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The Dell XPS 15 9500 is a laptop released by Dell in May 2020. It can be identified by model number XPS9500.

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Bios doesn't recognize new battery

My Dell XPS bios does not recognize the new battery. It will start plugged in and if I remove the power it will die. however, if I start it with the power disconnected it will run on battery power. but if I plug it in it will turn off.

I have drained the flea power

I have checked the battery cable.

I have reset the bios to factory defaults

I bought my battery from Ifixit

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Hi @jp221

Try uninstalling the battery drivers in Device Manager. When complete, close all open windows and then restart the laptop in the normal manner to allow Windows to reinstall them.

Go to Device Manager → Battery → right click on the Microsoft ACPI-Compliant Control Method battery entry → Uninstall Device and follow the prompts.

To get to Device Manager in Win10/11, press the Win key and the x key (both together) and click on the Device Manager link in the menu box that opens.

If it still doesn't work, do you still have the original battery?

If so, reinstall it and check if it works OK as far as being detected etc.

If so you may have received a faulty battery. Contact ifixit at support@ifixit.com

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So I did the steps suggested below and it didn't work. I bought two of the same batteries one for my laptop and my brother and he has not gotten around to installing it. so I installed the other battery in my laptop and the bios and windows recognize it. so it has to be a bad battery.

@jp221

Looks like it is a faulty battery. It happens sometimes.

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