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6 Posts

05-17-2018

United States of America

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  • Message 11 of 24

Re:Brand new P73 - message on screen says: "The connected AC adapter has a lower wattage..."

2020-07-28, 18:47 PM

Same issue here with a brand new P53, after one reboot it went into airplane mode and would not acknowledge the AC adapter

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11 Posts

05-19-2015

United States

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  • Message 12 of 24

Re:Brand new P73 - message on screen says: "The connected AC adapter has a lower wattage..."

2020-08-22, 23:48 PM

I have P53 and this is exactly the same. Very unreasonable...

  • Airplane mode on = no charging
  • Airplane mode off = charging
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438 Posts

07-08-2019

Canada

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  • Message 13 of 24

Re:Brand new P73 - message on screen says: "The connected AC adapter has a lower wattage..."

2020-08-24, 3:22 AM

Hi!

 

The solution is simple : Disable airplane power detection in Vantage. I'm not sure exactly how it's called as I am on my phone right now.

 

There is a reason it's on : to prevent tripping airplane breakers.

 

Martin

Using Browser Search to find your answers in Lenovo and Moto Community

I'm a volunteer, NOT a Lenovo employee.
If I solved your issue, please click Accept as a Solution.
If my post helped, consider giving me a Thumbs Up.

Main: P52 (I7-8750H P1000 FHD 16GB 2TB-SSD 1TB-HDD)
Also, 2x M820z, 1x P520c, 1x ideaCentre 300S-11IBR

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4 Posts

03-13-2020

Australia

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  • Message 14 of 24

Re:Brand new P73 - message on screen says: "The connected AC adapter has a lower wattage..."

2020-08-30, 6:29 AM

@ ve2mrx wrote:
 

The solution is simple : Disable airplane power detection in Vantage. 

 

Turned of airplane mode and auto detection in Vantage. Worked a charm. Thanks, Martin.

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1 Posts

10-09-2020

United States of America

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  • Message 15 of 24

Re:Brand new P73 - message on screen says: "The connected AC adapter has a lower wattage..."

2020-10-09, 14:17 PM

I had exactly the same issue on my Thinkpad X1 Yoga 3rd Gen. laptop. I had already verified that my laptop was not in airplane mode, nor was there any issue with the middle pin of the USB-C connector as some people suggested to check on this thread. I also had more than one adapters for the laptop which I had tried from different outlets, just to rule out that it was an adapter issue. When I still couldn't figure it out I tried the following:

 

There is an option in the bios under the power management options to disable the built in battery. This is typically used before you open the laptop to replace the battery. I just decided to give it s try. So I rebooted my laptop and pressed F1 a few times immediately upon reboot to take me to the BIOS settings.

 

Then under power management, I went ahead and disabled the inbuilt battery. This will immediately shut down your laptop.

 

Upon doing this, I then rebooted my laptop again. Voila! This time I did not see the error message upon reboot. And what's more, my battery started charging again.

 

So if you have already tried all the other things mentioned above, give this a try as well. It worked for me.

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1 Posts

11-27-2020

Canada

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  • Message 16 of 24

Re:Brand new P73 - message on screen says: "The connected AC adapter has a lower wattage..."

2020-11-27, 15:23 PM

Disabling the inbuilt battery in BIOS settings is what worked for me on my P53:

  • Unplug the power adaptor
  • Disable the inbuilt battery in BIOS settings.
  • Plug back the power adaptor
  • Power on
  • -> No more error message and the battery is charging again!

Thanks!

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1 Posts

01-06-2021

Poland

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  • Message 17 of 24

Re:Brand new P73 - message on screen says: "The connected AC adapter has a lower wattage..."

2021-01-06, 16:52 PM

I had the same problem. 

For me worked simplest solution. I disconected power adapter, then turn on computer and plugd in AC when windows was up.

Now it;s working normally and charging battery.

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1 Posts

01-18-2021

Japan

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  • Message 18 of 24

Re:Brand new P73 - message on screen says: "The connected AC adapter has a lower wattage..."

2021-01-18, 16:16 PM

I had an issue with my X280 and the power adapter, or rather the power management on the X280 board. It would sporadically tell me at startup that my adapter didn't have enough wattage to power the system properly and that I should plug in the adapter that came with the machine, which I did. Still, it kept on complaining and the battery wouldn't charge in Windows.

 

I solved it by following DB321's advice: Entered BIOS, switched off the internal battery and let the BIOS turn the machine off. I then pressed the power button for 30s (not sure if this is necessary), plugged the power back in and booted. Problem solved!

 

Shout-out to everyone in this thread, this was very helpful!  

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1 Posts

03-13-2021

France

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  • Message 19 of 24

Re:Brand new P73 - message on screen says: "The connected AC adapter has a lower wattage..."

2021-03-13, 7:26 AM

Thanks so much for that information. It solves my issue. As the message appears in early boot phase, I did not think it was an issue with a parameter from OS itself.
You make my day ! 

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2 Posts

04-06-2021

United States of America

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  • Message 20 of 24

Re:Brand new P73 - message on screen says: "The connected AC adapter has a lower wattage..."

2021-04-21, 6:24 AM

Why on earth does airplane mode disable the charging port! Could you at least issue a warning? It seems like Lenovo just loves wasting people’s time. Ugh!

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