Calibrating a Macbook battery -
Register FAQ Members List Calendar Search Today's Posts Mark Forums Read Advertise

LinkBack Thread Tools Display Modes
Old Aug 1st, 2006, 01:14 PM   #1
Full Citizen
Pat McCrotch's Avatar
Join Date: Jun 2006
Posts: 682
Calibrating a Macbook battery

Hi, I've been reading the Macbook owners manual and it says that you should calibrate your battery every 2 months or so. Do any of you guys/gals do this? If so how do you do it?

It states in the manual that you should fully charge the battery and then let the battery "rest" while plugged in for two hours, then unplug the battery and get the computer to completely run out of power and go into sleep mode and leave it in sleep mode for five hours or longer.

It doesn't say if the computer must be used continuously while the battery uncharges or if you can put your computer into sleep mode and finish draining the battery later...

What's everyone's opinion on this? Just curious...
Pat McCrotch is offline   Reply With Quote
Sponsored Links
Old Aug 1st, 2006, 03:17 PM   #2
Resident Curmudgeon
SINC's Avatar
Join Date: Feb 2001
Location: Central Alberta
Posts: 86,945
Send a message via AIM to SINC
I use mine until the battery dies and it shuts off, then follow the recharge instructions from Apple. Got my MBP in April and have done this twice.

Was pointless though as they recalled my battery, so will have to start all over again.
Visit my website:
St. Albert's Place On The Web
(Over 3.7 million folks have.)
SINC is offline   Reply With Quote
Old Aug 1st, 2006, 05:15 PM   #3
Honourable Citizen
jdurston's Avatar
Join Date: Jan 2005
Location: Waterloo
Posts: 1,162
As long as you drain it completely without charging it all part way through I think it's fine.

The wait time afterwards is to let the battery cool down I think. Maybe the calibration works better on a cool battery. I think internal resistence goes up with temperature so a cool battery may calibrate more accurately.

I think fully cycling your battery occasionally is more important than getting a perfect calibration, for the battery's life expectancy.
jdurston is offline   Reply With Quote

Thread Tools
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
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
MacBook Pro Battery Recall lmbrrt Anything Mac 30 Oct 15th, 2006 02:17 AM
Black MB13 v. MBP15 Moscool Anything Mac 14 Jul 4th, 2006 11:30 PM
PSA: MacBook Pro Battery swelling battery Atroz Anything Mac 3 Jun 23rd, 2006 05:37 PM
Macbook Battery and Capacity Phat Bastard Anything Mac 11 May 23rd, 2006 12:57 AM
MacBook Pro Info! (Battery and DVI to Video) SonicBlue82 Anything Mac 11 Jan 29th, 2006 02:29 AM

All times are GMT -4. The time now is 09:05 AM.

Powered by vBulletin® Version 3.8.8
Copyright ©2000 - 2020, vBulletin Solutions, Inc.
vBulletin Security provided by vBSecurity v2.2.2 (Pro) - vBulletin Mods & Addons Copyright © 2020 DragonByte Technologies Ltd.
Copyright 1999 - 2012, All rights reserved. ehMac is not affiliated with Apple Inc. Mac, iPod, iTunes, iPhone, Apple TV are trademarks of Apple Inc. Content Relevant URLs by vBSEO 3.6.0 RC 2 Urban living in Toronto!