Q: Battery life dropped considerably on Mountain Lion.

Check your SMV version by opening "about this mac", then click "more info" then "system report".... you'll find a bit like this:

L2 Cache (per Core):          256 KB

  L3 Cache:          4 MB

  Memory:          4 GB

  Boot ROM Version:          MBA41.0077.B0F

  SMC Version (system):          1.73f65

....when you click "Hardware".

Mine SMC version was 1.6xxxx before, it is now 1.7xxx so I suppose the SMC did update in one of the updates.

"Power Nap" support only the machine that based on "flash memory". The one using spinning "harddisk" is not supported.  I think their are only 2 models that is supported. Macbook Air and a new Macbook Pro 15" Ratina Display.  Please read the specification carefully.

ah ok sorry i thought this MacBook Pro (Retina, Mid 2012) the mid 2012 is my mac...

here is the version of my SMC

  Boot ROM Version:          MBP91.00D3.B08

  SMC Version (system):          2.2f38

is it updated???

thanks.

wow, I actually had no idea that they update the firmware but without updating its info in the system description? Strange, i thought some users could report that it had been indeed updated in system properties...

But then again, would they not list that SMC version in their SMC sheet for all models?

For those unsure as to what we are discussing, the SMC link will help:

http://support.apple.com/kb/HT1237

Thanks for the link.... wow, that's weird.... it says my SMC version is for the mid 2011 Air 11"..... I definitely have the 13"!! What's that all about???

the SMC version of MacBook Pro 13" mid 2012 dont have the SMC version in the link that you gave how can we check if its updated =(

The article is wrong. The 11" and 13" versions are switched.

do i need to do the calibration because it says here...

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.

MacBook 

• MacBook (13-inch, Late 2009) and later

MacBook Air

• MacBook Air, all versions

MacBook Pro

• MacBook Pro (13-inch, Mid 2009) and later
• MacBook Pro (15-inch, Mid 2009) and later
• MacBook Pro (Retina, Mid 2012)
• MacBook Pro (17-inch, Early 2009) and later

and my laptop is this..

MacBook Pro

13-inch, Mid 2012

Processor  2.9 GHz Intel Core i7

Memory  8 GB 1600 MHz DDR3

Graphics  Intel HD Graphics 4000 512 MB

Software  OS X 10.8.2 (12C54)

thanks...

Unless you have an older Mac with a removeable battery you do not need to calibrate.

Today I talked to tech support and they told me to do so with my MacBook Pro (Retina, Mid 2012). So.. I guess this is not a problem.

i dont have any mac aside from what i'm using now =( ... thanks

is it same procedure for calibration???

thanks..

I did this for my RMBP: http://support.apple.com/kb/HT1490?viewlocale

For PowerBook G4 (15-inch Double-Layer SD), MacBook (all models), and MacBook Pro (all models)

The Wind wrote:

 

I did this: http://support.apple.com/kb/HT1490?viewlocale

 

For PowerBook G4 (15-inch Double-Layer SD), MacBook (all models), and MacBook Pro (all models)

Did you read this (from the document you linked)

----------------------------------------------------------------------

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.

MacBook 

• MacBook (13-inch, Late 2009) and later

MacBook Air

• MacBook Air, all versions

MacBook Pro

• MacBook Pro (13-inch, Mid 2009) and later
• MacBook Pro (15-inch, Mid 2009) and later
• MacBook Pro (Retina, Mid 2012)
• MacBook Pro (17-inch, Early 2009) and later

Yes, I read it. I mentioned this to customer service. but they still told me to do so.

clerenlas wrote:

 

The article is wrong. The 11" and 13" versions are switched.

Actually it looks to be correct.  It's easy to confuse the core SMC versions with the Hardware Overview version listed for a particular MacBook model. 

It would seem logical that SMC 1.7 would read 1.7xxx in a MacBook's Hardware Overview.  However that's not the case.  The Hardware Overview number is proprietary - specific to that model, year, etc.  So if the HO version is listed as 1.66f60 it could well be that the core SMC version is actually 1.7.  Or HO version 1.33f8 actually is running SMC core version 1.2.  The HO version won't change when the SMC firmware is updated.

So it's a bit "Apples and oranges".