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Old 07-22-2014, 12:16 AM   #1
Kuriibaa
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Question Preventing laptop battery from charging in Mint 17


Hello everyone,

I had to unplug my Lenovo G770 laptop for a bit, and when I plugged it back in, it kept charging far beyond the 45% it usually stays at. I'd like to prevent it from charging over that percentage in order to prolong the battery life. It automatically does this in Windows 7, which I dual boot with.

While in Windows it does start charging more than I'd like after unplugging the AC adapter and then plugging it back in, this is always fixable by simply rebooting. I just tried this in Mint, though, with no luck--even when I let it discharge well below 45%, plug it in and reboot, Mint boots up and charges more than I want it to, even though it didn't have this issue for the two weeks I've had it installed with the laptop plugged in for that entire period. Any idea how I can fix this? Am I better off using a certain program that will manage my battery charging settings more reliably? Any possible solution/suggestion is appreciated greatly.
 
Old 07-22-2014, 12:37 AM   #2
Ztcoracat
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Hi and Welcome to Linux Questions.

Somewhere in your Linux Mint Applications Menu under Settings you should have "Power Management"
There you should be able to control the battery and other general settings too.

Here is a screenshot of mine and what mine is set to:
http://s1052.photobucket.com/user/Ul...ement.png.html

Sorry I don't know how to make battery adjustments in Windows.
 
Old 07-22-2014, 01:20 AM   #3
Kuriibaa
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Hi Ztcoracat, and thanks for the quick reply!

I didn't mean to imply I'm looking to fix anything in Windows--I was just using it as an example, since it always "resets" the AC settings back to "stop charging when battery is half full" any time I reboot it, which is what I want Mint to do(which it did until about three hours ago.)

I do have Xfce Power Manager and it basically looks exactly like yours, but there seems to be no option to tell it how far to charge the battery when the AC adapter is plugged in. Under the Actions tab in the AC menu, it only allows me to put the computer to sleep when inactive for X number of minutes, choose what to do when the lid is closed, and spin down hard disks. I've looked it over a few times and that's definitely all that's available. I have to wonder if there might be another power management program out there that addresses the "keep charging" vs. "preserve battery health" choice I'm given in Windows with their provided Lenovo power management program.

Thanks for your suggestion. Mint's working out quite well for me apart from this and partitioning, but I'm sure I'll find a way to isolate the issue here.

Any further steps I can take? Maybe something else within Mint, or a terminal command that might point me in the right direction?
 
Old 07-22-2014, 03:15 AM   #4
Ztcoracat
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Your Welcome-

TLP is a power management tool for Linux. That might help.

These article's might bring some resolution too:-

http://www.noobslab.com/2013/07/how-...anagement.html
http://www.sysads.co.uk/2014/05/twea...e-overheating/
http://www.webupd8.org/2013/04/impro...y-life-in.html

Aside from that wait for other members to chime in and offer their advise.
Other Linux Mint users might know more about laptop battery management.

Try looking in the Linux Mint forum there might be suggestions there too.
http://forum.linuxmint.com/viewtopic.php?f=49&t=169767
 
  


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