Connects to the inner sleeve of the barrel connector, carrying the standard 19.5V power.
┌─────────────┐ │ (Center) │ ← Pin 1: 1-Wire Data (DS2501 chip) │ ● │ │ ┌───┐ │ │ │ ● │ │ ← Pin 2: +19.5V DC (Inner barrel) │ └───┘ │ │ │ └─────────────┘ │ (Outer shield) ← Pin 3: Ground (0V) 3 Wire Dell Laptop Charger Wire Diagram
If your charger works but the DC tip is broken, follow these guidelines. Connects to the inner sleeve of the barrel
Ensure the fine strands of the ID wire do not touch the positive or ground wires, as this can permanently damage the laptop's charging circuit. DELL Laptop Charger Pin-Out Explained (For DIY Mods) DELL Laptop Charger Pin-Out Explained (For DIY Mods)
| Charger Wattage | Red Wire (V+) | Black Wire (GND) | Data Wire (Center) | |----------------|---------------|------------------|--------------------| | 65W | Outer barrel | Inner barrel | 330Ω resistor from data to GND (inside plug) | | 90W | Outer barrel | Inner barrel | 620Ω resistor from data to GND | | 130W | Outer barrel | Inner barrel | 1kΩ resistor from data to GND | | 180W | Outer barrel | Inner barrel | 1.8kΩ resistor |