3 Wire Dell Laptop Charger Wire Diagram May 2026

Visually (linear): V+ (red) -----→ center pin (inner conductor) → laptop V+ GND (black/braid) -----→ barrel sleeve (outer conductor) → laptop GND ID (thin, e.g., white) -----→ small ID contact/pin → laptop ID sense

If your Dell charger cord has been chewed by a pet, pinched in a chair, or cut in half, follow this process to map the wires: 3 Wire Dell Laptop Charger Wire Diagram

Plug the charger into AC power. Do not short the wires. Ground (V− / GND) — outer barrel/return

Disclaimer: This guide is for informational purposes. Opening power bricks or modifying cables carries a risk of electric shock or damage to your device. Always proceed with caution. ID / Sense (Communications) — small signal wire

Here is the detailed explanation and wiring diagram for a 3-wire Dell laptop charger (typically the barrel-type connector with a center pin).