Battery Issue

[hassankhanhk78625]

Hello
I am using a macbook late 2009 running os x 10.9.5. bought it 2nd hand a month ago. when i bought it was good but i noticed yesterday that there came a message of service battery. i searched for it on internet and found that there are some tricks to remove that like performing smc reset and battery caliberation. i done both things perfectly but nothing happen. my battery cycles are 354 and max battery charge is 4400 mah. kindly help please.

 

[ZapNZs]

That particular model does not require calibration. Most likely, the reason the message is displaying is because the service life has passed and the battery needs replacing. If you take it to an Apple Store or Apple Authorized Service Provider, they can run a more detailed test to examine the specifics. There are third party options that Users are very happy with.

 

[hassankhanhk78625]

That particular model does not require calibration. Most likely, the reason the message is displaying is because the service life has passed and the battery needs replacing. If you take it to an Apple Store or Apple Authorized Service Provider, they can run a more detailed test to examine the specifics. There are third party options that Users are very happy with.

Thanks for replying ZapNZs
as apple said that maximum battery cycles are 1000 in a mac's battery but mine used are only 354 right now.

 

[0002378]

Yes, that is unusual, because the battery is supposed to last about 1000 cycles. For comparison, I have a mid-2009 MacbookPro (which I have owned since day 1), and it is currently at 958 cycles.

I am also now seeing the Service Battery message, but I only started seeing it recently, after my battery had completed > 900 cycles. However, I have noticed that it comes and goes in a couple of days. So far, it has not persisted continuously.

One possibility is that your laptop battery is just a bad piece, and is running into problems way too early in its lifetime. It is possible that that is one reason the former owner sold it ... because this message keeps coming up.

My suggestion to you is to wait and watch it for a few days. It may just be a temporary glitch that disappears in a few days. If so, you can continue using it. Or, it may be a completely false alarm (false indication of battery problem) that will keep showing up once in a while but is not an actual problem. In any case, you can continue safely using it until it dies someday.

In the worst case, you may have to buy a new battery. You can get a decent replacement for about $25 on Amazon.

 

[hassankhanhk78625]

Yes, that is unusual, because the battery is supposed to last about 1000 cycles. For comparison, I have a mid-2009 MacbookPro (which I have owned since day 1), and it is currently at 958 cycles.

I am also now seeing the Service Battery message, but I only started seeing it recently, after my battery had completed > 900 cycles. However, I have noticed that it comes and goes in a couple of days. So far, it has not persisted continuously.

One possibility is that your laptop battery is just a bad piece, and is running into problems way too early in its lifetime. It is possible that that is one reason the former owner sold it ... because this message keeps coming up.

My suggestion to you is to wait and watch it for a few days. It may just be a temporary glitch that disappears in a few days. If so, you can continue using it. Or, it may be a completely false alarm (false indication of battery problem) that will keep showing up once in a while but is not an actual problem. In any case, you can continue safely using it until it dies someday.

In the worst case, you may have to buy a new battery. You can get a decent replacement for about $25 on Amazon.

Thanks for response
that was a temporary glitch i think because when i charged my macbook for 12 hours or so it has gone now.
[doublepost=1513502143][/doublepost]And also sorry for bad English because I am a Pakistani and I just passed 10 class exams right now.

 

[0002378]

Thanks for response
that was a temporary glitch i think because when i charged my macbook for 12 hours or so it has gone now.
[doublepost=1513502143][/doublepost]And also sorry for bad English because I am a Pakistani and I just passed 10 class exams right now.

No worries. Glad I was able to help.

 

[Samuelsan2001]

Thanks for replying ZapNZs
as apple said that maximum battery cycles are 1000 in a mac's battery but mine used are only 354 right now.

Age is far more important in battery degradation than cycles, this is a common misconception. Apple guarantee their batteries for over 80% of rated capacity for 1000 cycles or until the end of the warranty (3years with Apple care). Your battery is nearly nine years old the fact that it holds any charge and all is amazing. Get it changed before it starts to expand and really causes some damage, at that age you will have to go third party and probably fit it yourself. Try iFixit.com for decent batteries fir older macs and guides for doing the work

 

[hassankhanhk78625]

Age is far more important in battery degradation than cycles, this is a common misconception. Apple guarantee their batteries for over 80% of rated capacity for 1000 cycles or until the end of the warranty (3years with Apple care). Your battery is nearly nine years old the fact that it holds any charge and all is amazing. Get it changed before it starts to expand and really causes some damage, at that age you will have to go third party and probably fit it yourself. Try iFixit.com for decent batteries fir older macs and guides for doing the work

everything is working fine now no "serivce battery" warning and good battery timing of about 3 hours

 

[ZapNZs]

Thanks for replying ZapNZs
as apple said that maximum battery cycles are 1000 in a mac's battery but mine used are only 354 right now.

1,000 cycles is arguably just a quoted figure based on several averages. Age affects lithium cells just as does usage, as does heat, storage voltage, depth-of-discharge, and operating temperatures. For that matter, what constitutes incremental wear in a cycle is not absolute (for example, sustained periods of higher voltage causes greater wear than sustained periods at nominal voltage, and sustained periods at very low voltage causes a tremendous amount of wear that in some cases can ruin the battery. Further, the depth of a discharge affects wear - draining the battery down to 10% and recharging it just one time may place more wear on a lithium battery than discharging it to 90% and recharging it 30+ times over.)

http://batteryuniversity.com/learn/article/how_to_prolong_lithium_based_batteries

 

[0002378]

1,000 cycles is arguably just a quoted figure based on several averages

If that is the case, I'm an incredibly lucky customer because my mid-2009 battery is at 958 cycles (original factory battery, single owner ... me) ... and I have no money
[doublepost=1513636934][/doublepost]

Your battery is nearly nine years old the fact that it holds any charge and all is amazing. Get it changed before it starts to expand and really causes some damage

Hmm ... my battery is also the same age (mid-2009), and it seems to be going just fine ... 958 cycles. I even physically inspected it when I opened the MBP to upgrade other components.

Yes, it only holds about 90 minutes of charge per cycle, but no physical anomalies like expansion/leakage, etc.

So, question for you or ZapNZs - when it finally dies and I get a new replacement, will each discharge cycle last longer - i.e. give me more than the 90 mins I'm seeing now with the old battery ? (keeping in mind that this Apple battery when new claimed 7 hrs)

 

[Samuelsan2001]

If that is the case, I'm an incredibly lucky customer because my mid-2009 battery is at 958 cycles (original factory battery, single owner ... me) ... and I have no money
[doublepost=1513636934][/doublepost]

Hmm ... my battery is also the same age (mid-2009), and it seems to be going just fine ... 958 cycles. I even physically inspected it when I opened the MBP to upgrade other components.

Yes, it only holds about 90 minutes of charge per cycle, but no physical anomalies like expansion/leakage, etc.

So, question for you or ZapNZs - when it finally dies and I get a new replacement, will each discharge cycle last longer - i.e. give me more than the 90 mins I'm seeing now with the old battery ? (keeping in mind that this Apple battery when new claimed 7 hrs)

Of course a new battery will hold more charge for longer, at 9 years old its done brilliantly but it is a battery and it will die and get worse over time. You probably won't get 7 hours as software and system drain has gone up in 9 years and batteries for it may not have been manufactured all that recently but I wouldn't be surprised if you got 4-5 hours out of one.