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Macbook Pro 2009 battery life

A

AndrewR23

Contributor
Original poster
Jun 24, 2010
4,649
1,797
My battery life is very bad. goes down 40% in half an hour just viewing the internet. Only one year old, still have warranty with Applecare. Will I be able to exchange it for a replacement, how does this work?

Thank you all.
 
Battery Information:

Model Information:
Serial Number: W0920004P77ZA
Manufacturer: SMP
Device name: bq20z451
Pack Lot Code: 0000
PCB Lot Code: 0000
Firmware Version: 0003
Hardware Revision: 0002
Cell Revision: 0100
Charge Information:
Charge remaining (mAh): 4805
Fully charged: No
Charging: No
Full charge capacity (mAh): 5209
Health Information:
Cycle count: 289
Condition: Normal
Battery Installed: Yes
Amperage (mA): -1076
Voltage (mV): 12111

System Power Settings:

AC Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 10
Wake On AC Change: No
Wake On Clamshell Open: Yes
Wake On LAN: Yes
Display Sleep Uses Dim: Yes
Battery Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 10
Wake On AC Change: No
Wake On Clamshell Open: Yes
Current Power Source: Yes
Display Sleep Uses Dim: Yes
Reduce Brightness: Yes

Hardware Configuration:

UPS Installed: No

AC Charger Information:

Connected: No
Charging: No
 
It doesn't seem like there has been a huge capacity drop in your battery. That being said, I recommend repairing disk permissions via Disk Utility, resetting the PRAM and SMC, and calibrating your battery.
 
Of course the information he will provide from his Mac will help, but it seems obvious that there is a problem with his battery. My sister has a 15" MBP from 2009 which I used from time to time before getting my own and it provided me with good 5-6 hours of web browsing and video streaming...
 
yes, snow leapord. If I take to Apple and set up an appt, what happens? will they give me a replacement?
 
its been 19 minutes now that ive had it off the charger, its at 89%, all ive been doing is this.
 
They'll only replace it if there's something wrong with it; granted you haven't tripped any of their booby tra... I mean, sensors.
 
Repo said:
They'll only replace it if there's something wrong with it; granted you haven't tripped any of their booby tra... I mean, sensors.
Click to expand...

how would i know? everything works perfect except the battery.
 
Go ahead and pull up your Activity Monitor (in Utilities folder). Make sure there isn't anything consuming your CPU that you're unaware of.
 
Have a look at Activity Monitor (Applications > Utilities) and select Show All Processes and sort by CPU to see what the culprit may be.

image below uses sorting by CPU as an example
4745264042_9c23afdbc9_b.jpg
 
celticpride678 said:
Apple will replace it if it is under 300 cycles. However, since you're pretty close, they might not.
Click to expand...

is that true? im under 300. and thats pretty stupid because I purchased Applecare an extra 2 years for cases like this.
 
celticpride678 said:
Apple will replace it if it is under 300 cycles. However, since you're pretty close, they might not.
Click to expand...

Haven't they extended it to 1000 cycles in accordance to their promised 1000-cycles reliability with the new non-user-replaceable batteries?

And OP:

Have a look at Activity Monitor (Applications > Utilities) and select Show All Processes and sort by CPU to see what the culprit may be.

And image as example is included in post #12.
 
andrewr23 said:
is that true? im under 300. and thats pretty stupid because I purchased Applecare an extra 2 years for cases like this.
Click to expand...

They might replace it - I'm not totally sure. The Genius didn't replace my battery when I went in (with under 300 cycles) because he didn't see any cause (even though battery life was horrible).


spinnerlys said:
Haven't they extended it to 1000 cycles in accordance to their promised 1000-cycles reliability with the new non-user-replaceable batteries?
Click to expand...

Depends what MacBook Pro it is - which MacBook Pro is it?
 
celticpride678 said:
They might replace it - I'm not totally sure. The Genius didn't replace my battery when I went in (with under 300 cycles) because he didn't see any cause (even though battery life was horrible).




Depends what MacBook Pro it is - which MacBook Pro is it?
Click to expand...

If it is less than a year old, it is one of the June 2009 editions, with the non-user-replaceable batteries.
 
okay I got that all processes thing open, what now? im very stupid with computers, thats why I wanna take it to apple. I mean its been about 35 minutes , its down 20%. What did you do when he didnt replace your comp under 300 cycles???

Macbook Pro 13 inch bought June 2009
 
celticpride678 said:
Apple will replace it if it is under 300 cycles. However, since you're pretty close, they might not.
Click to expand...

If they will replace it under 300 cycles, then they will replace his at 289.

That's like saying "Yes Sir, you get a free 1 year warranty with this car... But it expires in 300 days."

Have you actually tried running the battery down and physically timed how long it lasts? In my experience the % isn't always accurate, I've been at 0:00 remaining for over 30 minutes once.
 
andrewr23 said:
okay I got that all processes thing open, what now? im very stupid with computers, thats why I wanna take it to apple. I mean its been about 35 minutes , its down 20%. What did you do when he didnt replace your comp under 300 cycles???

Macbook Pro 13 inch bought June 2009
Click to expand...

I paid for a new battery :(

Post a screenshot of the processes window (How to: http://guides.macrumors.com/Taking_Screenshots_in_Mac_OS_X)

TheBritishBloke said:
If they will replace it under 300 cycles, then they will replace his at 289.

That's like saying "Yes Sir, you get a free 1 year warranty with this car... But it expires in 300 days."

Have you actually tried running the battery down and physically timed how long it lasts? In my experience the % isn't always accurate, I've been at 0:00 remaining for over 30 minutes once.
Click to expand...

No - it's really not...
 
andrewr23 said:
okay I got that all processes thing open, what now? im very stupid with computers, thats why I wanna take it to apple. I mean its been about 35 minutes , its down 20%. What did you do when he didnt replace your comp under 300 cycles???
Click to expand...

As the image shows, click on the PROCESSES drop-down menu and select ALL PROCESSES , then click the CPU column (the one I marked RED like the PROCESSES drop-down menu) to sort by CPU usage (descending). What does it say there?

image below uses sorting by CPU as an example
4745264042_9c23afdbc9_b.jpg



Taking screenshots in Mac OS X.
 
uploading screen shot, it keeps changing in the processors though every 3 seconds
 
Even though the screenshot is kind of wrong (you sorted ascending and scrolled down a bit, so no CPU intensive processes might be seen), it still shows, that there is no connection between CPU and battery power. Make a Genius Bar appointment or contact Apple otherwise to get them to do something.

Btw, did you try an SMC reset and calibration of the battery like previously asked (but not answered) or used Coconut Battery to confirm the battery's health?


Intel-based Macs: Resetting the System Management Controller (SMC)

Apple on notebook batteries
Apple Portable: Calibrating your computer's battery for best performance
Laptop Battery Guide
GGJstudios said:
Apple Notebook Battery FAQ
Click to expand...
 
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