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MBP 13" Mid-2012 Current max battery down to 80% in 75 cycles

Hi


I have 1.6 years old Mid-2012 MBP 13" and the battery level is gone down to 80% of the Orignial Max in 75 cycles. I use MBP mostly on weekends, and it is shutdown on weekdays. I did full discharge and recharge multiple times but the Current max never gone above 85% since when I bought the macbook. Unfortunately the warrenty period is gone.

Can you please suggest me how to re-caliberate battery so that current Max goes atleast above 95%


Screenshots and MBP information attached below.



User uploaded file




Hardware Information:

MacBook Pro (13-inch, Mid 2012)

MacBook Pro - model: MacBookPro9,2

1 2.5 GHz Intel Core i5 CPU: 2 cores

4 GB RAM


Video Information:

Intel HD Graphics 4000 - VRAM: 1024 MB


System Software:

OS X 10.9.2 (13C64) - Uptime: 14 days 12:20:11


Disk Information:

APPLE HDD HTS547550A9E384 disk0 : (500,11 GB)

EFI (disk0s1) <not mounted>: 209,7 MB

My Computer (disk0s2) / [Startup]: 499,25 GB (295,55 GB free)

Recovery HD (disk0s3) <not mounted>: 650 MB


MATSHITADVD-R UJ-8A8


USB Information:



Apple Inc. Apple Internal Keyboard / Trackpad


Apple Computer, Inc. IR Receiver


Apple Inc. BRCM20702 Hub

Apple Inc. Bluetooth USB Host Controller


Apple Inc. FaceTime HD Camera (Built-in)


FireWire Information:


Thunderbolt Information:

Apple Inc. thunderbolt_bus


Kernel Extensions:

com.paragon-software.filesystems.ntfs (95)


Launch Daemons:

[System] com.adobe.fpsaud.plist 3rd-Party support link

[System] com.google.keystone.daemon.plist 3rd-Party support link

[System] com.microsoft.office.licensing.helper.plist 3rd-Party support link

[System] com.oracle.java.Helper-Tool.plist 3rd-Party support link


Launch Agents:

[System] com.google.keystone.agent.plist 3rd-Party support link

[System] com.oracle.java.Java-Updater.plist 3rd-Party support link


User Launch Agents:

[not loaded] com.facebook.videochat.[redacted].plist 3rd-Party support link


User Login Items:

iTunesHelper

Battery Health

BitTorrent

Google Drive

SpeechSynthesisServer

TuneupMyMac


Internet Plug-ins:

FlashPlayer-10.6: Version: 12.0.0.77 - SDK 10.6 3rd-Party support link

QuickTime Plugin: Version: 7.7.3

Flash Player: Version: 12.0.0.77 - SDK 10.6 3rd-Party support link

Default Browser: Version: 537 - SDK 10.9

o1dbrowserplugin: Version: 5.2.4.18058 3rd-Party support link

SharePointBrowserPlugin: Version: 14.0.0 3rd-Party support link

googletalkbrowserplugin: Version: 5.2.4.18058 3rd-Party support link

JavaAppletPlugin: Version: Java 7 Update 21 Outdated! Update


Audio Plug-ins:

BluetoothAudioPlugIn: Version: 1.0 - SDK 10.9

AirPlay: Version: 2.0 - SDK 10.9

AppleAVBAudio: Version: 203.2 - SDK 10.9

iSightAudio: Version: 7.7.3 - SDK 10.9


iTunes Plug-ins:

Quartz Composer Visualizer: Version: 1.4 - SDK 10.9


3rd Party Preference Panes:

Flash Player 3rd-Party support link

Java 3rd-Party support link

Paragon NTFS for Mac ® OS X 3rd-Party support link


Old Applications:

None


Time Machine:

Time Machine not configured!


Top Processes by CPU:

1% EtreCheck

1% AppleSpell

1% Safari

1% WindowServer

0% Battery Health


Top Processes by Memory:

156 MB com.apple.WebKit.WebContent

127 MB softwareupdated

115 MB Mail

98 MB Safari

61 MB WindowServer


Virtual Memory Information:

324 MB Free RAM

1.48 GB Active RAM

1.06 GB Inactive RAM

647 MB Wired RAM

7.05 GB Page-ins

446 MB Page-outs

MacBook Pro, OS X Mavericks (10.9.2)

Posted on Mar 19, 2014 11:59 PM

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Question marked as Best reply

Posted on Mar 20, 2014 2:11 AM

If you have not already tried, try resetting SMC.


Reset SMC. http://support.apple.com/kb/HT3964


Choose the method for:

"Resetting SMC on portables with a battery you should not remove on your own".

8 replies

Mar 20, 2014 2:40 AM in response to iTej

iTej wrote:


I did full discharge and recharge multiple times but the Current max never gone above 85% since when I bought the macbook.


Full discharges of the MBP battery will shorten its life span.


Can you please suggest me how to re-caliberate battery so that current Max goes atleast above 95%

Calibration of batteries are not necessary. According to the information you have provided, your battery is still serviceable.


Please read these Apple support articles on proper use of MBP batteries:


https://www.apple.com/support/macbookpro/batteries_power/


Ciao.

Mar 20, 2014 11:55 PM in response to iTej

Cycles dont mean ANYTHING at all except in long term old age of the batteries use.




iTej wrote:

I did full discharge and recharge multiple times


Then youve been ruining your battery




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?


1 or 2 are harsh on the battery chemistry and therefore its longevity




You can easily ruin a battery with LOW cycle counts.


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 much more important on the wear and tear on your Macbook’s battery than the count 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 hasten the lowering of maximum battery capacity.


All batteries in any device are a consumable meant to be replaced eventually after much time, even under perfect use conditions.



➕If the massive amount of data that exists on lithium batteries were to be condensed into a simplex, helpful, and memorable bit of information it would be:


1. While realistically a bit impractical during normal everyday use, a lithium battery's longevity and its chemistry's health is most happy swinging back and forth between 20% and 85% charge roughly.


2. Do not purposefully drain your battery very low (10% and less), and do not keep them charged often or always high (100%).


3. Lithium batteries do not like the following:

A: Deep discharges, as meaning roughly 10% or less on a frequent basis.

B: Rapid discharges as referring to energy intensive gaming on battery on a frequent basis (in which case while gaming, if possible, do same on power rather than battery). This is a minor consideration.

C: Constant inflation, as meaning always or most often on charge, and certainly not both in sleep mode and on charge always or often.


From Apple on batteries:

http://www.apple.com/batteries/notebooks.html

http://support.apple.com/kb/HT1446

"Apple does not recommend leaving your portable plugged in all the time."

Mar 21, 2014 2:57 AM in response to iTej

By Apple standards, a battery with a 'health' of 80% or more is considered still functional. I suggest a free evaluation by a technician at an Apple store genius bar. There is a slim possibility that they may deem the battery defective, but I have my doubts.


A review of the articles that I posted a link to may also be useful.


Ciao.

MBP 13" Mid-2012 Current max battery down to 80% in 75 cycles

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