MacBook Pro - Battery Went From 98% to 18% overnight

phinsup · phinsup #1 (**permalink**)

12-04-2008, 12:06 PM

Has 347 cycles, did the calibration anything else i can do???

jimd144 · jimd144 #2 (**permalink**)

12-04-2008, 12:50 PM

If you shut it down and it came back next day at 18, you need a new battery

phinsup · phinsup #3 (**permalink**)

12-04-2008, 01:12 PM

thats what i figured, just surprised me that it went so quickly.

Logan · Logan #4 (**permalink**)

12-04-2008, 04:41 PM

How quickly are you talking? Surely this isn't the new aluminum MBP? I would assume there would be a trick to refresh it. Shut down, take the battery out and let sit for 48hrs, put battery back in and bring up to full charge. I have heard this somewhere but I am unsure if it was the solution to your particular problem.

If all else fails, CLICK HERE for a link to new batteries from Apple. Otherwise eBay might have some for slightly cheaper.

HTH

phinsup · phinsup #5 (**permalink**)

12-05-2008, 01:37 PM

Well here is something interesting to add to this, I got to looking at the battery and it appears the outer casing, right next to the button is coming off, you see it when you remove the battery and you can see it when you install the battery and look at the bottom of the notebook. Maybe it got too hot? It's a Macbook pro 17" it's about 9 months old, not sure if apple would warranty it or not, worth a call i guess.

jrichard012 · jrichard012 #6 (**permalink**)

12-07-2008, 06:14 PM

I replaced a MBP battery that slid down to 33% just after a year of owenership. Apple replaced it on the warranty. You might want to contact them to see if they will do the same. Also, have you "conditioned" the battery according to their procedure?

eric · eric #7 (**permalink**)

12-07-2008, 06:45 PM

did you have an external hd hooked up to it when it was sleeping, and was it off the power lead?

eric #7 (permalink)
Member Since: Nov 04, 2006 Location: twin cities, mn, usa Posts: 8,800	12-07-2008, 06:45 PM did you have an external hd hooked up to it when it was sleeping, and was it off the power lead? Please participate in our Member of the Month polls. Every vote counts! And remember to use the user reputation system! ["Dear Homer, I. O. U. one emergency donut. Signed, Homer." - Note by Homer Simpson]
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MacBook Pro - Battery Went From 98% to 18% overnight

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phinsup #1 (permalink)
Member Since: Feb 12, 2008 Posts: 11	12-04-2008, 12:06 PM Has 347 cycles, did the calibration anything else i can do???
	QUOTE Thanks

jimd144 #2 (permalink)
Member Since: Dec 02, 2008 Location: Sacramento Posts: 145 Mac Specs: MacBook Pro	12-04-2008, 12:50 PM If you shut it down and it came back next day at 18, you need a new battery
	QUOTE Thanks

Logan #4 (permalink)
Member Since: Dec 03, 2008 Location: Iowa Posts: 30	12-04-2008, 04:41 PM How quickly are you talking? Surely this isn't the new aluminum MBP? I would assume there would be a trick to refresh it. Shut down, take the battery out and let sit for 48hrs, put battery back in and bring up to full charge. I have heard this somewhere but I am unsure if it was the solution to your particular problem. If all else fails, CLICK HERE for a link to new batteries from Apple. Otherwise eBay might have some for slightly cheaper. HTH
	QUOTE Thanks

phinsup #5 (permalink)
Member Since: Feb 12, 2008 Posts: 11	12-05-2008, 01:37 PM Well here is something interesting to add to this, I got to looking at the battery and it appears the outer casing, right next to the button is coming off, you see it when you remove the battery and you can see it when you install the battery and look at the bottom of the notebook. Maybe it got too hot? It's a Macbook pro 17" it's about 9 months old, not sure if apple would warranty it or not, worth a call i guess.
	QUOTE Thanks

jrichard012 #6 (permalink)
Member Since: Aug 26, 2007 Location: Orange County, Southern California Posts: 123 Mac Specs: MBP and iMac; 2 iPhones 4G; 2 iPADS.	12-07-2008, 06:14 PM I replaced a MBP battery that slid down to 33% just after a year of owenership. Apple replaced it on the warranty. You might want to contact them to see if they will do the same. Also, have you "conditioned" the battery according to their procedure?
	QUOTE Thanks

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