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jeroenstapper
Paper Tape
Posts: 1
Registered: ‎07-17-2018
Location: NL
Views: 1,243
Message 1 of 7

Yoga L380 nearly overheating with 65W charger connected + wifi issue

Hello, I've had my new yoga L380 for two days and am noticing that when it charges with supplied 65w USB C charger, both the power adapter brick and the laptop get very hot. The adapter itself gets almost too hot to hold in the hand. The laptop (i5) highest temp I have seen while charging was 85C, even though CPU load was only ~30%. Once it stops charging it cools down.
I also had an issue during charging that the wifi connection dropped and I could not re-connnect to any other network, so it appeared that the heat was affecting the wifi module somehow. Troubleshooting gave no possible software issues and other devices were connected to the same wifi network.

Is this normal? What kind of temps should I be expecting?
I would be ok with slower charging if this prevents the issue but if something is wrong with my battery or charger I need to know.
Thanks in advance.

Lenovo Employee joefoxK
Lenovo Employee
Posts: 20
Registered: ‎12-15-2017
Location: CN
Views: 1,115
Message 2 of 7

Re: Yoga L380 nearly overheating with 65W charger connected + wifi issue

hi, can we know what application or tool /or behavior  was used to keep CPU loading to 30%? And what tool was used to detect the tempeture when he/she get 85C? if there is any special tool using, can you also provide the link, so we can try this.

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ah6
What's DOS?
Posts: 1
Registered: ‎11-23-2018
Location: US
Views: 758
Message 3 of 7

Re: Yoga L380 nearly overheating with 65W charger connected + wifi issue

I am also facing a similar issue on my Lenovo Yoga L380, temp raises unbearably hot when using this laptop in AC adapter plugged in the state. I bought this laptop a week ago from Lenovo website. 

Please provide information on how to fix this issue. Is this a driver or BIOS related issue?

adav5
Paper Tape
Posts: 1
Registered: ‎04-06-2019
Location: US
Views: 349
Message 4 of 7

Re: Yoga L380 nearly overheating with 65W charger connected + wifi issue

I have this issue, too. Bought Lenovo L380 with Intel Core i5 7th gen processor, directly from Lenovo.com about 3 weeks ago. I love the machine, but the overheating issue is alarming. On occassion it's gotten so hot the OS would present certain bugs, like not recognizing when to switch from desktop to tablet mode (and reverse), lag issues with touch screen, etc. Once machine was allowed to "rest" (unplugged in sleep mode) functionality returned to normal after machine cooled down.

 

I've currently been using my device for about 4 hours of interrupted use, on wifi, working in multiple presentations and spreadsheets, while also streaming music. Device is on a hard surface in a well-ventilated space, but once battery ran low and I plugged the machine to charge (about an hour ago, I'm presently back at 92% charge), the laptop and power adapter brick are VERY hot, laptop's cooling fan is audibly running.

 

Has Lenovo looked into this issue and offered any resolution?

gdcan
Fanfold Paper
Posts: 4
Registered: ‎10-29-2018
Location: AT
Views: 215
Message 5 of 7

Re: Yoga L380 nearly overheating with 65W charger connected + wifi issue

I can't believe they are not looking into this question, just terrible.
Shree6
What's DOS?
Posts: 1
Registered: ‎05-04-2019
Location: US
Views: 193
Message 6 of 7

Re: Yoga L380 nearly overheating with 65W charger connected + wifi issue

Were you able to solve this problem?

lavellan
Paper Tape
Posts: 2
Registered: ‎05-13-2019
Location: GB
Views: 105
Message 7 of 7

Re: Yoga L380 nearly overheating with 65W charger connected + wifi issue

Lenovo L380 purchased a few days ago. Same problem here. Laptop overheats while charger is plugged it, and the power adaptor (65W) overheats as well. This is not ok and the latest BIOS update (1.20) didn't solve the issue at all, it only hides the windows 10 "slow charging" error. Thought Lenovo can do better than this, I will just return the laptop and move on to something better.

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