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4 Posts

04-10-2018

Netherlands

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Lenovo P50 won't charge while turned on

2018-04-10, 9:15 AM

I have an lenovo p50 thinkpad thats roughly one and a half year old.

Since last week it won't charge while the thinkpad is turned on, but will charge while its turned off.

I have tried a different charger from a roommate who has the same notebook but even that won't work.

It's as if the thinkpad won't detect the charger.

I have tried turning off airplane mode since i have seen that that could be an issue, but it still won't charge.

 

any idea's?

 

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584 Posts

11-04-2010

Canada

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Re: Lenovo P50 won't charge while turned on

2018-04-12, 4:53 AM

Does it charge while you're in the BIOS?

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12338 Posts

01-02-2010

United States of America

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Re: Lenovo P50 won't charge while turned on

2018-04-12, 6:30 AM

what is the wattage of the charger?


Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.
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4 Posts

04-10-2018

Netherlands

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Re: Lenovo P50 won't charge while turned on

2018-04-12, 9:20 AM

It does not charge while in BIOS

It's the standard power adapter which should be 170 Watt if I'm correct.

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12338 Posts

01-02-2010

United States of America

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Re: Lenovo P50 won't charge while turned on

2018-04-12, 15:26 PM

I asked about the charger because with a smaller (90-watt) charger, it will only charge while off.  It sounds like the circuitry (motherboard) is not correctly recognizing the charger capacity.  It checks resistance from control pin to ground.  Do you still have warranty remaining?


Rich


I do not respond to requests for private, one-on-one help. Your questions should be posted in the appropriate forum where they may help others as well.

If a response answers your question, please mark it as the accepted solution.

I am not an employee or agent of Lenovo.
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26 Posts

03-26-2018

United Kingdom of Great Britain and Northern Ireland

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Re: Lenovo P50 won't charge while turned on

2018-04-13, 0:05 AM

Have you got Lenovo Vantage installed ? If not install that and open Hardware Settings >> Power >> .

 

This should show you how the system is seeing your charger .. it should be 170 watts (scroll down).

 

Scrolling down further you can see another setting called Battery Threshold .

 

I have mine set to 75% start charging when below and 85% stop charging at. Switch ON Custom Battery Charge Threshold setting switch above.

 

See if that sorts out your issue.

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4 Posts

04-10-2018

Netherlands

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Re: Lenovo P50 won't charge while turned on

2018-04-13, 8:13 AM

I have tried the battery treshold thing which did not seem to work either.

It just doesn't detect the charger.

 

I was hoping it was just some minor issue but as you said, it seems to be a circuit malfunction.

 

I'll have to send it to the service center then.

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2 Posts

08-08-2019

Switzerland

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Re: Lenovo P50 won't charge while turned on

2019-08-08, 11:37 AM

I had exactly the same problem. I have a Ubuntu 16.04 and Windows 10 Dual Boot and my Thinkpad P52 would only charge when the lid was closed - independent of the operating system in use.

 

Many thanks to mutty for the advice to check out Lenovo Vintage. At first it did not display my power supply, but when I turned off the Airplane Power Setting it started work. It also charges now when using Ubuntu 16.04 and the Laptop is turned on. 

 

This issue is really crazy^^

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3 Posts

10-20-2020

Spain

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  • Message 9 of 9

Re:Lenovo P50 won't charge while turned on

2021-07-07, 9:57 AM

Just faced similar issue... thing is that in Lenovo Vantage there's some stuff for 'airplane mode' that detects the power adapter as being in an airplane, and thus providing less wattage to the power brick.

 

Disabling autodetection and disabling the airplane mode there, just showed again laptop charging and working as expected... last time spent several hours trying different adapters, etc until I got it back to work (dunno how).

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