3 Wire Dell Laptop Charger Wire Diagram =link= [VERIFIED]

Standard 3-wire Dell laptop chargers typically use a color-coded system where the wire is positive (+), the black wire is negative/ground (-), and the blue wire is the ID/Control pin . This third blue wire is critical; it communicates the charger's wattage to the laptop. If it is damaged, your laptop may power on but refuse to charge the battery, often displaying an "Unknown AC Adapter" error in the BIOS. Dell 3-Wire Color Code & Functions

The remaining wire is the data line. To confirm: 3 Wire Dell Laptop Charger Wire Diagram

That is a drain wire or shielding. It is connected to ground (GND) and helps reduce electromagnetic interference. Solder it to the same spot as your black ground wire. Standard 3-wire Dell laptop chargers typically use a