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Apple Notebooks Apple's notebook computers including MacBook Pro, MacBook, MacBook Air, PowerBook, and iBook.

MacBook Pro - Weird battery issues


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BethanyLieb

 
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Member Since: May 10, 2007
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I've had my Macbook Pro for about 3 months now, I haven't had any problems with it... except my battery life sucks but everyone's does so no biggy.

Anyways... in the last 2 days my computer has been acting really weird.

It will be at around 30% and it will say that I've reached the reserved battery... which normally it waits until around 12% to say that. THEN now it's shutting itself off around 30..... so I'm thinking that the display is messed up and it's displaying 30% when it's actually 12... so on so on. Like right now it says I have 100% power but this isn't possible because I've been on it for about a half hour now without it plugged in.

Has anyone else experienced these problems? I've turned it on and off ... no help.

Bethany
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rogerinlondon

 
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Yeah, my battery is weird too. Here is the post I did about it

What is wrong with my battery?

Now it is back up to 5300. I will bring it in to the shop for them to have a look. Maybe I can get a new battery out of it.
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jstewart12a

 
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I had the same issue. There was a battery update from the apple's support website it helped a little, but in the end it was in the batch of batteries that was recalled. But I called Apple and they replaced the battery for free and everything was fine after that.
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cormac1982

 
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Hi,
Had my Mac Book Pro (Santa Rosa I think) for about 2 months now and been fairly pleased with the battery life thus far - until this week.
After using it from fully charged to about 40-50% or there abouts, and then putting it into standby for a while (lets say an hour), when I wake it from standby it would immediately go dead. Battery indicator on the battery itself would flash to indicate dead and thus couldn't wake it again until I connect the AC cord. Sure enough the on screen battery indicator shows 0%.
Firmware and battery updates are up to date (1.3 and 1.2 respectively). This has happened a few times now and it's getting a bit annoying. Came across an article on Apple Support: http://www.apple.com/support/macbook...batteryupdate/
Looks like I'd be eligible for a replacement battery due low performance (cycle counts only 46) but I wonder does anyone have any suggestions first?

Cheers.
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cormac1982

 
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Update: Been doing a bit more searching on the forums and found out about a program called coconut which looks handy. Says 2171 max capacity, 38% of original capacity. System profiler says this too, doesn't sound good but maybe it needs a bit of time to calibrate etc.
BTW, would anyone recommend resetting the SMC? sounds like a last resort.
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rogerinlondon

 
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Ask Apple for a new battery, you will get one without any problems.
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cormac1982

 
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Ya, apple reseller where I bought it is only up the road so they should probably sort me out - on the other hand if I ring them and they send me a new one, am I obliged to return the old one!!!!
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cormac1982

 
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Spent half an hour on the phone to apple today - very helpful and knowledgeable. The guy took me through all the usual steps, resetting the PRAM and SMC etc. As we were doing this, I noticed the battery itself was buckling outward! He checked the serial number of the battery and it's one of the ones being recalled so I must bring it to an service provider for replacement.
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