MacBook stopped counting battery cycles

It seems that my MB doesn't count my battery cycles anymore. I calibrated last week and since calibration I used it two times till 75% and charged it again. But the number of cycles is still 7 which is the same as before calibration. Does anybody know why this is and how it could be solved?
Thanks!

stedman1 wrote:
Hi Rutgergr: I really don't think there is an issue to solve. You used your battery until there was 75% remaining, meaning that you used 25%. Doing this 2 times would mean that you have actually used approximately 1/2 of a battery cycle. Please let us know if I have misinterpreted your post.
Assuming that 7 cycles were recorded before the calibration step, that would mean at least 100% of the standard full capacity would have been used and it should have progressed to at least 8 cycles after the calibration and the two 25% cycles. I thought that battery calibration used pretty much 100% of the battery capacity by design.
I actually freaked out the last time I did battery calibration. iStat was reporting 99% battery health once I turned it on - the first time I'd seen it less than 100%. Then I let it fully charge up and it was reporting 100% again. It was kind of strange when it went to sleep and then precipitously shut off. Everything looked OK as soon as I powered it back on in the morning.

Similar Messages

Macbook battery cycles

Hello, what are the battery cycles for a late 2009 MacBook. I see that it is starting to drain my battery like really fast, here I have been typing this and have watched my battery go down 10%. So I bought this battery app and it says that the cycles is at 350 I do not know if that is good or bad, so I just want some feedback and sugestions.
Thanks

Generally batteries with a cycle count of over 300 are considered depleted. Not that they won't function but they won't do as well as they did previously. I would suggest a new battery. You can purchase from Apple for about $129 in the USA. You may be able to find 3rd party batteries cheaper on eBay.
http://store.apple.com/us/search?find=macbook+battery
http://www.ebay.com/sch/i.html?_from=R40&_trksid=p2043212.m570.l1313&_nkw=macboo k+battery&_sacat=58058
Best of luck.

Macbook pro 2011 battery dropped to 30% after 300 cycles

Hello ,
I have a Macbook pro early 2011 and I have noticed that the battery suddenly is draining too fast , after installing battery health it seems that in 2 weeks the battery dropped from 86% to 30% and there is the service battery sign
Please help !
Charge Information:
Charge Remaining (mAh):    1696
Fully Charged:    Yes
Charging:    No
Full Charge Capacity (mAh):    1696
Health Information:
Cycle Count:    304
Condition:    Service Battery
Battery Installed:    Yes
Amperage (mA):    -133
Voltage (mV):    11953

Cycles mean almost NOTHING, its short term abuse that matters.
1. did you often drain the battery very low?
2. did you often /always have your macbook on charge,......or did you often / always BOTH have your macbook on charge AND in sleep mode?
3. did you often /always play realistic heavy graphics games ON battery on your notebook?
1 or 2 and 3 are harsh on the battery chemistry and therefore its longevity
all batteries are consumables meant to replaced either in their own "due time" or early due to abuse / misuse.
Proper understanding of a battery charge cycle
A charge cycle means using all of the battery’s power, whether that is at once, or over several shorter battery discharges and recharges.
Two examples for clarification:
As a first example, where one fully charged battery is discharged down to 10%, then fully recharged, then using 10% of that full charge, this counts as 1 cycle since the total of both discharges is 100% of a full charge of use.
In the second example, where one fully charged battery is discharged down to 40%, then fully recharged, then using 40% of that full charge, this also counts as 1 cycle since the total of both discharges is 100% of a full charge of use.
While both examples are that of a single charge cycle, the first example is more aggressive against the lithium battery chemistry than is the second example. In short, collective overall gentle shallow or mid-range draining of your lithium battery is a better use condition than is the first example of deep-draining of the battery. While both are quantitatively identical as a single charging cycle, they are wholly different qualitatively on the battery chemistry, which is directly related to its ultimate longevity and health.
In short, it is the near and mid-term life of the battery as relates to its proper care (or lack thereof) that is to be looked after.
Priorities in order of decreasing importance for battery care are:
1. Avoiding deep discharges of the battery.
2. Avoiding having your battery constantly on charge or on charge and in sleep mode.
3. When playing graphics intense games, use your notebook plugged in when possible.
4. Reduction of battery cycles by plugging into power when on the go, or when accessible.
A person who has, for example, 300 charge cycles on their battery and is recharging at say 40% remaining of a 100% charge has a better battery condition state than, say, another person who has 300 charge cycles on their battery and is recharging at say 10-15% remaining on a 100% charge. DoD (depth of discharge) is vitally important on the wear and tear on your Macbook’s battery, much more so than is the counting of charge cycles. There is no set “mile” or wear from a charge cycle in specific. Frequent high depth of discharge rates (draining the battery very low) on a Lithium battery will greatly hasten the lowering of maximum battery capacity.
Understand that a charge cycle is a general parameter of use, but is not directly related to the short-term or mid-term abuse of the battery, which can rapidly hasten a shorter lifespan, regardless of what the actual cycle count on the battery indicates.
Proper considerations for near-term care of the battery is of utmost importance. Abuse of the battery is entirely avoidable, long-term eventual old age deterioration of the battery is entirely unavoidable.
Apple’s adaptive charging system mitigates much potential for accidental battery misuse or abuse; however it is still readily possible to abuse the battery and thereby affect battery health.

Will resetting the MBP also reset the battery cycle count?

Hi All,
I recently purchased a used MBPR (Late 2012) model.
When checking the battery cycle count, I noticed that it says 2.
I am not sure if the original user ever reset the computer, since I noticed he left couple personal files on the computer when it arrived.
I was wondering if anyone can tell me if resetting the Macbook Pro to factory setting well also reset the battery cycle count.
Thanks,

Welcome to Apple Support Communities
If you reset the MacBook to factory settings, battery cycle count stays as it was before. Note that you have the same battery, so the only way to reset the battery cycle count is to install another battery

MacBook stops unintended at 15% of battery capacity?

After recent upgrade to Lion, upgrade of IPhoto and installing Pages (all from the AppStore) on my MacBook (2,26 GHz Intel Core 2 Duo with 4 GB 1067 MHz memory) my MacBook stops at a battery capacity of approximately 12%. It's not a sleep mode and there are no warnings of low battery. Does anyone kno what I can do about this?

Thx Steve
This the information I found on the location you mentioned.
Can you make something out of it? It's Dutch.
There is one line I printed black, it means :Condition: requires maintanance"
But my MacBook is about two years old!
"Informatie batterij:
Modelinformatie:
Serienummer:          W0949L2X49X7A
Fabrikant:          SMP
Apparaatnaam:          bq20z451
Pack Lot Code:          0
PCB Lot Code:          0
Firmwareversie:          103
Hardwarerevisie:          000a
Celrevisie:          130
Ladingsinformatie:
Resterende lading (mAh):          2866
Volledig opgeladen:          Ja
Bezig met opladen:          Nee
Volledige laadcapaciteit (mAh):          2935
Statusinformatie:
Aantal cycli:          276
Conditie:          Onderhoud vereist
Batterij geïnstalleerd:          Ja
Ampèrage (mA):          -859
Voltage (mV):          11792
Systeemvoedingsinstellingen:
Netvoeding:
Schakel sluimerstand van systeem in na (minuten):          60
Schakel sluimerstand van schijf in na (minuten):          10
Schakel sluimerstand van beeldscherm in na (minuten):          15
Schakel sluimerstand uit bij wijziging netspanning:          Nee
Schakel sluimerstand uit bij openklappen van scherm:          Ja
Schakel sluimerstand uit via LAN:          Ja
Tijdens sluimerstand wordt beeldscherm gedimd:          Ja
PrioritizeNetworkReachabilityOverSleep:          0
RestartAfterKernelPanic:          157680000
Batterijvoeding:
Schakel sluimerstand van systeem in na (minuten):          0
Schakel sluimerstand van schijf in na (minuten):          0
Schakel sluimerstand van beeldscherm in na (minuten):          15
Schakel sluimerstand uit bij wijziging netspanning:          Nee
Schakel sluimerstand uit bij openklappen van scherm:          Ja
Huidige voedingsbron:          Ja
Tijdens sluimerstand wordt beeldscherm gedimd:          Ja
Verminder helderheid:          Ja
RestartAfterKernelPanic:          157680000
Hardwareconfiguratie:
UPS geïnstalleerd:          Nee
Informatie wisselstroomlader:
Verbonden:          Nee
Bezig met opladen:          Nee

MacBook Pro -- how many battery cycles before time to replace battery?

Got a 5 year old MacBook Pro. There are around 95 battery cycles on the battery. It's the original battery. How many cycles should I expect before it's time to replace?
I ask because Checkmate is suggesting it's time.

MacBook Pro forum

How to optimize the number of battery cycle count?

Hello,
I'm using my MBP Retina display (Mid 2013 model) and I just found out my battery cycle count is 143. It's been a year since I bought it. Is that count normal? I don't use my laptop other than using it for browsing, Skype calls and word processing. I leave it charged all day and in the evening I use it up until a 60% charge is left. I can avoid this and leave it unplugged. Should I leave it unplugged and use the battery only when it is absolutely necessary to do so, to keep my battery cycle count low? Please suggest and thanks.

Hello,
i may be wrong but I think the number of the battery's cycle is implemented by 1 each time you recharge to 100%. Even if you were for example at 70%, when you plug the charger to reach 100% it is counted as a cycle.

Macbook pro battery cycles

I have 385 battery cycles on my 2009 MacBook Pro 17—no problems yet. How much longer can I expect the battery to hold up, what is the process to get a new battery, and how much will it cost?

Here is a copy & paste straight out of the operating system:
The battery condition tells you whether your battery is functioning normally and approximately how much charge it can hold.
Here are the possible conditions:
Normal: The battery is functioning normally.
Replace Soon: The battery is functioning normally but holds less charge than it did when it was new.
Replace Now: The battery is functioning normally but holds significantly less charge than it did when it was new. You can continue to use the battery until you replace it without harming your computer.
Service Battery: The battery isn’t functioning normally, and you may or may not notice a change in its behavior or the amount of charge it holds. Have your computer checked by an Apple Authorized Service Provider (AASP). You can continue to use your battery before it’s checked without harming your computer.

Why does my brand new MacBook pro have 13 cycles on the battery right out of the box?

Why does my brand new MacBook pro have 13 cycles on the battery right out of the box? Shouldn't it have 0 because it's brand new.

horn0371 wrote:
Why does my brand new MacBook pro have 13 cycles on the battery right out of the box? Shouldn't it have 0 because it's brand new.
Yes it should have 0. I would return it, that means that the battery has already went through 13 full cycles. Perhaps they accidentally resold a returned one as new.

Is there a way of stopping the battery from charging?

Dear Apple Community,
Recently I installed iStat Menus and found that, over the course of this year, my Macbook's charging capacity has dropped 5%. I know this isn't a massive number, but battery performance has become a concern for me. I use my Macbook as a desktop replacement, on the main. It's sitting on a mStand, connected to a large monitor on my desk. I use my Macbook to play games, surf the internet, do work and all that good stuff - basically, I use it for everything. I rarely use the Macbook without it being plugged in. I read on the Apple website that they do not recommend leaving the Macbook on charge permanently and that I should use it on battery at least one a month. As I use my Macbook as a desktop replacement, I don't actually have a lot of opportunity to do this.
My question to you, the community, is: is there a way of stopping the battery from charging, either with the use of an app or a physical device? Ideally, I would love to have my power plugged in BUT only used when the battery drops below 10%. Is this possible with an app?
On the other hand, am I just worrying about nothing? Will my battery be damaged further if I leave the Macbook charging permanently?
Thanks for your help!
Jeremy Reid

Ideally, I would love to have my power plugged in BUT only used when the battery drops below 10%. Is this possible with an app?
The charging characteristics are handled in firmware. There is no app that would be able to do this. You actually would not want to do this anyway. Regularly discharging your battery to 10% will greatly decrease the life of your battery. While it is true that you should not use your system exclusively plugged in, allowing it to run on battery a few hours a week should be fine. Letting the battery regularly run down to (or below) 10% will cause you to use up cycles more quickly than is necessary (thereby reducing the life of your battery). It's really a only a matter of disconnecting your Magsafe connector once in a while.
Leaving it plugged in does not result in it being charged "permanently". It will charge until it is full and then charging will stop. It will only begin recharging when it reaches about 95%.

What EXACTLY is a "battery cycle"?

Hi all,
We have 3 MacBook Pros. My battery has 516 "cycles" and is beginning to act a bit flukey. I've read quite a bit about his and everyone talks about the Apple warranty is good for up to 300 cycles, average life should be 500 cycles - everything looks normal that mine is dying! It's 2 years old anyway. My question . . .
WHAT EXACTLY constitutes a cycle? If I use 1/2 a charge, down to 50% and then charge it full . . . does that count as a cycle? Or . . . should I drain it to zero if I can and recharge that - and that is 1 cycle? Does it count as a cycle everytime I top it off? Or doest it have to be drained to a certain point to be considered a cycle?
What is the magic % if that's so? Does anyone know how Apple does this? I'm just curious? Why run up the "cycles" if you don't have to? Thanks a lot, if anyone knows this!
Larry

A charge cycle means using all of the battery’s power, but that doesn’t necessarily mean a single charge. For instance, you could use your notebook for an hour or more one day, using half its power, and then recharge it fully. If you did the same thing the next day, it would count as one charge cycle, not two, so you may take several days to complete a cycle.
Perhaps the following will help with questions about laptop batteries:
About Batteries in Modern Apple Laptops
Apple - Batteries - Notebooks
Extending the Life of Your Laptop Battery
Apple - Batteries
Determining Battery Cycle Count
Calibrating your computer's battery for best performance
Battery University

MacBook Air 2009 battery draining rapidly.

The charge on my MacBook Air 2009 has been draining rapidly, last night I charged it overnight and this morning when I turned it on the MacBook is only charged to 11%. Any idea what is causing this? My MacBook says that the battery condition is 'Normal' and the MacBook was off whilst it was charging.
I've literally only just had a new HardDrive installed so I'd really hate to have to have a new battery as well.

Follow these steps to see the battery cycle count:
http://support.apple.com/kb/HT1519
Then look at the table below to see the maximum number of cycles your Mac is rated before the battery is considered spent and needs t be replaced.
For your MacBook Air 2009 it is likely 500 cycles.

Battery cycles and percentage left is already at 95%!

I got my macbook air yesterday and it already says that the battery life if only at 95% left 4872mah left
Why does it do that?

I think what he means is the "battery health" shown in istat pro.
I know I let my battery go for a bit today (maybe down to 65%), and after recharging, for some reason my battery cycle count increased from 1 to 4. My charge capacity is 4979 mAh now, I recall it being around 5060 mAh earlier.
This all could just be because it's a new laptop - I'll likely calibrate the battery to see what that does.

Battery cycle is not zero.

I got new MBP i7 17" CTO model.
As I checked battery cycle count, it is 1, not 0.
I knew brand-new product should have cycle count 0.
Is this not new, i.e., refurbished or exchanged one previously?
Thank you.
Best Regards,
ed

I haven't checked every battery in my Macs when they were new, but the ones I did check never said zero. I imagine that their Quality Control department would want to test every battery through at least one charge cycle before shipping them to customers. Possibly during the standard burn-in period that I assume Macs still go through before they leave the factory, where the machine is run for a while to make sure all parts are functional.
I bought a "new" non-Apple battery for a MacBook Pro, and it had 3 cycles on it. I still think that's reasonable for quality control testing. I was told it won't even reach proper calibration until you get to cycle 5 or so.

Macbook shutdowns when battery hits about 20% without warning

I have a Macbook that was recently upgraded to Leopard (v10.5.1). Anytime I am running on battery power and I get around the 20% battery level remaining the system will just do a hard shotoff. No warnings or prompts, it will just shutoff, and I will lose anything I was working on.
Has anyone heard or seen this issue? Any ideas?
Thanks.

Same exact thing happened to me. There's a long thread about this issue here:
http://discussions.apple.com/message.jspa?messageID=5979961
First thing to do is check your battery's health in System Profiler. If your battery's "cycle count" is less than 300, and your health is anything less than "Good," Apple will replace the battery within two years of its purchase date. They may require some cajoling to do it, as noted in the thread, but the two-year warranty is official, as noted here:
http://www.apple.com/support/macbook_macbookpro/batteryupdate/
+"For MacBook and MacBook Pro systems with Intel Core Duo processors, this program extends repair coverage on the battery for up to two years from the date of purchase of the computer."+
+"Affected batteries will have one or more of the following symptoms: ... Battery exhibits low charge capacity/runtime when using a fully charged battery with a battery cycle count (as shown in System Profiler) of less than 300."+
Of course the oddity in all this seeming hardware mess is Leopard. I admit, the shutdowns without warning only started after I upgraded, and others have noted the same thing. Did Leopard uncover a problem with my battery, or exacerbate it? All I know is that my new battery is working great, fingers crossed....

MacBook stopped counting battery cycles

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