LinuxQuestions.org
Welcome to the most active Linux Forum on the web.
Go Back   LinuxQuestions.org > Forums > Linux Forums > Linux - Newbie
User Name
Password
Linux - Newbie This Linux forum is for members that are new to Linux.
Just starting out and have a question? If it is not in the man pages or the how-to's this is the place!

Notices


Reply
  Search this Thread
Old 05-26-2011, 01:14 PM   #1
Yuhan
Member
 
Registered: Oct 2010
Posts: 256

Rep: Reputation: 2
Is it better to leave in battery or remove when in sleep mode?


Here is a question for which there are rabid responses on both sides on the internet! I am using Ubuntu 10.10 on an IBM ThinkPad t43. I have a 9 volt battery that I use only occasionally. Usually I use the AC connection and when I'm finished working I leave the laptop in "sleep" mode. (Not always, but often.) When using the AC is it okay to leave the battery in the computer or is it better to remove it? Some swear it shortens the battery's life to leave it installed when not in use. Others swear--with equal fervor--that the newer ion batteries know when they are fully charged and don't have to be removed. Which is true? It's inconvenient to keep taking the battery in and out, but if it's necessary to prolong it's life I guess it's worth it. Some clarity on this would be helpful because, as I said, you can find equally impassioned arguments for both sides of this issue. Thanks in advance!
 
Old 05-26-2011, 01:24 PM   #2
AlucardZero
Senior Member
 
Registered: May 2006
Location: USA
Distribution: Debian
Posts: 4,808

Rep: Reputation: 604Reputation: 604Reputation: 604Reputation: 604Reputation: 604Reputation: 604
What kind of battery is it, exactly, and how old is it?
 
Old 05-26-2011, 01:44 PM   #3
Yuhan
Member
 
Registered: Oct 2010
Posts: 256

Original Poster
Rep: Reputation: 2
Let's see, it's a Li-ion battery, 6600 mAh extended life battery (generic brand). I've had it about 4 months.
 
Old 05-26-2011, 01:54 PM   #4
AlucardZero
Senior Member
 
Registered: May 2006
Location: USA
Distribution: Debian
Posts: 4,808

Rep: Reputation: 604Reputation: 604Reputation: 604Reputation: 604Reputation: 604Reputation: 604
http://batteryuniversity.com/learn/a..._ion_batteries

States that Li-Ion batteries will live longer if you do not charge it all the way (though of course not charging it all the way means less runtime on the battery), so it would seem that taking it out when on A/C is beneficial.
 
Old 05-26-2011, 04:06 PM   #5
jefro
Moderator
 
Registered: Mar 2008
Posts: 15,374

Rep: Reputation: 2198Reputation: 2198Reputation: 2198Reputation: 2198Reputation: 2198Reputation: 2198Reputation: 2198Reputation: 2198Reputation: 2198Reputation: 2198Reputation: 2198
In sleep mode you have to keep it in. If the ac drops then you loose your sleep info.


I always remove battery when I use ac alone and power off. IBM sent out a letter stating that it would make the battery last a bit longer but I do it for energy issues. Why charge a battery all the time when I am not using it?
 
Old 05-26-2011, 04:19 PM   #6
David2010
Member
 
Registered: May 2009
Posts: 255

Rep: Reputation: 23
I could see how this would be an iffy topic.

I rarely ever have to put my laptop to sleep however...

If I am doing something very time consuming like compiling a large package what I will usually do is remove the battery (before hand) and run it on AC during the time of the compiling.

Then I would turn the laptop upside down with the lid closed and leave it like that and do something else important.

Of course where I live the AC is very very reliable. Depending on where you live obviously it might be a bad idea to take the battery out.

I would assume that ACPI would just cut the power to the battery and switch to AC alone when the battery is charged. If not then why hasn't somebody implemented this yet? :-)
 
Old 05-26-2011, 08:28 PM   #7
Yuhan
Member
 
Registered: Oct 2010
Posts: 256

Original Poster
Rep: Reputation: 2
Ah, this is the point. I read somewhere that most computers today have something called "smart" charging circuits that protect the battery from overcharging. It's just a convenience not having to bother with removing and then reinserting the battery. But that's I think what makes the topic "iffy" as David said. Is it true that most laptops have these "smart" charging circuits?
 
  


Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search

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 Off
HTML code is Off



Similar Threads
Thread Thread Starter Forum Replies Last Post
disable sleep mode, away mode standby, etc. ZiGz Linux - General 4 06-19-2016 02:15 PM
Remove sleep mode in linux ! shipon_97 Linux - Newbie 1 12-22-2008 12:48 PM
how to disable sleep/hibernate mode in runlevel 3 mode libin88 Linux - General 1 11-23-2008 05:54 AM
Leave vi mode without pressing enter ? Vilius Linux - General 4 11-13-2007 05:12 AM
How to remove linux....yet leave Windows XP? glenn69 Linux - Newbie 3 09-15-2004 08:54 AM


All times are GMT -5. The time now is 04:58 PM.

Main Menu
Advertisement
My LQ
Write for LQ
LinuxQuestions.org is looking for people interested in writing Editorials, Articles, Reviews, and more. If you'd like to contribute content, let us know.
Main Menu
Syndicate
RSS1  Latest Threads
RSS1  LQ News
Twitter: @linuxquestions
Facebook: linuxquestions Google+: linuxquestions
Open Source Consulting | Domain Registration