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Paper Tape
Posts: 2
Registered: ‎05-16-2016
Location: US
Views: 297
Message 1 of 3

Lenovo P400 Battery problems

Hi everyone, I have had my Lenovo p400 touch for about 3 years now. Just recently, I noticed that when I plug in my computer, the charging light stays white at all times. The battery always says "Charged, 100%" but when I unplug my charger from the laptop, it immediately shuts down. The screen goes black and all my work is left unsaved. It has gtten to the point where I always need to have the charger in it, otherwise I can't use the laptop at all. Every time I unplug the charger the laptop turns off. 


Do I need a new battery? Is the battery bad, or is there something I can do to fix this? I've heard new battery drivers might help, but I am lost. I know replacing the battery in this laptop isnt easy, so I am hoping there is some other solution for me.

Any advice would be appreciated!! 

Retired Support Specialist
Posts: 3,772
Registered: ‎12-24-2015
Location: IN
Views: 264
Message 2 of 3

Re: Lenovo P400 Battery problems

Welcome to the Forums Mark!


You could try updating the BIOS, chipset & Lenovo energy management.



Lenovo Energy Management


Once you unplug the power adapter it shutdown, if this is the scenario the issue is with battery. Hence I would suggest you to visit the nearest authorised Lenovo authorised support for better assistance.


Let us know how you get on.




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Paper Tape
Posts: 1
Registered: ‎11-03-2016
Location: DO
Views: 200
Message 3 of 3

Re: Lenovo P400 Battery problems

I was same problem, same 3 old P400 Touch! I try change everything program, driwers etc.. I try work with Linux (maybe the reason Win10) but I can't solve. I bot from Ebay 30Usd rechergeable battery. I download from Youtube P400 Touch change battery video. TODAY I change the battery :-) I try first time, and it was NOT difficult, but I make slowly, it was 1hour. You can make sure. Ciao

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