Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Apple Hardware > Notebooks > MacBook Air

Reply
 
Thread Tools Search this Thread Display Modes
Old Sep 19, 2013, 12:21 PM   #1
didztran
macrumors newbie
 
Join Date: Jul 2013
Should it sleep or should it be turned off?

Might look like a stupid question. Honestly, it won't change my life, but it's just something out of curiosity.

I just bought the 13-inch mid-2013 MBA and the battery is really outstanding ! However, I was just curious about how to optimize the battery...

My question here is, we know that booting the computer takes little to no time, but still takes some energy, and being on standby also takes some energy. So, I was wondering, after how long does the standby energy equals to the energy to boot the MBA? Just so I know, let's say it's after two hours, then I know that if I plan on only using my computer in 3 hours, I should turn it off, or else if it's in 30 minutes, I should just let it sleep.

Please no comments about how it won't make any signifiant difference, I know !
didztran is offline   0 Reply With Quote
Old Sep 19, 2013, 12:25 PM   #2
Cevap
macrumors newbie
 
Join Date: Aug 2012
I always have my Air on sleep mode and I don't really see any drain in the battery as long as I exit all the programs and windows
Cevap is offline   0 Reply With Quote
Old Sep 19, 2013, 12:27 PM   #3
nepalisherpa
macrumors 65816
 
Join Date: Aug 2011
Location: USA
Quote:
Originally Posted by didztran View Post
Might look like a stupid question. Honestly, it won't change my life, but it's just something out of curiosity.

I just bought the 13-inch mid-2013 MBA and the battery is really outstanding ! However, I was just curious about how to optimize the battery...

My question here is, we know that booting the computer takes little to no time, but still takes some energy, and being on standby also takes some energy. So, I was wondering, after how long does the standby energy equals to the energy to boot the MBA? Just so I know, let's say it's after two hours, then I know that if I plan on only using my computer in 3 hours, I should turn it off, or else if it's in 30 minutes, I should just let it sleep.

Please no comments about how it won't make any signifiant difference, I know !
The only time I turn off my laptop is when I am transporting it in a bag for extended period of time. Otherwise, I just shut the lid.
__________________
Macbook Air 11" 2013/i7/8GB RAM/250GB SSD
iPhone 5 32GB Black
nepalisherpa is offline   0 Reply With Quote
Old Sep 19, 2013, 12:30 PM   #4
s15119
macrumors 6502a
 
Join Date: Nov 2010
I almost never turn off my computers. They use little battery sleepinh
s15119 is offline   0 Reply With Quote
Old Sep 19, 2013, 12:41 PM   #5
didztran
Thread Starter
macrumors newbie
 
Join Date: Jul 2013
Quote:
Originally Posted by nepalisherpa View Post
The only time I turn off my laptop is when I am transporting it in a bag for extended period of time. Otherwise, I just shut the lid.
Yeah, that's exactly what I do, but does anybody know what's this period of time?
didztran is offline   0 Reply With Quote
Old Sep 19, 2013, 12:53 PM   #6
Mrbobb
macrumors 601
 
Join Date: Aug 2012
Quote:
Originally Posted by didztran View Post
Please no comments about how it won't make any signifiant difference, I know !

None of us have taken the time to find this answer in a laboratory.

U do it and let us know!
__________________
Solution: FREE, Explanation: Is gonna cost ya.
Mrbobb is offline   0 Reply With Quote
Old Sep 19, 2013, 12:58 PM   #7
Gav2k
macrumors 601
 
Gav2k's Avatar
 
Join Date: Jul 2009
Makes no difference with the air what so ever. It has a long sleep period (up to 30 days) so why not use the feature?

I sleep my MacBook Pro with no ill effects from being carried around!!
Gav2k is offline   0 Reply With Quote
Old Sep 19, 2013, 01:07 PM   #8
silvershamrock
macrumors member
 
Join Date: Aug 2013
Location: Edmonton, AB
The only time my MBA gets turned off is if I need to shut it down or restart it for some specific purpose (OSX update, cleaning the monitor and keyboard, etc). Otherwise, it just sleeps when I'm not using it.
__________________
You know you're a geek if you've ever entered your email under "Address" on a delivery form.
silvershamrock is offline   0 Reply With Quote
Old Sep 19, 2013, 01:09 PM   #9
GGJstudios
macrumors Westmere
 
Join Date: May 2008
There are dozens of "sleep or shutdown" threads where you'll find many Mac users run months at a time without shutting down. Either is perfectly fine. One thing to consider is that there are maintenance scripts that run on a daily, weekly and monthly schedule. If your Mac is in sleep mode at the scheduled time, the scripts will run the next time your Mac is awake. If your Mac is shut down at the scheduled time, the scripts won't run until the next scheduled time. If your Mac is always shut down at those times, the scripts will never run, unless you manually run them or change the default schedule. You can manually run the scripts using the Maintidgit widget.
GGJstudios is offline   0 Reply With Quote
Old Sep 19, 2013, 01:16 PM   #10
jdechko
macrumors 68040
 
Join Date: Jul 2004
I'm not sure of the answer, but here's how you could check.

1) Download & install coconut battery

Power to Boot

2) Open Coconut battery and take note of the current charge (not capacity) in mAh.
3) Power off the computer and do a cold boot (i.e.: don't do a restart).
4) Open Coconut battery and take note of the current charge. The power required to boot would be the difference between #2 and #4 (#2 - #4 = power to boot)

Power to Sleep

5) Use the computer as you normally would to establish a new baseline and give the battery some time to exercise.
6) Repeat step #2.
7) Sleep the system (close the lid) for some length of time, say 1 hr.
8) Wake the system from sleep.
9) Repeat step #4.

That should give you some indication of power consumption with respect to shutting down vs. sleeping. Some simple math would give you the optimal "break even point". For instance, if a cold boot uses 15 mAh, and sleeping takes 5 mAh/hr, then you should sleep your computer for less than 3 hours and shut it down for longer than 3 hours if you want to conserve every little bit of power.

10) Optional: Ignore steps 1-9 and just sleep the damn thing!

EDIT: So I couldn't post this without trying myself. Here are my results:

Starting charge: 2167 mAh
After cold boot: 2136 mAh
Power to Boot: 31 mAh

Starting charge: 2125 mAh
After 15 min Sleep: 2122 mAh
Power to sleep (extrapolated): 12mAh

Break even point: Just over 2.5 hours.

Last edited by jdechko; Sep 19, 2013 at 01:46 PM. Reason: Test
jdechko is offline   0 Reply With Quote
Old Sep 19, 2013, 02:10 PM   #11
didztran
Thread Starter
macrumors newbie
 
Join Date: Jul 2013
Ah, thanks for the answer ! I might do it a try myself and post my results, but yeah anyway I was just planning to make it sleep. I didn't know it might not run some script if it was turned off, another reason to do it.
didztran is offline   0 Reply With Quote

Reply
MacRumors Forums > Apple Hardware > Notebooks > MacBook Air

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Similar Threads
thread Thread Starter Forum Replies Last Post
After sleep under 10.9 MBA doesn't wake up - sleep failure code? ratboy90 MacBook Air 4 Nov 16, 2013 05:44 AM
MBP won't wake from sleep using apple Remote and display recover from sleep in clamsh aoaaron MacBook Pro 1 Jan 10, 2013 10:33 AM
Mac Pro Snow Leopard Display will Sleep but Computer will not Sleep benos Mac Pro 0 Oct 26, 2012 06:56 PM
Sleep turned into hibernate? spoonie1972 MacBook Pro 3 Oct 4, 2012 08:23 AM

Forum Jump

All times are GMT -5. The time now is 10:17 AM.

Mac Rumors | Mac | iPhone | iPhone Game Reviews | iPhone Apps

Mobile Version | Fixed | Fluid | Fluid HD
Copyright 2002-2013, MacRumors.com, LLC