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12-07-2015

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U31-70 not charging beyond 57%

2015-12-07, 13:58 PM

Hello, as the title suggests I'm having trouble with my laptop - Lenovo U31-70. In that it doesn't charge beyond 57%.

I have tried running out the battery completely but that did nothing. I can not disconnect the battery without opening the entire chassi so I'm a bit stuck/confused.

I am currently running Linux Mint 17.2!

 

What do you think I should do?

 

Best regards, Jesper Svensson.

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6093 Posts

02-11-2012

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Re: U31-70 not charging beyond 57%

2015-12-07, 15:58 PM

hi Jesper,

 

Welcome to the Forums.

 

It's possible that Conservation Mode is turned ON which limits the battery charge levels.

 

Can you try to open the Lenovo Settings app (Metro) then navigate to Home > Power > Conservation Mode.

 

Article:

Battery Conservation Mode (this is for the Yoga 900 but similar aspects apply)

 

 

Let me know how it goes.

 

Regards



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3 Posts

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Re: U31-70 not charging beyond 57%

2015-12-07, 17:04 PM

Hello, I forgot to mention my OS, I am running Linux mint on the computer - I will update the main post.

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Re: U31-70 not charging beyond 57%

2015-12-07, 19:31 PM

hi,

 

Can you try turning off the machine and let the battery charge while it's powered off and observe the battery light indicators to check if the battery go pass 57%.

  - Link to image

 

in addition, there's an old discussion in this thread about the lenovo energy management causing the battery not to charge fully so you may want to check that too together with a battery monitoring utility and kernel updates for the OS.

 

edit:

added links

 

Regards



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3 Posts

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Re: U31-70 not charging beyond 57%

2015-12-07, 21:13 PM

Thank you again for the help, my kernel should not have the problems described in that thread due to it being the absolutely latest kernel (I had to update it and do a few other things to get my wifi working) but it is always a possibility I suppose. The battery indicator is showing 20%+ battery (steady white light).

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Re: U31-70 not charging beyond 57%

2015-12-08, 14:46 PM

hi,

 

If the battery doesn't get fully charged while the machine is turned off then there's likely a problem with the battery especially if you get less than the advertised battery capacity (35Wh) after getting the battery information.

 

Lenovo U31-70 Platform Specifi cations

How to view battery information in Linux

 

You can also try installing Windows (via dual boot or on a separate HDD) and turn off conservation mode but if that's not feasible, you can post at the Linux Discussion board so other linux enthusiasts can also assist.

 

Similar thread:

How to disable battery protection mode on Linux Mint

 

 

Hope you get issue resolved soon.

 

Regards



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