My 2011 13' MacBook Pro is only giving me about 4 hours of battery. All i do is surf the internet (really no flash) and listen to music. The battery decreases about 15% on sleep overnight. So if i take it to Apple what will their response be? Will they fix it or send me home? I've already done the calibrate.
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Thinking about taking my MacBook pro to Apple...
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Your battery life from a charge is determined by many factors. Also, it's normal to use about 1% of battery power for every hour of sleep. It's also possible your Mac didn't stay in sleep mode the whole time. This should answer most, if not all, of your battery questions:
try resetting the SMC and PRAM:
http://support.apple.com/kb/ht3964
http://support.apple.com/kb/ht1379
http://support.apple.com/kb/ht3964
http://support.apple.com/kb/ht1379
PRAM/NVRAM has nothing to do with battery, charging or power issues. Resetting it will not help.
couldn't the pram not properly working in sleep cause the problem the OP is posting about losing a lot of battery while the computer is asleep?
No, NVRAM and RAM are two different things, and neither will affect the Mac's ability to enter or stay in sleep mode.
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That's odd. Calibrating might not work since that only helps the counter. I'd say bring it in to Apple, it's a free diagnosis anyway.
If your health is 92%, it's doubtful there's anything wrong with your battery. Did you read the Battery FAQ I posted, which describes factors related to battery life from a charge?
If you're talking about the computer in your sig, 4 hours is great. They were advertized to last 5, but that never really happened.
nope. coconut just confirmed it. i guess i just have an awesome battery
Are you talking about real fruit coconut?
I am talking about my battery with istats.----------
that is good to know but 372 cycles with perfectly 100% health is not making any sense.
Are you talking about real fruit coconut?
=
OH YOU. I'm gonna assume that you actually know that i'm using coconutbattery and not mashing a coconut into my computer keyboard (while yelling RAWR, no less)
I own a 2010 MBP and do what I can to maximize battery life. I have a 7200RPM HDD, so I'm sure it's hurting battery life some, but the performance boost is worth it for me.
I used to get about 5 hours of battery life, with JUST internet browsing. Going from Chrome to Safari increased battery life 2 hours, going to click to flash and adblock, another hour. I went from 5 hours of light browsing, to 8 hours of light browsing, by simply changing my browser to Safari and getting rid of the background ads and flash that were sucking up the CPU power.
Now I'm getting 8 hours or more of browsing with just Safari and Outlook open, with Outlook being run in the background.
Just out of curiosity, I unplugged my MBP and used it for about 5 minutes without the charger so the battery timer would stabilize. It estimated 9 hours of battery life remaining. I then opened iTunes and started playing some music through the internal speakers with volume at about 25%. My battery timer went from 9 hours remaining, to 5:30 remaining. iTunes put about an 8-10% load on the CPU just playing music in the background.
Unfortunately the huge battery life numbers Apple posts are over inflated for marketing. I've got about 12 hours on a charge doing strictly word processing with bluetooth and airport off. Otherwise, I've never made it to the 10 hour claim while using Safari, Excel, or anything else. 9 hours is about the best I can get while doing anything other than word processing.
I used to get about 5 hours of battery life, with JUST internet browsing. Going from Chrome to Safari increased battery life 2 hours, going to click to flash and adblock, another hour. I went from 5 hours of light browsing, to 8 hours of light browsing, by simply changing my browser to Safari and getting rid of the background ads and flash that were sucking up the CPU power.
Now I'm getting 8 hours or more of browsing with just Safari and Outlook open, with Outlook being run in the background.
Just out of curiosity, I unplugged my MBP and used it for about 5 minutes without the charger so the battery timer would stabilize. It estimated 9 hours of battery life remaining. I then opened iTunes and started playing some music through the internal speakers with volume at about 25%. My battery timer went from 9 hours remaining, to 5:30 remaining. iTunes put about an 8-10% load on the CPU just playing music in the background.
Unfortunately the huge battery life numbers Apple posts are over inflated for marketing. I've got about 12 hours on a charge doing strictly word processing with bluetooth and airport off. Otherwise, I've never made it to the 10 hour claim while using Safari, Excel, or anything else. 9 hours is about the best I can get while doing anything other than word processing.