Battery capacity after 10 weeks only 90% ??

Hello community!
I hope I'll get some information here, since I am a new mac user
Hope you guys can help?!
Here's the thing: I got my macbook pro in october 2010 (mid 2010 model)
I've been using coconut capacity monitor since the beginning and always monitored the battery life. Yesterday I noticed, that coconut says battery capacity is 90% of the original capacity! Coconut says that I did around 48 load cycles so far.
my question: What am I doing wrong here? I always try to work with the mbp until it runs out of battery; I don't plug it in before, no charging when the battery is not completely empty. How can it happen, that the capacity reduces that fast?
What should I do in order to preserve the battery life? Is it possible to restore the 100% battery capacity by recalibrating it several times (like the apple support page advices) ??
Thank you for you answers and your help in advance!!
Kind regards,
griesTraum

With 48 load cycles in only ten weeks, you're working your battery very hard. And always running the battery down to zero before recharging it is a bad practice that will age your battery prematurely. If your work and lifestyle don't require you to consume the full capacity of the battery almost daily, don't do it.
It's not unusual to see the battery's reported Full Charge Capacity (and consequently its "health") fluctuate up and down by several percentage points from day to day and week to week, particularly when it's relatively new. If you give the battery at least a little use every few days, it should be calibrated every two or three months. Calibrate it now or as soon as it's convenient for you, then try to keep it plugged into AC power most of the time, using the battery for just an hour or two every day or two "to keep the electrons moving," as Apple says. This will be an ideal use pattern for the longevity of your battery. If it doesn't fit your life, don't do it: the battery exists to serve you, not you to serve it.
The best summary of useful information about MBP batteries that I know of is here:
http://discussions.apple.com/thread.jspa?threadID=1764220
If after following these suggestions for a few weeks, your battery's health continues to decline steadily and rapidly, you may have a defective battery. But until it shows less than 80% health, you're unlikely to get anything from Apple other than a report that it is "within specifications." So if you think it may be defective, wait until it shows 75-78% health for a least a week or two, and continues to show less than 80% after a new calibration. Then take it to an Apple Store, where they have a specific test they can run on it, and ask to have it tested. If it's defective, you'll get a free replacement.

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Battery capacity after 200 load cycles - what is normal?

My battery capacity has been fairly steady at around 92%(5100 mAh) between cycles 125 and 200. I baby it and always use a cool pod to prevent overheating. Then, within 3 charge cycles, it dropped to around 4500-4600 mAh (82-84%). Apple care told me that their engineers consider this capacity as normal. Upon asking what would be considered as not normal, I was told Apple would not release this information. But it is general knowledge that Apple guarantees 80% after 300 cycles. Good luck if my battery will last that long at that level. After another 10 cycles, the battery is still at that 82% plus level.
I am concerned about this sudden drop: is it the microchip on the battery, that is going?
Message was edited by: Jürgen Kraus

I've never heard, nor read that Apple "guarantees" anything like what you say. Apple claims:
"Battery Lifespan
For Apple notebooks with removable batteries — such as previous generation MacBook and MacBook Pro computers — a properly maintained battery is designed to retain up to 80% of its original capacity at 300 full charge and discharge cycles. You may choose to replace your battery when it no longer holds sufficient charge to meet your needs."
There is not guarantee mentioned or implied in that statement. Whether any particular battery still has 80% life at 300 cycles is anyone's guess. It depends entirely on the manner in which it was used, operating temperatures it was subjected to and so on.
IMO, if you are over 200 cycles and you are starting to feel that the battery is not holding sufficient charge for your needs, it's time to shop for a new one. Batteries are a consumable item - they will fail with enough time and use - that much is guaranteed. It is a function of unavoidable internal oxidation and degradation of chemical components, not of the "smart" battery control circuitry.

Battery Capacity after 3 cycles

Hi all,
I have a late 2013 rmbp. I've been reading up a lot on how to best treat the built in battery to maximize battery life. This laptop is only 1 week old and I've discharged once to about 40% and used the unit on batter a second time to about 50%. I'm now planning on using it on the power adapter mode when at my desk and using it on battery mode when going mobile. My question is though is that according to my coconut battery app, I'm already only at 97% max capacity! Is this normal? This battery has only been through 3 cycles of charging.
The max charge went from 6330mAh to 6153mAh in the 1 week I've owned this computer. Since I'm new to the macbook world, I was wondering if this is normal and was hoping someone could give me some insight to how fast the Max Charge capacity drops over time in relation to the Design Capacity. I'm still within my return period if I need to return this computer :/
For reference, my battery was manufactured 4/24/2014.
many thanks!

Read: https://www.apple.com/batteries/
This laptop is only 1 week old and I've discharged once to about 40% and used the unit on batter a second time to about 50%. I'm now planning on using it on the power adapter mode when at my desk and using it on battery mode when going mobile. My question is though is that according to my coconut battery app, I'm already only at 97% max capacity! Is this normal? This battery has only been through 3 cycles of charging.
The max charge went from 6330mAh to 6153mAh in the 1 week I've owned this computer.
It's best not to concern yourself with this degree of detail. Over a long period of time, its maximum charge capacity will decrease. Over a shorter period of time its maximum charge capacity may decrease or increase. One week and three charge cycles is not enough to draw any conclusions about anything. Typically, the maximum capacity percentage will settle to a value in the mid - 90s and will stay there for a long time.
Your MacBook Pro's battery is the product of decades of research and is going to last for years, perhaps for as long as you own your Mac, or want to own it before it eventually becomes functionally obsolete.
All batteries are wear items that will eventually need to be replaced. Budget 50¢ a week for battery depreciation and you will have more than enough saved to replace it when the time comes.
I'm now planning on using it on the power adapter mode when at my desk and using it on battery mode when going mobile.
That's a fine strategy. Follow Apple's usage recommendations, but don't obsess over such minutia. On the other hand if you are seeking to indulge your paranoia concerning over- or under- charging your Mac, the proper methods by which you must obsess about its incessant need for proper care and pampering, and to hear admonishments about the a parade of horribles that will result in your failure to acquiesce to superstition and myth, your needs will be met in by a number of charlatans in a variety of fonts and garish colors. You will believe them because they will validate what you have already decided to be true.

2009 MacBook Pro - Battery at only 87% capacity after 5 months?

Hello,
I purchased my MacBook Pro in November. System Profiler and CoconutBattery report my battery capacity at 4756 mAh, or 87% of the initial 5450 mAh capacity. I've followed the steps to calibrate my battery twice over the past two weeks, which brought it up one percent from 86% to 87%. I've done, apparently, 82 charge cycles.
Is there a problem with my battery? I don't have AppleCare, but am assuming that a battery replacement is the kind of thing covered under warranty without it.

It is definitely on the low side for a battery in an MBP13, nusilver. These batteries are rated to 1000 cycles at 80% of original capacity (compared to SU's older model which is rated for 300 cycles at 80% capacity). My own MBP 13 , after just over 100 cycles since August last year, is still sitting on over 98%.
They may not be prepared to change it until it drops below the "official" figure of 80%, but I'd certainly take it in for testing to an Apple Store or AASP. A battery that has lost capacity at this sort of rate is likely to fail a "stress test" in which case I suspect they will replace it immediately anyway.
Cheers
Rod

20 month old MBP with only 80% battery capacity

Been noticing my 09 alu uni body 13" MBP now has a battery capacity of just 80%, according to Coconut Battery. I realise this app might not be too accurate, but I only checked it as I've been noticing a reduction in battery life recently.
I've been using MB's for years and employ all the usual good practices, I also regularly recalibrate the battery, although I understand these new non-replaceable models don't require it, nonetheless, it can do no harm.
My question is, is such a reduction in the batteries capacity normal on this machine after just 20 months use?
BTW- The use consists of running on mains at work during working hours, resting over night during the week, use on battery/mains at home at the weekend. According to Coconut the battery has had 348 cycles. Again, no idea how accurate this app is!
I have 3 years cover on the machine, so it it's deemed this is not usual I can pay the Apple store a visit, but I'd be interested in the views of other users whether this is normal or not.
Thanks.

If you think that's necessary. But losing 20% capacity in almost 2 years is pretty good for any battery. It's just that we can monitor it more accurately now.
You can get your current capacity vs design capacity via Terminal without coconut:
ioreg -l | grep Capacity
^that's a -L and then a |

My 15" MBP is two weeks old but battery capacity is already lowering significantly?

I've had my 15" MBP for about two weeks now and CoconutBattery is already telling me that the capacity is down to 95% (design capacity - 6900 mAh, current capacity - 6586 mAh) Also, the details show that the battery is 19 weeks old and has gone through 23 battery loadcycles. I also just unplugged my laptop from a full charge and after less than 45 minutes of simple web browsing, it has already fallen to 67%. While I do use my laptop quite a bit, I've always used Macbooks because I find the battery life to be pretty durable for the machine. I only had to change my pre-2008 Macbook Pro battery once in almost 4 years. Can someone tell me if something seems wrong and should I contact AppleCare about it?

Why do people always recommend to recalibrate the battery and then link that document from apple about calibrating the battery that specifically states that the batteries are pre calibrated???
"Portables with built-in batteries
Current Apple portable computer batteries are pre-calibrated and do not require the calibration procedure outlined in this article. These computers use batteries that should be replaced only by an Apple Authorized Service Provider."

10 Week Old MacBook & Current Battery Capacity already at 94%

Hello everyone, I recently bought a new macbook (11/09) and mainly use it thru its power adapter, although I do use the battery occasionally. Yesterday I decided to perform a battery calibration and it went as follows: The battery was fully charged when I unplugged the computer from it's power supply (the original battery capacity also showed 100% via Coconut). I took the battery all the way down to about 1% then re-charged it completely only to return and see that the Current Battery Capacity is 94%. I've only had 10 load cycles in the 2.5 months I've had it. Here's my battery info:
Battery Information:
Model Information:
Serial Number: W0943KWNJ9X7A
Manufacturer: SMP
Device name: bq20z451
Pack Lot Code: 0000
PCB Lot Code: 0000
Firmware Version: 0103
Hardware Revision: 000a
Cell Revision: 0130
Charge Information:
Charge remaining (mAh): 5163
Fully charged: Yes
Charging: No
Full charge capacity (mAh): 5163
Health Information:
Cycle count: 10
Condition: Normal
Battery Installed: Yes
Amperage (mA): 0
Voltage (mV): 12530
System Power Settings:
AC Power:
System Sleep Timer (Minutes): 20
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
Battery Power:
System Sleep Timer (Minutes): 10
Disk Sleep Timer (Minutes): 10
Display Sleep Timer (Minutes): 3
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: 0x0050443a
Charging: No
Power Events:
Next Scheduled Events:
Type: Sleep
Scheduled By: Repeating Event
Time: 1/24/10 11:45 PM
Is there something going on with my battery or is it normal to lose 6% on a calibration? As I said, I have been typically using it with the power cord connected vs. just the battery. Any insight would be greatly appreciated. Thanks.

You should take it off the charger every so often, so the battery can drain and recharge. That will help some.
I can't see losing 6% of the battery as new. However, I also don't know how long the MacBook sat there prior to your purchasing it, etc. So while it seems odd, it also isn't outside the realms of possibility.
Doc

I just bought a new macbook pro 13-inch. I ran coconut battery test and it says age of the macbook is 22 weeks. And the battery load cycles shows 4 and battery capacity is 96%. Is this all normal? Does anyone have same issues?

I just bought a new macbook pro 13-inch 6 days ago. I ran coconut battery test and it says age of the macbook is 22 weeks. It shows 4 battery load cycles and battery capacity is 96%. Is this all normal? Does anyone have same issues?

"Is this all normal?"
Yes.
"Does anyone have same issues?"
What issues?
Coconut indicates an approximate battery capacity, and 96% is excellent. During testing and run-in, the MBP is charged and discharged, and a cycle count of 4 is appropriate.

Battery empty after long inactivity

Dear fellow users, I have observed strange battery behavior with my Twist. I do not mean anything related to the battery life when computer is on, but when I shut the computer down. When I leave it off couple of days and then restart it, the battery capacity (how much it is charged) seems be at the same level, when I powered the computer off. But it happened to me twice already that I shut down the computer (no sleep, there would be a blinking light visible) and did not use it for several weeks. When I restarted Twist after several weeks of being off, the battery was completely empty (e.g., at 4% or 5% when it was originally at 50% or 99%). As the battery behaves normally when computer is running, I am wondering what a cause could be? Is there some software setting influencing power states (e.g., sleep / deep sleep / complete shut down)? Any other ideas? Thank you. Best, Pavel

UPDATE (new info): it happened again, but now more specifically. 1) Two weeks ago, I used twist on battery, turned it off with 50% battery remaining, and was not able to use it for more than a week (busy at work) --> battery level almost did not change after this, BUT 2) Two days ago, I used Twist connected to the power net (electricity), the battery was full at the end, then I turned Twist off ... only to find out that after 2 days (!) of no use the capacity of the battery was at 70% level. Any idea what is going on? I do not think there is a problem with the battery itself, but Twist "does something" sometimes...

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

Battery service warning at only 40 cycles

Hi all,
I'm running a MBP early 2011 15 incher, and just recently upgraded to Mavericks. Lately by total battery percentage capacity has been fluctuating quite a bit, jumping between high 80s and low 90s, which I figure was pretty normal behavior. Had been dropping to mid 80s recently. After about a week of non-use, turned it on to see a service battery warning by my indicator, and a total battery percentage of only 76%! Rather alarming especially the light usage. I leave it plugged in a lot of the time, and drain it every now and then to about 20% and bring it back up. With only about 40 cycles over the last couple 2.5 years, I'm pretty shocked, especially with claims of 1000 cycles and only using about 20% total batt capacity.
I've reset the SMC in the past but battery capacity by coconut still shows some fluctuation. Do I have a bad battery?
Thanks

Theres a chip on the mac called the system management controller which controls battery management etc resetting it might help you
http://support.apple.com/kb/HT3964

Low Battery Capacity?

Hello everyone, I'm a new Mac User, and I'm new to laptops in general. I have noticed that after owning my mac for approx. 6 weeks, the battery life has not been as great as some people seem to be getting on this forum. I calibrated the battery as soon as I took the computer out of its box, but it seems that even with the screen brightness on its lowest, airport and bluetooth off, I can squeeze maybe three hours out of it. I downloaded the app Coconut battery, and it says that my Maximum battery capacity is 4883 mAH and its original was 5200. Does this seem low to anyone? Any help is appreciated. Thanks in advance.

I've been monitoring my battery capacity with Coconut Battery for about 2 weeks now and have some interesting results:
Date Max Capacity
2006-06-30 97% (5084 mAh)
2006-07-01 90% (4729 mAh)
2006-07-02 95% (4984 mAh)
2006-07-03 96% (5006 mAh)
2006-07-04 96% (5006 mAh)
2006-07-07 95% (4977 mAh)
2006-07-14 96% (5038 mAh)
2006-07-16 88% (4585 mAh)
2006-07-17 97% (5063 mAh)
2006-07-20 97% (5059 mAh)
It also indicates that I have 53 cycle loads. But I have only calibrated the battery twice.
I was under the impression that battery capacity steadily went down with use but the results seems to indicate that is can go up and down. One thing I did notice was that my capacity went down fairly dramatically early on (about one week in to owning the MacBook) from 5200 mAh down to about 5050 mAh.
I'm wondering if CoconutBattery is giving correct readings or if it's just my limited knowledge of battery life. If anyone spots anything unusual going on with my battery I'd interested to know.
iMac G4 15" flat screen : MacBook 1.83 (Tiger) Mac OS X (10.3.9)

7 months MBP battery capacity

Hi,
I'm trying to find out the range of battery capacity for a 7 month MBP. The original battery capacity was 4600 mAh and now it only has 4439 mAh left. Is this normal?
I do calibrate my battery every 2 weeks and I tried resetting the SMC.
Any input would be appreciated!

The figures look fine, PaRaDa, but that is a pretty low cycle count for 7 months usage. Do you run it on the mains most of the time or is it just not heavily used?
These batteries tend to last best if you vary the usage pattern a bit, running off the battery for a while every day or two, etc., without necessarily taking it all the way down to flat.
see http://www.apple.com/batteries/notebooks.html for some useful advice on maximising your battery's life.
Recalibrating every few weeks is a good idea if your MBP is generally hooked up to the charger, or if you don't use it a great deal, but every fortnight is probably overkill.
I'd be aiming for a bit less frequent full recalibration, and maybe a bit more general use "off the charger", to get the best out of it.
But as Fred says, 96% is still pretty good after 7 months.
Cheers
Rod

Oh NO! Calibration is actually sucking my battery capacity!

from all those articles, I learn that calibration is such a good thing to keep the battery power, yet sadly find out that after every calibration my battery capacity lost some 50 ~ 100 mAh! and whenever this happens, I thought that I might did the calibration wrongly, so then I did it again and again !
Here's how it looks like, only after 41 load cycles(i bought MBP for 1 and half month)
ORIGINAL: 5500
1st calibration, about 5400
2nd calibration, 5350
3rd calibration: 5256, 95%
4th calibration: 5179, 94%
Please help! how can I restore the battery capacity ? what is the calibration actually doing??

It is nothing to worry about at this stage. What happens is that the PMU (Power Management Unit) needs time to get a feel for your typical power usages so when computers are new they tend to flip-flop around a bit. Just use you battery a bit more and give a week or so to settle down.
The more you use your macBook on battery the more accurate this reading will become. If things really deteriorate after say a month or two then call Applecare. They will replace it.

Battery capacity after 10 weeks only 90% ??

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