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

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I just wanna know how much is Macbook pro 15 inch battery capacity in mah?
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After you read Barney-15E's advised source, you can download "coconut battery" from "macupdate.com".
Mine is below, and it show design capacity, current capacity, current stored charge.

MacBook Pro battery had accumulated more than a 1000 charges, and stopped functioning unexpectedly. Went and got the battery replaced. Just saw that SMC Firmware 1.6 update deals with this. Possible to get my money back?

MacBook Pro battery had accumulated more than a 1000 charges, and stopped functioning unexpectedly. Went and got the battery replaced. Just saw that SMC Firmware 1.6 update deals with this. Possible to get my money back?

The firmware update corrects an error that may occur, however the techs would have checked the condition of the battery prior to installing a new one. If the battery was questionable, the firmware update was really not too important.
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Just to update you. Took it to apple and they replaced the battery. Told me there was no way that the battery should have lost 6-7% in such a short time.
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Manufacturer:          SMP
Device Name:          bq20z451
Pack Lot Code:          0
PCB Lot Code:          0
Firmware Version:          201
Hardware Revision:          000a
Cell Revision:          158
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Charging:          Yes
Full Charge Capacity (mAh):          5761
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Thanks again

MacBook and MacBook Pro Battery Update

http://www.apple.com/support/macbook_macbookpro/batteryupdate/
Apple has recently discovered that some batteries used in its MacBook and MacBook Pro notebooks may have battery performance issues. Apple is offering a software update that is designed to improve battery performance.
The battery update is available immediately via Software Update or downloadable here.
Note: The factors causing the performance issues do not present a safety risk. You may continue to use your current battery.
This battery update should be run on all MacBook and MacBook Pro computers and extra batteries that were purchased between February 2006 and April 2007.
If, after you have installed the battery update, your battery has any of the symptoms listed below, please make a reservation to bring your computer with its battery to your local Apple Retail Store, or contact an Apple Authorized Service Provider (AASP), or call your local Apple Support Contact Center. If Apple or an AASP determines that your battery is eligible for replacement, you will receive a new battery, free of charge, even if your MacBook or MacBook Pro is out of warranty.
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.
Identifying an affected battery
Affected batteries will have one or more of the following symptoms:
Battery is not recognized causing an “X” to appear in the battery icon in the Finder menu bar.
Battery will not charge when computer is plugged into AC power.
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.
Battery pack is visibly deformed.
Note: If your MacBook or MacBook Pro battery does not have any of the symptoms noted above, your battery does not need to be replaced.
Next Steps
To participate in this worldwide program, your MacBook or MacBook Pro battery must show the symptoms noted above. If it does, please make a reservation to bring your computer and battery to your local Apple Retail Store, or contact an Apple Authorized Service Provider (AASP), or call your local Apple Support Contact Center. The U.S. support number is 1-800-275-2273. If you are located outside the U.S., please see Apple's international contact list for your local Apple Technical Support phone number. An Apple technical support representative or an Apple Authorized Service Provider (AASP) will determine if the battery is eligible for replacement, free of charge. Customers are responsible for transportation costs to eligible AASPs and retail stores.
If a replacement battery is sent to you via airmail, it is important that you return the older battery to Apple so that it can be properly recycled.
This program extends repair coverage on the battery for up to two years from the date of purchase of the computer for Intel Core Duo-based MacBook and MacBook Pro computers. Apple will continue to evaluate the battery update program and will provide further extensions as needed. Apple also reserves the right to modify the program if other solutions that address the battery performance issues become available.

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.
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HT204347 Do you connect the charger in the MacBook Pro battery damage if using device ?

Do you connect the charger in the MacBook Pro battery damage if using device ?
i am sorry i not good speak english

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2008 early macbook pro battery normal and charging but stays at 0% Won't charge.
I have reset the SMC and PRAM
The charge light is orange on the magsafe charge cord.
Do I need new battery or is it a hardware issue?
Model Information:
Serial Number:          ˇ
Manufacturer:          SMP
Device Name:          ASMB012
Pack Lot Code:          4
PCB Lot Code:          0
Firmware Version:          0dc0
Hardware Revision:          0
Cell Revision:          0
Charge Information:
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Fully Charged:          No
Charging:          Yes
Full Charge Capacity (mAh):          4008
Health Information:
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Message was edited by: mcj2112

Reset the SMC > http://support.apple.com/kb/HT3964
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I really don't know what any of the below means, but here goes:
Please help as I am no tecky.
Thank you
Catherine.
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As you are aware, batteries (no matter what manufacturer) are consumable devices and is only covered for one year (barring any type of abuse). With your purchase date being in 2007, this would not be covered under your AppleCare extended service plan.
Suggest you make an appointment for your local Apple Genius Bar and they can perform a Battery & Adapter test. You can always start the process by contacting AppleCare (1.800.APL.CARE) and log down your case number after you have completed your discussions with them, so when you get to the Genius Bar, it will save you time. At that point they will be able to determine if the battery is defective and commence the replacement process. Include your case number in the notes section of your Genius Bar appointment form. This tests will check your MagSafe adapter and battery at the same time and takes about a couple of minutes if that. Hope this helps guide you through the process.
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MacBook Pro battery capacity dropped to 2%?!?!?!

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