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4 Posts

04-04-2015

egypt

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Re: t540p power supply problems

2015-12-08, 12:04 PM

I face same issue with T540P also when i'm using battry without ac power connected ,

so i suppose to replace my charger , or  i face another problem ?

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4 Posts

04-04-2015

egypt

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Re: t540p power supply problems

2016-01-15, 21:10 PM

Hello !!
i got same problem even with the new adaptor !!!!!

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3 Posts

08-13-2015

riyadh. saudi arabia

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Re: t540p power supply problems

2016-12-14, 11:40 AM

battery not charging while system working with the charger

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12985 Posts

06-06-2011

Russian Federation

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Re: t540p power supply problems

2016-12-14, 15:01 PM
Did you replace the battery? Is it Lenovo genuine battery?



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3 Posts

08-13-2015

riyadh. saudi arabia

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Re: t540p power supply problems

2016-12-15, 6:40 AM

This is a new machine from the box. when machine is off and power connected battery is charging up to 100% but when  machine in use(power on) battery not charging discharging only.Replaced new battery,  new power adapter even new motherboard also replaced but problem not solved. software also updated. Reloaded power management driver also.

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3 Posts

08-13-2015

riyadh. saudi arabia

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Re: t540p power supply problems

2017-01-08, 8:02 AM

power adapter connected but while updating bios(uefi) system error message (connect ac adapter)

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2 Posts

04-06-2017

Greenland

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Re: t540p power supply problems

2017-04-06, 15:05 PM

I can as well confirm the problem here described as solved by changing to the 45N0362 power adapter - I had a 45N0502 before and and the symptoms knocked out my setup.

 

Using two Displayport screens to the dock, both screens and builtin screen flickering - power adapter error message goin to flight mode - USB port suddently unrecognized on dock.

 

After change of power adapter and full power off of everything all symptoms disappeared.

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2 Posts

04-06-2017

Greenland

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Re: t540p power supply problems

2017-04-06, 15:13 PM

I too can confirm that the 45N0362 power adapter solves the problems mentioned here.

 

I used 45N0502 and both attached screens (both displayport) and the builtin flickered - power adapter error message appeared that power was changed to flight mode - USB could suddenly not be recognized.

 

After change to 45N0362 and a full power off of all equipment everything works again - and no flickering off any kind.

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