Apple experts, I need some help. [Archive] - Glock Talk

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G36's Rule
06-28-2009, 18:22
I've got a MacBook Pro that was purchased in March of 2008. It is 2.5GHz machine with 2Gb of memory.

It has been a very reliable machine with no problems to speak of... until this past week.

If I am on battery power it will shut down without warning at 56% battery power or about 2 hours of use. It does this whether booted in Mac OS or Vista.

Just shuts down cold and will not reboot unless you go to AC power.

I've reset the SMC with no effect. I've searched the net and found similar problems back in late 2007 that were battery related.

Anyone else have any suggestions before I spend the money for a new battery?

The battery shows to have 97% of original capacity with about 50 cycles.

Thanks.

Glock20 10mm
06-28-2009, 18:55
Sounds like a faulty battery... do you have an electrical test rig? Check the batteries voltage at full charge then again when the monitory says 56% or when the system dies. Just a quick thought.

secutorum
06-28-2009, 19:00
Did you not purchase Apple Care? Computers of any sort seem to develop problems a few moths out of warranty, especially if it's only a one year warranty.

You may want to call and check with Apple before you buy a new battery. My MBP was a year older than yours and had a battery issue and was replaced free of charge. I had AppleCare, but would have been free without it, because it was a recall issue.

Another option would be to take it to the Genius Bar at your local Apple Store.

G36's Rule
06-28-2009, 19:05
Did you not purchase Apple Care? Computers of any sort seem to develop problems a few moths out of warranty, especially if it's only a one year warranty.

You may want to call and check with Apple before you buy a new battery. My MBP was a year older than yours and had a battery issue and was replaced free of charge. I had AppleCare, but would have been free without it, because it was a recall issue.

Another option would be to take it to the Genius Bar at your local Apple Store.

Yes, we actually did purchase Apple Care but I doubt they will cover a consumable like the battery.

Am I wrong?

G36's Rule
06-28-2009, 19:07
Sounds like a faulty battery... do you have an electrical test rig? Check the batteries voltage at full charge then again when the monitory says 56% or when the system dies. Just a quick thought.

I've got a Fluke at work, that isn't a bad idea. I was hoping someone knew this problem and had a software fix, though with it happening with both Mac OS and Vista it seems it may be a hardware issue.

secutorum
06-28-2009, 19:23
Yes, we actually did purchase Apple Care but I doubt they will cover a consumable like the battery.

Am I wrong?


They WILL cover it, if the battery is defective. If it's acting that way after only 50 cycles and a bit over a year in use, then the battery is likely defective.

Call Apple. They're actually helpful. The two times I've called, I've spoken to a human, whose first language was English. They were polite, helpful and knowledgeable. A pleasure to deal with.

EDIT: Do you condition the battery? Run it all the way down and then recharge it once a month? And by all the way down, I mean completely drained. Should be doing that on any laptop monthly. Try that first.

Hunca Munca
06-28-2009, 19:36
Battery is covered.
Go to genius bar at apple store.
If batt is bad they will probably just hand you a new one right there.

ithaca_deerslayer
06-29-2009, 08:02
I was going to say, go with empire. They are usually crisp and tasty, and keep very well after the season.

I like red delicious, too, but they don't usually keep as well as empire, so be sure to eat them up quick.

Futuristic
06-29-2009, 08:56
EDIT: Do you condition the battery? Run it all the way down and then recharge it once a month? And by all the way down, I mean completely drained. Should be doing that on any laptop monthly. Try that first.

FYI, this is NOT the proper care for newer Lithium-Ion and especially Lithium-Polymer batteries.

Those types do NOT need to be run down in order to avoid 'Memory Effect', that was almost entirely restricted to older Nickel-Cadmium and Nickel-Metal-Hydride batteries.

Read the care instructions with any new electronic device. With battery technologies proliferating you never know these days what care a particular device needs, other than to read the instructions that came with it.

Futuristic

G36's Rule
07-02-2009, 17:17
Weirdness continues.

I've just got my puter back from the Apple store and they can find no fault. The computer is running with 36% on the battery and no problems.

Then I tried to boot up in Vista...

DOA from the start. Try Mac OS, dead...

Plug it in and delete the Vista partition and it is now running on battery at 36%.

What in heck is going on???

I thought I could install Vista using boot camp and run it fine.

G36's Rule
07-02-2009, 17:19
FYI, this is NOT the proper care for newer Lithium-Ion and especially Lithium-Polymer batteries.

Those types do NOT need to be run down in order to avoid 'Memory Effect', that was almost entirely restricted to older Nickel-Cadmium and Nickel-Metal-Hydride batteries.

Read the care instructions with any new electronic device. With battery technologies proliferating you never know these days what care a particular device needs, other than to read the instructions that came with it.

Futuristic

Sorry, but this is 100% contrary to what the Mac people are telling me. They are saying once a month I need to deplete the battery 100% and then recharge to calibrate the battery.

G36's Rule
07-02-2009, 18:49
Now it is dying on Mac OS at 29%.

Fricking hate computer problems...

bluenoise
07-02-2009, 18:56
As I understand it (and it very well could be wrong) it's not that the modern batteries need to be run down to avoid memory effect. It's that the system that determines estimated remaining charge needs to recalibrate to know the battery's true capacity. It does this with a full rundown. The same, apparently, is true with the iPhone.

Regarding the OP problem: When you took it to the Apple store, did you show them all the typical things you do on battery power, such as browse the web, run Vista, etc? Did it perform properly during this demonstration?

kiole
07-02-2009, 18:56
call the apple store or 800 number and tell them you attempted to get it fix they found no issues and now it's doing it again. They will probably just give you a new battery to attempt and diagnose the problem. Apples pretty good about repairs. Had my computer die out of warranty and they fixed it for free. Logic board on my macbook fried.

G36's Rule
07-02-2009, 19:10
Man, now it is doing it consistently with Mac OS at about 30%. It dies and when I plug it in it shows 0% with about 59% capacity. Once it charges for about 5 minutes it show all is well.

It has got to be the battery. Too bad Mac will not cover it... Even with Applecare.

joeG26er
07-02-2009, 19:12
Yes, we actually did purchase Apple Care but I doubt they will cover a consumable like the battery.

Am I wrong?

The battery is supposed to be good for a certain amount of cycles.
Your battery sounds like it is defective especially since it is showing 56% and dying.
If you have applecare, they should take care of you

Call them

GAFinch
07-02-2009, 19:21
Yeah, Applecare does have restrictions on the battery after a year, doesn't sound promising.

bwphoto
07-02-2009, 20:59
Ah crap. This happened to me on an old one... I just can't recall what I did. I'm sure I googled the hell out of it and came up with something though. I might've reinstalled the OS. I think it wasn't as much the battery being low, but whatever software was gauging the life left. So while your OS says it's at 30% it's actually at zero. How long does it run when it has a 100% charge?

Also, I've had two Apple laptops, and both have had their batteries replaced due to recall issues. You might also look into that.

jtmac
07-02-2009, 22:12
Sorry, but this is 100% contrary to what the Mac people are telling me. They are saying once a month I need to deplete the battery 100% and then recharge to calibrate the battery.

Whoever is telling you that is wrong. It's contrary to truth, physics, and Apple's own recommendations. In fact, completely draining the lithium ion battery frequently will shorten its lifespan.

And yes, it sounds like the battery. A bummer, but thus is the way of batteries--they tend to die. Except old lead-acid batteries. Anybody else miss those?

magicmirror
07-02-2009, 22:21
See if the battery is swelling. It's an issue with these machines. Almost certain it's the battery. Mine had the same problem.

G36's Rule
07-03-2009, 07:04
Whoever is telling you that is wrong. It's contrary to truth, physics, and Apple's own recommendations. In fact, completely draining the lithium ion battery frequently will shorten its lifespan.

And yes, it sounds like the battery. A bummer, but thus is the way of batteries--they tend to die. Except old lead-acid batteries. Anybody else miss those?

I understand what you are saying, but Apple disagrees:

http://support.apple.com/kb/HT1490

grokdesigns
07-03-2009, 10:03
Whoever is telling you that is wrong. It's contrary to truth, physics, and Apple's own recommendations. In fact, completely draining the lithium ion battery frequently will shorten its lifespan.

And yes, it sounds like the battery. A bummer, but thus is the way of batteries--they tend to die. Except old lead-acid batteries. Anybody else miss those?

Lenovo computers include a utility designed to do exactly what you're saying not to. It will run the battery completely down and then charge it to "re-calibrate" the battery so that readings are more accurate.

Deanster
07-03-2009, 17:25
Sounds like a battery freak-out. In general, Apple won't cover batteries that won't hold a charge and have a lot of cycles on them, but if you can convince them that the battery's controller has crapped out, you might be able to get some help. A 50-cycle battery shouldn't be having that kind of problems.

Good luck. I had a bad set of battery hassles with Dell, and while they eventually got it fixed, I've been a lot more impressed with Apple's responses...

G36's Rule
07-04-2009, 08:11
For those that are interested, I purchased a new battery yesterday from the Apple store. Intstalled it and it was at about 30% so I charged it up and have been using off and on since yesterday evening.

It is now at about 6% charge and still working fine. So it appears it was the battery all along.

Thanks for the help.

:wavey: