Laptop Charger Wire Diagram: 3 Wire Dell

Here's a simplified explanation of how the 3-wire configuration works:

If you are testing or soldering the connector, the physical layout is as follows: Ground (Black wire). Inner Metal Ring: Positive 19.5V (White wire). Center Needle Pin: Data/ID (Blue wire). Technical Specifications Standard Dell Specs Output Voltage Typically 19.5V DC Wattage Range Common sizes are 65W, 90W, or 130W Communication Uses a 1-Wire ID chip to identify charger capacity Common Repair Issues 3 Wire Dell Laptop Charger Wire Diagram