halfdim 1
sms 1
hibernatefile /var/vm/sleepimage
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sleep 0
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ttyskeepawake 1
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I don't think this is the intended behavior for this MacBook Pro. I've started a case with AppleCare and I hope an engineer will respond to what I'm experiencing as I don't think this is normal. It appears that the MacBook Pro is not accurately determining the bottom threshold of the battery. It thinks there are reserves when there is actually none, causing weird behavior at the end of the battery charge life.
Anybody else experiencing this with their MacBook Pro 15" i7?
Will update as soon as I find out more.
Message was edited by: ube

Macbook Pro 2012 10.8.2 battery life *****!

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