Register FAQ / Rules Forum Spy Search Today's Posts Mark Forums Read
Go Back   MacRumors Forums > Apple Systems and Services > Mac Basics and Help

Reply
 
Thread Tools Search this Thread Display Modes
Old Feb 26, 2011, 02:31 PM   #1
Evolvere
macrumors member
 
Join Date: Aug 2007
Location: York, UK
Is sleep allowed while calibrating a MacBook's battery?

I just thought I'd see if I could clarify a minor point regarding the batttery calibration process listed here: http://support.apple.com/kb/HT1490

After the laptop has been resting in its fully charged state for two hours and one disconnects the power adapter, is it permissible to allow the laptop to sleep at any point during the complete drain of the battery? i.e. could I disconnect my MacBook Pro in the morning while its sleeping and use it over the course of a day, putting it to sleep at various points, and then complete the drain of the battery in the evening? Or does the laptop have to be properly on from the start and during the entire drain of the battery?

Thanks for any help.
Evolvere is offline   0 Reply With Quote
Old Feb 26, 2011, 03:43 PM   #2
GGJstudios
macrumors Westmere
 
Join Date: May 2008
Quote:
Originally Posted by Evolvere View Post
is it permissible to allow the laptop to sleep at any point during the complete drain of the battery?
Yes, you can let it sleep while draining, but it will take much longer to drain the battery that way. Why would you want to have it sleep, when the intention is to use the battery to drain it?
This should answer most, if not all, of your battery questions:
Apple Notebook Battery FAQ
GGJstudios is offline   0 Reply With Quote
Old Feb 26, 2011, 04:34 PM   #3
Evolvere
Thread Starter
macrumors member
 
Join Date: Aug 2007
Location: York, UK
Quote:
Originally Posted by GGJstudios View Post
Why would you want to have it sleep, when the intention is to use the battery to drain it?
Because I carry my laptop with me most days. I'm a student and use it on campus. If calibrating the battery required the laptop to be fully on during the whole process, I would have to connect the power adapter as soon as I got home, wait for it to fully charge, wait for it to rest in that state for two hours, and only then begin calibrating. The fact that sleep doesn't interrupt the process, means I can use my MacBook all day at university, necessarily with periods of sleep, and finish draining the battery on the evening, saving me a lot of time and inconvenience.

Thanks for the quick reply and the link to the FAQ. So am I right in thinking that the only things that can interrupt the calibration process are shutting the computer off or reattaching the power adapter?
Evolvere is offline   0 Reply With Quote
Old Feb 26, 2011, 04:36 PM   #4
GGJstudios
macrumors Westmere
 
Join Date: May 2008
Quote:
Originally Posted by Evolvere View Post
So am I right in thinking that the only things that can interrupt the calibration process are shutting the computer off or reattaching the power adapter?
Yes. Or interrupting the 2 hours fully charged with the AC power connected.
GGJstudios is offline   0 Reply With Quote
Old Nov 15, 2012, 09:46 AM   #5
pmontanarella
macrumors 6502
 
Join Date: Oct 2012
Location: Rio de Janeiro, Brazil
Quote:
Originally Posted by GGJstudios View Post
Yes. Or interrupting the 2 hours fully charged with the AC power connected.
I am calibrating my battery right now and in the first portion of calibration (charging to 100%) i shut down my computer and restarded a few times. Does that mean I interrupted calibration or is only when discharging?

Thanks,
Pietro
__________________
"Entrepreneurship is living a few years of your life like most people won't, so that you can spend the rest of your life like most people can't."
pmontanarella is online now   0 Reply With Quote
Old Nov 15, 2012, 09:53 AM   #6
GGJstudios
macrumors Westmere
 
Join Date: May 2008
Quote:
Originally Posted by pmontanarella View Post
I am calibrating my battery right now and in the first portion of calibration (charging to 100%) i shut down my computer and restarded a few times. Does that mean I interrupted calibration or is only when discharging?

Thanks,
Pietro
Once it's fully charged, allow it to remain plugged in for 2 hours, without shutting down or restarting. It's fine if you restarted or shut down while you were charging it. I assume you're referring to the MacBook in your signature.
GGJstudios is offline   0 Reply With Quote
Old Nov 15, 2012, 09:57 AM   #7
pmontanarella
macrumors 6502
 
Join Date: Oct 2012
Location: Rio de Janeiro, Brazil
Quote:
Originally Posted by GGJstudios View Post
Once it's fully charged, allow it to remain plugged in for 2 hours, without shutting down or restarting. It's fine if you restarted or shut down while you were charging it. I assume you're referring to the MacBook in your signature.
Thanks,
Yes I was referring to the one in my signature (just got a replacement battery).
__________________
"Entrepreneurship is living a few years of your life like most people won't, so that you can spend the rest of your life like most people can't."
pmontanarella is online now   0 Reply With Quote

Reply
MacRumors Forums > Apple Systems and Services > Mac Basics and Help

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off

Forum Jump

Similar Threads
thread Thread Starter Forum Replies Last Post
Applescript shell script won't run when display is sleeping BlueRevolution Mac Programming 6 Feb 19, 2011 03:11 AM
I think my Unibody Macbook's battery is bad ndassassin MacBook 3 Aug 10, 2009 04:32 PM
My Macbook's battery is running out faster than usual... Bman3221 MacBook 3 Oct 17, 2008 12:09 PM
Is it necessary to calibrate/condition the battery? goose1873 MacBook Pro 14 Feb 28, 2008 07:23 AM
Is the MacBook's Battery Good? R.R.Mac MacBook Pro 14 Nov 22, 2006 05:07 AM


All times are GMT -5. The time now is 08:34 AM.

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

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