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April 4th, 2022 19:00

m15 R1, cannot detect power adapter wattage

Hey guys, I’m getting the message below whenever my computer boots up and my battery is sitting at 0% charge. It was doing this before I updated to Windows 11. It started working again for a couple days, then it started not charging and detecting it again. Warranty expired in July 2020.

“Charger - The AC power adapter wattage and type cannot be determined. The battery may not charge.”

 

Moderator

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April 4th, 2022 19:00

Hello, I see you are looking for technical assistance. If you need our help, you can start a private message with us and we will be happy to assist you

9 Technologist

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April 5th, 2022 07:00

Hi @Cgjohnst welcome to this free user to user Alienware laptop discussion forum. This is not Dell Support. 

Please create Battery Report. How to Check Laptop Battery Health in Windows 11 [Guide] | Beebom 

[This user does not work for Dell and volunteers their free time. Please remember to say thank you by clicking on Kudos as this user's only reward.] 

12 Elder

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April 5th, 2022 09:00

The two most common causes of the failure to recognize the AC adapter are the adapter itself, or the DC input jack.  First try a new OEM Dell adapter -- if it's recognized then you know the cause. If not, and your specific model has a jack mounted on a cable that plugs into the system board, replace the DC jack (not all Alienware systems do -- on some, the jack is soldered to the system board).  

2 Posts

April 5th, 2022 09:00

I’ve tested the battery multiple times and it’s showing normal function (although it won’t charge). I tried an OEM dell AC adapter, but it is still doing the same thing. I don’t know how to solder. Would I probably be best off taking my laptop to a local pc repair shop and asking them to replace the dc jack? And if I do that, should I buy the part first and take it in?

12 Elder

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April 6th, 2022 09:00

Two adapters not being recognized means the problem is with the jack or power circuit.

For the original M15, this is the part to try next:

https://www.parts-people.com/index.php?action=item&id=34036

(note:  there are other Alienware models such as the Alienware 15 and M15X -- which use different parts than the M15, so verify the model you have before buying).

 

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