Solved: AC Adapter - Alert - "AC power adapter wattage and type cannot be determined" - Dell Community
XPS 9560 battery not recognized at boot - Dell Community
Dell AC adapter unknown - lets find out why - YouTube
Fix" to unknown AC adapter : r/Dell
XPS 15 9500 - Random reboots, not detecting charger, will never buy Dell again - Dell Community
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Dell XPS 15 9575 Troubleshooting - iFixit
Solved: XPS15 9560, AC adapter not recognized - Dell Community
How To Fix a Power Adapter Warning - Battery May Not Charge - Dell Laptop Computer - YouTube
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Amazon.com: Dell PA-13 Family 130-Watt AC Adapter For Dell Inspiron 5150/5160 and XPS M Series Notebooks Part Numbers: 9Y819, W1828, D1078, TC887, X7329, D1078, K5294, 310-4180, 310-6580, 310-8275, 310-7848, 310-7849 : Electronics
Dell M1730 AC adapter unknown device installed, need help | TechPowerUp Forums