Battery capacity 97%?

Hi everyone!
I bought a Macbook Pro 13" for a week ago, and I have charged it only 3 or 4 times, but coconutBattery says that my battery capacity is 97% :o I have also calibrate the battery once.
This is my first mac and I'm really worried... Is this normal?
Message was edited by: HarisValjevac

Hi HarisValjevac - welcome to the discussion forums. Yes this is normal, it is not a perfect science. You did everything correct. The capacity will fluctuate a bit up and down, no worries mate. Have fun !
Here is some more causal reading: http://discussions.apple.com/thread.jspa?threadID=1764220
Hope this helps.

Similar Messages

Mid 2010 MacBook Pro battery capacity at 89% with 64 cycles

Hello everyone,
I have a 13" mid 2010 MacBook Pro that I got around Christmas time. I downloaded coconutbattery a couple days ago and when i used it then My battery capacity had been 91%. So I thought that this was odd because of how new the computer is still (15 wks old with 64 battery cycles) so I read about how the battery needs to be recalibrated from time to time and after doing so (followed the directions perfectly) My capacity is now down to 89%. Should this be something to be concerned about or is this normal?

It's quite normal and sometimes a recalibration can see things go up as well as down

MacBook Pro Mid 2010 Battery Capacity

I've read a few threads about this, mostly about battery capacity rapidly dropping after an install of ML. I installed ML when it first came out, and just noticed the drastic decrease in battery life about 3 weeks ago. My capacity could have potentially been dropping since I installed ML (and I just now noticed it), or it may have just started a couple weeks ago when I noticed. I'm not sure.
Either way, my MacBook Pro (Mid 2010) now has a battery life of less than an hour, even with extremely light processor load. I contacted Apple about this, and the tech said that the battery was rated for 1000 cycles. I'm currently at 220, and my battery capacity is a pathetic 30%. He said that since I wasn't under warranty, there was nothing they could do besides replace the battery - which I really want to avoid since I'm a broke college student.
Is there anything I can do here? I understand that I'm not under warranty anymore, and this wouldn't be a problem if my battery was degrading normally. However, getting 1/5th of the recommended battery life is pretty sad. I've read that doing a clean install of Mountain Lion/Lion might help. Is there a way I can do this without having to back up all my files? I don't have an external hard drive or anything.
It seems this is a common topic in these forums. Any help or links to solutions would be great. If this is answered in a similar topic, I'll gladly delete.
Here is the system info on my battery, incase that might help:
Battery Information:
Model Information:
Serial Number:          9G030040MD3MA
Manufacturer:          DP
Device Name:          bq20z451
Pack Lot Code:          0
PCB Lot Code:          0
Firmware Version:          201
Hardware Revision:          2
Cell Revision:          158
Charge Information:
Charge Remaining (mAh):          1453
Fully Charged:          No
Charging:          Yes
Full Charge Capacity (mAh):          1939
Health Information:
Cycle Count:          220
Condition:          Service Battery
Battery Installed:          Yes
Amperage (mA):          1507
Voltage (mV):          12214
System Power Settings:
AC Power:
System Sleep Timer (Minutes):          0
Disk Sleep Timer (Minutes):          10
Display Sleep Timer (Minutes):          15
Wake on AC Change:          No
Wake on Clamshell Open:          Yes
Wake on LAN:          Yes
Current Power Source:          Yes
Display Sleep Uses Dim:          Yes
PrioritizeNetworkReachabilityOverSleep:          0
Battery Power:
System Sleep Timer (Minutes):          15
Disk Sleep Timer (Minutes):          10
Display Sleep Timer (Minutes):          10
Wake on AC Change:          No
Wake on Clamshell Open:          Yes
Display Sleep Uses Dim:          Yes
Reduce Brightness:          Yes
Hardware Configuration:
UPS Installed:          No
AC Charger Information:
Connected:          Yes
ID:          0x0100
Wattage (W):          60
Revision:          0x0000
Family:          0x0085
Serial Number:          0x00cb7bc3
Charging:          Yes
Thanks in advance

Condition:
     Service Battery
You need a new battery.

Macbook Pro 11,3 High End Retina battery capacity

HI,
As recent as 2 weeks ago I receieved a macbook pro that I purchased online. However due to the physical problems I had another one sent to me by apple. While waiting for the shipping company to pick up the problematic macbook pro I thought I'd compare the battery life on both of these units. to my suprise the old unit was performing better in terms of battery life.
New Macbook Pro 11,3 Capacity: 8688 mAh
2 Weeks Old Macbook Pro 11,3 Capacity: 8969 mAh
My questions are as follows:
1) Is this to be expected?
2) Should I complain and get it replaced again?
3) Anything I could do to increase the capacity on the new MPR?
Appreciate your input on this, cheers!
Happy holidays!

Great to hear :) I was really worried about my battery capacity as well when I got my 2nd mac.
The reason I exchanged my first one was it had really bad battery life. I tried all sorts of solutions and nothing seemed to work. It would always show I had a high battery capacity but the battery life was just terrible. I decided to exchange it and when I got my replacement I noticed it had low battery capacity. It turned out to be a great laptop it has much better battery life and it's capacity went up after I put a couple cycles on it.

Battery Capacity Question

This morning my battery capacity was at 48% after I calibrated it over night due to the system profiler telling me to "check battery." After using my computer for a little while without it being plugged in, my battery was down to about 45min remaining for power. Then I closed the lid and put it to sleep. After about an hour I opened it and immediately the message popped up saying that my computer was running on reserve power and I should plug it in. Now, my current battery capacity is at 26%.
Does anyone know why this has happened? Should I just get a new battery?
Thanks!

It means that you most likely need a new battery. If your computer is still under warranty then bring it there. If it's out of warranty, then you might have to pay. If your battery has less than 300 charge cycles then you can ask if they are willing to replace it for free or a minimal charge since Apple said their battery should held 80% life after 300 cycles.

My battery capacity decreases per charge!!!

Hi guys I need help, I am very frustrated about this matter , This is my first macbook pro retine late 2013 the latest one out yet 4gb ram baseline model with the dubal core i5. I started playing LOL or League of Legends an online game a few weeks back.
When I did start I was completely hooked and played multiple hours even with the battery charger plugged in. The battery lost its total capacity from 6300 its about 6200 then it fell 6150 ok then I statred carying ok I LOVE MY MAC AND ITS BATTERY.
So i went like ok i will play max 40 mins per day, fine huh 1 time per charge cycle make sure the charge cycle is 20 hrs long I have been trying to do this more or less BUT EVEYTIME I PLAY THE GAME EVEN IF THE CHARGE drop is only 30% my total battery capacity drops.
I am checking this through MULTIPLE apps and every time i play the drop is bloody 0.5 percent and i CANT TAKE IT and when i dont play on a chrge cycle there is NO DROP IN THE OVERALL capacity.
Note i take soo much care when i pay i charge it to 100 and keep it ice cold when i play and its not plugged in. Any advice are the apps wrong is my capacity decresing are macs not meant for gaming or if i conture down this path will i have to eventully replace my battery just any adivce or thoughts on this matter will be VERY APPRECIATED!!!

When Taxing the system, Running it Hard as most all games do, it will draw power from both the AC charger and the battery at the same time.
The AC charger Apple supplies is not large enough to do both Power the system and charge the battery, or even keep the same charge on the battery, when the system is working hard.
As to the overall capacity of the battery that will go down with the increase of charge cycles.
What you are seeing is completely normal for all Mac notebook computers.

Fluctuating battery capacity. can you give any tips to maintain my 596 cycles? (1 year old MBP 2012 13")

battery capacity went from from 80.4% to 78% to 86% within the same day. is this normal?
i alraeady have 596 cycles
1year old mac with applecare
before i'am always draining my battery, now that i knew that it is bad, what should i do now?
any tips and suggested routine?

Here is a list of Apple support documents regarding batteries.
http://support.apple.com/kb/ht1446
Look at the articles under the 'Optimizing battery life' category.
Ciao.

Fluctuating Battery Capacity

Yesterday my MBP had a funny turn relating to it's recognised battery capacity. I had been using it for most of the day on fairly boring tasks and I was running it on battery power when all of a sudden it shut down on me. I plugged in charger and fired it up and when I looked at the battery it was at 0% however the capacity had fallen by over 75%.
Originally it was about
93% of original
4440mAh
270 load cycles
10months old
All of a sudden it was
16% of original
762mAh
I used System Profiler and Coconut to check the levels.
I left it charging for a couple of hours until it said it was full then I turned it off. I let it cool, took the battery out, dusted it, polished it and put it back.
When I turned the machine back on the battery capacity was back to 93% original.
The basic question is has anyone seen this before? Quickly followed by software glitch or intermittent hardware fault.
Cheers for any help.

The design capacity of a new battery is often exceeded slightly by its actual capacity. You got a good one.
My late-2008 MBP's battery has a design capacity of 4600 mAh, but it started off at about 4800 and still has never gone as low as 4600, after 11 months and 64 cycles. Right now it shows 4622.
It isn't possible for your MBP to have operated on battery power for 24 hours without sleeping. Something is wrong, not with your battery but with your story.

Concerned about falling battery capacity on rMBP

Hello all, I'm starting to worry a bit about my battery capacity vs design capacity on my retina macbook pro 15". It's a early 2013 model that I bought in July. I know that apple guarantees the battery will have at least 80% of it's design capacity after 1000 cycles, but I'm worried mine is going to fall far short of that. Here's my coconut battery info:
As you can see, I've only had 60 cycles on the battery, the computer is barely half a year old, and it's already down 6%, under 8000 mAh. Should I be concerned/take it to the apple store? I know they won't replace my computer since I'm far outside of my 14 days, but still wondering if they'll do something. Will they even do anything before the battery falls below 80% design capacity?
I waited to post because I know battery capacity often fluctuates from 5% below to 5% above design frequently and will go up and down with use, but mine has steadily decreased, and has never increased. Every time I check coconut battery, it's 10-50 mAh lower than it was. My macbook does stay plugged in a lot, but I also make a point of using the battery at least once a week to keep the electrons flowing, and most weeks it gets off the charger more like two or three times. Often the battery will get used down to at least 50 or 60 percent before it gets plugged back in, sometimes even as low at 15 or 20 percent. I've tried draining it until it goes to sleep and then letting it charge to full again, but it didn't change anything. I didn't think it would, since lithium based batteries don't suffer memory issues, but I thought maybe it was just an error in measurement by the system.
Speaking of that, I did reset the NVRAM/PRAM and the SMC (multiple times). Only one of the times I reset the SMC did the light turn orange and then charge more, but it didn't change the max capacity number at all.
I see a lot of people posting their cocunut results/system information screen and finding they actually have above design capacity. Did I just get a lemon battery, or is it because I have it plugged in so much?
Thoughts? Thanks!

Apple guarantees that if your battery is well taken care of and not abused, however your battery looks fine.
You state: ~ As you can see, I've only had 60 cycles on the battery
Cycle counts dont account for much. People (some) leave their macbooks always hooked on power and worse still in sleep mode and on power and this can ruin a battery in "50 cycles", ergo it means little.
As for the 5% power fluctuation this means absolutely nothing since charge is just an estimate and the 5% is within that range.
Information:
Bad discharging or battery use conditions:
Heat (due to environmental conditions or due to rapid discharges from heavy use = gaming / video editing)
Rapid discharging of the battery frequently causes chemical changes over time in the battery leading to decrease capacity and resistance of current flow.
The very worst use of your battery is often draining the battery very low, and worse still letting it remain in such a state.
*Most long-term rapid damage to the battery occurs from discharging it with high loading (gaming) conditions but paramount is avoiding deep and frequent low DOD (depths of discharge) in use.
Undesirable charging or charged conditions:
High perpetual SOC (state of charge), where the battery is always or very often connected to charge
Parasitic loading where the battery is both usually on and charging or worse both always charging and in sleep mode, since this induces mini-cycling of the battery.
Bad general handling conditions:
Temperature use conditions when either too hot (95F and above) or too cold (50F and below)
Storing your battery away with a low charge (40% and less) long-term.
Considerations:
Your battery is subject to chemical aging even if not in use. A Lithium battery is aging as soon as its made, regardless.
In a perfect (although impractical) situation, your lithium battery is best idealized swinging back and forth between 25 and 85% SOC (state of charge) roughly.
Further still how you discharge the battery is far more important than how it is either charged or stored short term.
Ultimately counting charge cycles is of little to no importance. Abuse in discharging (foremost), charging, and storing the battery and how it affects battery chemistry is important and not the ‘odometer’ reading, or cycle counts on the battery.
Everything boils down to battery chemistry long term, and not to an arbitrary number, or cycle count.
Keep your macbook plugged in when near a socket since in the near end of long-term life, this is beneficial to the battery.
http://www.apple.com/batteries/notebooks.html
"Apple does not recommend leaving your portable plugged in all the time."
General rule to remember of Lithium batteries is:
Never drain them LOW & dont always/often store them HIGH
While cycle count is commonly seen to be the “miles” on your Lithium Ion pack cell in your Macbook, which they are, this distinction is not a fine line at all, and it is a big misconception to “count charge cycles”
*A person who has, for example, 300 charge cycles on their battery and is recharging at say 50-60% remaining of a 100% charge has better battery usage and care than another person who has 300 charge cycles at say 15% remaining on a 100% charge.
DoD (depth of discharge) is far more important on the wear and tear on your Macbook battery than any mere charge cycle count. *There is no set “mile” or wear from a charge cycle in general OR in specific.    As such, contrary to popular conception, counting cycles is not conclusive whatsoever, rather the amount of deep DoD on an averaged scale of its use and charging conditions.
(as a very rough analogy would be 20,000 hard miles put on a car vs. 80,000 good miles being something similar)
*Contrary to some myths out there, there is protection circuitry in your Macbook and therefore you cannot overcharge it when plugged in and already fully charged
*However if you don’t plan on using it for a few hours, turn it OFF (plugged in or otherwise) ..*You don’t want your Macbook both always plugged in AND in sleep mode       (When portable devices are charging and in the on or sleep position, the current that is drawn through the device is called the parasitic load and will alter the dynamics of charge cycle. Battery manufacturers advise against parasitic loading because it induces mini-cycles.)
Keeping batteries connected to a charger ensures that periodic "top-ups" do very minor but continuous damage to individual cells, hence Apples recommendation above:   “Apple does not recommend leaving your portable plugged in all the time”, …this is because “Li-ion degrades fastest at high state-of-charge”. This is also the same reason new Apple notebooks are packaged with 50% charges and not 100%.
LiPo (lithium polymer, same as in your Macbook) batteries do not need conditioning. However...
A lot of battery experts call the use of Lithium cells the "80% Rule" ...meaning use 80% of the charge or so, then recharge them for longer overall life.
Never let your Macbook go into shutdown and safe mode from loss of power, you can corrupt files that way, and the batteries do not like it.
The only quantified abuse seen to Lithium cells are instances when often the cells are repeatedly drained very low…. key word being "often"
The good news is that your Macbook has a safety circuit in place to insure the battery doesn’t reach too low before your Macbook will auto power-off. Bad news: if you let your Macbook protection circuitry shut down your notebook at its bottom, and you refrain from charging it for a couple days...the battery will SELF-DRAIN to zero (depending on climate and humidity)…and nothing is worse on a Lithium battery being low-discharged than self-draining down to and sitting at 0
Contrary to what some might say, Lithium batteries have an "ideal" break in period. First ten cycles or so, don't discharge down past 40% of the battery's capacity. Same way you don’t take a new car out and speed and rev the engine hard first 100 or so miles.
Proper treatment is still important. Just because LiPo batteries don’t need conditioning in general, does NOT mean they dont have an ideal use / recharge environment. Anything can be abused even if it doesn’t need conditioning.
From Apple on batteries:
http://support.apple.com/kb/HT1446
http://www.apple.com/batteries/
Storing your MacBook
If you are going to store your MacBook away for an extended period of time, keep it in a cool location (room temperature roughly 22° C or about 72° F). Make certain you have at least a 50% charge on the internal battery of your Macbook if you plan on storing it away for a few months; recharge your battery to 50% or so every six months roughly if being stored away. If you live in a humid environment, keep your Macbook stored in its zippered case to prevent infiltration of humidity on the internals of your Macbook which could lead to corrosion.

MacBook Pro battery capacity dropped to 2%?!?!?!

Hi Everyone
I've recently noticed my battery capacity has dropped DRAMATICALLY in the past month. It's the 2.0GHz quad-core i7 15 inch MacBook Pro, early 2011 model. It is 15 months old, however I bought it brand new (box not even opened) from an eBay seller on 16th June 2011. I always keep it plugged in and very rarely take it off the charge, only if I want to go and work in another room but don't want to bring the adaptor. I know that's not technically good for the battery but it can hardly be *terrible* can it?
I've noticed that the battery was getting very low and after reading a forum post somewhere I downloaded coconutBattery. A few weeks ago, it read that my battery capacity was 68%, which to me sounded pretty low. Then about a week ago I looked again and it read 37% and I knew something was definitely wrong. I check today and it's dropped to 2%!!!!! I would certainly expect some loss of capacity but surely not this so quickly?
I use the laptop on a desk with "cool balls" underneath to lift it up and provide it with a bit of ventillation to keep it from getting to hot. The magsafe charger has a small tear just under the aluminium head which I covered with black insulation tape as soon as I saw it. Would this be the reason the battery is dying so quickly?
I'm thinking I'm going to have to buy a new battery at some point but I don't want to spend £100 on one if it's just going to happen again!
Thanks
ps. here's a screenshot of the coconutBattery window

Yes, you have to pay full price for it when purchsing it from Apple....
There are third party suppliers out there if you wish to buy cheaper ones but I'm not sure if they perform as good as the apple supplied battery...
good luck

2 day old MacBook Pro at 98% battery capacity

I'm a little bit concerned about the lifespan of my new MacBook Pro's battery. When i recieved the machine i performed a battery calibration as Apple recommends. I then charged and discharged again. I was concerned when Coconut battery (not always accurate) told me my battery was at 98% total capacity. Is this normal? after 2 cycles my capacity is down 2% .
I'm surprised because I've never seen this on my old iBook which usually loses 1% capacity per month.
I've read that these lithium ion batteries have a memory, that the cells not being used stop functioning because they are not needed. Is this true?
When at home should i keep the machine plugged in? My iBook used to be fine when i took it to school and drained it, then charged it at night. Opinions?

More or less, yes, I do. Actually turns 5-days old today and at 97.8% of capacity (5330 mAh compared to 5450 when new) after 4 battery loadcycles. Coconutbattery says this is 97%, but my math is a bit higher at 97.8%. Clearly this rate of decline is not sustainable.
So my question to you was, did "don't worry, enjoy" mean that in your experience, the initial few percentage points of battery capacity is blown off quickly, but the battery capacity will quickly stabilize to something that is still acceptable?
My battery on a full charge this morning (day 5 of ownership) lasted 3:50, with display at 50%, no use of the optical drive, Wifi on, bluetooth off, and running Mail, Safari, Firefox, iCal, Excel & Activity Monitor (to keep an eye on things). No work was done in Excel, Firefox or iCal, just Mail & Safari. So, I, too, am a bit concerned about being nowhere near 7 hours. Or 5 hours, for that matter. So, short battery life and losing 2.2% of capacity in 4 loadcycles and 5 days is concerning, and tempting to connect the dots.

How to INCREASE Battery Capacity

Just drop the advertising - I know that battery capacity varies, and that the capacity of the phone battery - regardless of models, will degrade as the phone is used.
I contest the "specialists" to provide some straight simple guidelines to how one can treat a battery to increase the capacity.
That the layers gets closer and short-curcuits is a known reason. So, exposure to heat will make the substance that keep the layers apart into gas that escapes the battery. Now how can such a battery be fixed? In old days with NiCd we could freeze the battery to -36C, that would make the iodine to solid. if iodine is still used, this will still work. Other semiconductors needed more than -100C to regain state - but with access to liquid Nitrogen, that was fully possible. Maybe Ni is not so common, but freon is, and LPG (Butane/Propane liquified). A home freezer can at times go as low as -38C.
So, can charging in heat / cold change the capacity of the battery?
Other: If I completely drain the battery between every charge - will that improve it?
If I start to recharge it when it is 80% of capacity, and disconnect immediately and use everything, Bluetooth, WLAN - to drain it to 80% and the recharge - can I restore the good old capacity?
if the battery degrades to 10% of capacity, is it possible to restore it? How?
Don't change anything that works.

That, and I've been reading to not constantly charge it, or leave it in at 100%. It can be charged too much from what I've seen. I've had mine since 2006 almost 2 years, and till recently left it charging all the time. Not sure that's been a good idea. This is Battery University website information...
gure 1: Permanent capacity loss of lithium-ion as a function of temperature and charge level.
High charge levels and elevated temperatures hasten permanent capacity loss. Improvements in chemistry have increased the storage performance of lithium-ion batteries.
The mentioning of limited service life on lithium-ion has caused concern in the battery industry and I will need to add some clarifications. Let me explain:
If someone asks how long we humans live, we would soon find out that the longevity varies according to life style and living conditions that exist in different countries. Similar conditions exist with the batteries, lithium-ion in particular. Since BatteryUniversity bases its information on the feedback from users as opposed to scientific information derived from a research lab, longevity results may differ from manufacturer' specifications. Let's briefly look at the various living conditions of the lithium-ion battery.
The worst condition is keeping a fully charged battery at elevated temperatures, which is the case with running laptop batteries. If used on main power, the battery inside a laptop will only last for 12-18 months. I must hasten to explain that the pack does not die suddenly but begins with reduced run-times.
The voltage level to which the cells are charged also plays an important role to longevity. For safety reasons, most lithium-ion cannot exceed 4.20 volts per cell. While a higher voltage boosts capacity, the disadvantage is lower cycle life. Figure 2 shows the cycle life as a function of charge voltage.

IPad Mini: battery capacity inconsistent

I notice that even if only down to 90% battery capacity, if I leave my iPad Mini (64g Verizon) plugged into my computer overnight, it will only charge up to about 98% or 99%. Also, the iPad itself my display 98% but when synced with iTunes, iTunes may show it at 99%. I've numerous iPads over the past couple of years and this is the first time I've seen this inconsistent behavior. I'm running 6.0.2 and I've done a complete device reset several times.
Am I missing something?
Thanks in advance!

By the way, the mini is only a week old and has been exhibiting this behavior since day 1.

What is the original battery capacity in mAh for MBPr?

My laptop battery is very poor (4 hours) in %25 birghtness.
My Original battery capacity is 8400 mAh
Cycle count 5
What is the original battery capacity of the laptop should be?

When I charge my battery, brand new rMBP it says design capacity of 8460, current capacity of 8565, but current charge of only 8142.. why would they all be different?

Bad Battery Capacity?

My macbook has a battery capacity of 86% and it is 10 months old. Is this bad? I get about 2 hours of batter life with wifi on, bluetooth off, screen dimmed. I need to know if this is good or bad.
I have a screenshot on flickr.
http://www.flickr.com/photos/7354645@N03/467524562/

Read this.
http://www.apple.com/support/macbook_macbookpro/batteryupdate/
From what it says your battery is covered under the replacement guarantee if the update did not fix your problems.
Mort

How can I check the percentage of my iPhone 5's original battery capacity?

I'm wondering if there's any way I can check what the capacity of my iPhone 5's battery is compared to its original capacity. I know Apple will replace the battery for free if it is under 50% of the original capacity since it's still covered under the one-year warranty but I'd rather know that's the case before I send it in and go without a phone for a week.

A problem does exist; it takes significantly less time for me to deplete my battery now than it did when I bought my phone. Please stop acting like this discussion is over just because you cannot answer my question. I would like to seek the knowledge of other regarding ways to check my battery capacity. I appreciate your suggestions, but I purchased an iPhone 5 because it was an upgrade to the iPhone 4 and it was supposed to have the same battery life. However, 20 months after I purchased my iPhone 4 the battery still lasted longer than the battery in my 11 month old iPhone 5. My warranty expires in a few weeks and I need to know now whether I should send it because once the warranty expires a battery replacement is going to set me back $80 plus shipping fees.

Battery capacity 97%?

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