1 2 3 4 Previous Next 48 Replies Latest reply: May 2, 2014 10:13 AM by Grant Bennet-Alder
Fustbariclation Level 1 Level 1 (0 points)

My 15" Mid-2009 Macbook Pro is giving the 'Service Battery" warning. System information says:

 

"

Battery Information:

 

  Model Information:

  Serial Number:          W0934AD9777VA

  Manufacturer:          SMP

  Device Name:          bq20z451

  Pack Lot Code:          0

  PCB Lot Code:          0

  Firmware Version:          3

  Hardware Revision:          3

  Cell Revision:          100

  Charge Information:

  Charge Remaining (mAh):          4477

  Fully Charged:          Yes

  Charging:          No

  Full Charge Capacity (mAh):          4477

  Health Information:

  Cycle Count:          377

  Condition:          Service Battery

  Battery Installed:          Yes

  Amperage (mA):          -1157

  Voltage (mV):          12156

"

 

So it looks as if the battery is OK, but it is not charging properly. I obviously have to take it to be repaired - but what can they do? I understood that they can't replace the battery, so what are the options? It has only been through 377 charge cycles - that doesn't sound a lot to me - but is it? Shouldn't a laptop that's only just over 2 1/2 years old still have a perfectly good battery??


MacBook Pro, Mac OS X (10.7.1), 2.66GHz Core 2 Duo - 4GB 1TB
  • 1. Re: "Service Battery" warning - what can be done?
    Grant Bennet-Alder Level 8 Level 8 (49,255 points)

    Shouldn't a laptop that's only just over 2 1/2 years old still have a perfectly good battery??

    Over a very large sample of laptop batteries, yes. You do not have a very large sample, you have one laptop, and it could be doing anything.

     

    Make an appointment to visit the genius bar at your local Apple Store. The evaluation is free and they can lay out your options once they get a chance to test your Mac. Bring the power adapter as well. Back up before you go, in case they need to keep it overnight.

  • 2. Re: "Service Battery" warning - what can be done?
    JoeyR Level 6 Level 6 (8,275 points)

    Your battery is designed to perform optimally for up to 300 cycles and then gradually decline in performance.  Batteries in the latest machines are rated for 1,000 cycles.  It sounds like it's just time to replace your battery.

  • 3. Re: "Service Battery" warning - what can be done?
    Fustbariclation Level 1 Level 1 (0 points)

    I hadn't known that the design objective was as low as 300 cycles...

     

    This is another good reason to by a new Macbook Pro 15" when Apple finally releases them this year - I'm probably hoping for a touch-screen as well as a retina display, but a battery that lasts over 1000 cycles would be a big advantage.

  • 4. Re: "Service Battery" warning - what can be done?
    JoeyR Level 6 Level 6 (8,275 points)

    The 1000 cycle batteries have been around for a few years (pretty much all the models with non-removable batteries).  I wouldn't say it was a "design objective" but more the nature of the technology at the time.  The number of cycles you go through is directly related to how often you run on battery.  One cycle is one full discharge and charge.  For example, if your battery is at 100% and you discharge it to 50% and then charge it back up to full,  that would be 1/2 cycle.  You would need to do that twice for it to count as a full cycle.  Likewise, if your battery were at 100% and you let it discharge down to 90% before recharging it, that would be 1/10th of a cycle.  You would need to do that 10 times for it to equal one cycle.  The more you run on battery, the more quickly you can run through cycles.  If you fully discharge and charge your battery every day, you can go through 300 cycles in less than a year.  If you only occasionally run on battery power, it may take years before you hit 300 cycles.  Some people are under the misconception that they should fully discharge the battery before recharging it.  This was true for older battery technologies (Nickel Metal Hydride / Nickel Cadmium), but this is not the case for the lithium ion / polymer batteries which have been used in notebooks for probably close to a decade now.  Fully discharging them with each use will greatly reduce their life.  There are many people who simply have to run their battery down daily because they don't have access to power.  Those situations are certainly understandable.  You shouldn't, however, fully discharge your battery as a matter of practice.

  • 5. Re: "Service Battery" warning - what can be done?
     Yiros Level 1 Level 1 (0 points)

    Battery Information:

     

      Model Information:

      Serial Number:          6N91801GQ2VLA

      Manufacturer:          SMP

      Device Name:          bq20z951

      Pack Lot Code:          0

      PCB Lot Code:          0

      Firmware Version:          002a

      Hardware Revision:          000a

      Cell Revision:          100

      Charge Information:

      Charge Remaining (mAh):          12

      Fully Charged:          Yes

      Charging:          No

      Full Charge Capacity (mAh):          12

      Health Information:

      Cycle Count:          41

      Condition:          Service Battery

      Battery Installed:          Yes

      Amperage (mA):          179

      Voltage (mV):          12538

     

    My (late 2008) MacBookPro5,1 just hit 'Service Battery' /cry.

    Only 41 cycles, and now it's fully charged at 12 mAh.

    That said, I've enjoyed great performance for years, so I'm ok with this. 

    I might just get a retinabook now anyway, so this single battery lasted the entire time I used this machine.

    My usage was mostly from an AC adaptor.

  • 6. Re: "Service Battery" warning - what can be done?
    Stu-art Level 1 Level 1 (0 points)

    Hi, I've got the same Mac, same age, and the same "service battery" warning.

    Should I be in a hurry to get this checked out? Mostly this Mac is used close to a power supply, and therefore plugged into the mains. Battery not so important. Unless this battery warning means that the battery will eventually overheat and melt the inside of the Mac, or explode, etc... is it just a question of battery life, or are there other things to consider?

  • 7. Re: "Service Battery" warning - what can be done?
    Dom_101 Level 1 Level 1 (0 points)

    Hi, I have a mid 2008 17" macbook pro. Last year (2011) I had my battery replaced becuase of the infamous "battery bulge" issue. I went to the nearest Authorized Mac service center in Bangkok and had the battery replaced with a new one. Plus, I noticed that my battery hours have significantly dropped to a mere 30 min after a full charge. Now, less than a year later, my battery condition status is showing "Replace battery NOW!". So I physically checked the new battery and to my surprize, the "Bulge" has returned.

     

    Details:

     

    Charge Information:

      Charge Remaining (mAh):          413

      Fully Charged:          No

      Charging:          Yes

      Full Charge Capacity (mAh):          2085

      Health Information:

      Cycle Count:          384

      Condition:          Replace Now

      Battery Installed:          Yes

      Amperage (mA):          2327

      Voltage (mV):          11916

     

    Does anybody know the warranty any new batteries are supposed to have. And why is the BULGE happening on a less-than a year old battery? I know that I'm getting a new mac with HASWELL next year, but this is unacceptable for any given battery standard. Im not even half-way through my charge cycles. If anyone has any suggestions, please do let me know.

  • 8. Re: "Service Battery" warning - what can be done?
    keslergo Level 1 Level 1 (0 points)

    Mine is only 98 on my early 2011 13-inch MBP. I just recently upgraded to Mountain Lion, I noticed that battery life dropped significantly and this morning I saw Service Battery on the Menu Bar.

     

    Battery Information:

     

      Model Information:

      Serial Number:

      Manufacturer:          DP

      Device Name:

      Pack Lot Code:          0

      PCB Lot Code:          0

      Firmware Version:          201

      Hardware Revision:          2

      Cell Revision:          158

      Charge Information:

      Charge Remaining (mAh):          2772

      Fully Charged:          No

      Charging:          Yes

      Full Charge Capacity (mAh):          2801

      Health Information:

      Cycle Count:          98

      Condition:          Service Battery

      Battery Installed:          Yes

      Amperage (mA):          300

      Voltage (mV):          12083

  • 9. Re: "Service Battery" warning - what can be done?
    mangojasmine Level 1 Level 1 (10 points)

    Ditto on the battery life decrease and "Service Battery" after upgrading to Mountain Lion. I'm planning on taking it in and crossing fingers I can get a new battery as I am under Apple Care.

  • 10. Re: "Service Battery" warning - what can be done?
    keslergo Level 1 Level 1 (0 points)

    Took mine to a service center, they refuse to cover mine under warranty since I didn't get Apple Care.

     

    Anyway since its no longer under warranty, I decided to order online and fixed it myself faster than the service center could do it.

  • 11. Re: "Service Battery" warning - what can be done?
    Abdu's wifey Level 1 Level 1 (0 points)

    I have  Macbook Pro. I noticed today it say Service Battery. Its kinda weird everyone's did it with in a couple of days to a week. Just saying. Guess I'll wait for the hubby to come to fix it. UGH....

  • 12. Re: "Service Battery" warning - what can be done?
    mangojasmine Level 1 Level 1 (10 points)

    Did you recently upgrade to Mountain Lion as well?

  • 13. Re: "Service Battery" warning - what can be done?
    Abdu's wifey Level 1 Level 1 (0 points)

    I went to lion around 4 months ago, since then my hard drive has crashed twice after the updates came and now the service battery. I love apple but something is seriously fish with the lion and it's updates.

  • 14. Re: "Service Battery" warning - what can be done?
    KennyPowers69 Level 1 Level 1 (0 points)

    ive also only started to see this Service Battery Warning since upgrading to ML today

     

    Battery Information:

     

      Model Information:

      Serial Number:          D8611850163DGDLAW

      Manufacturer:          SMP

      Device Name:          bq20z451

      Pack Lot Code:          0

      PCB Lot Code:          0

      Firmware Version:          406

      Hardware Revision:          2

      Cell Revision:          158

      Charge Information:

      Charge Remaining (mAh):          3262

      Fully Charged:          No

      Charging:          Yes

      Full Charge Capacity (mAh):          4545

      Health Information:

      Cycle Count:          297

      Condition:          Service Battery

      Battery Installed:          Yes

      Amperage (mA):          1974

      Voltage (mV):          12142

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