Dell 45W Laptop Charger - 19.5V 2.31A Power Adapter (4.5mm Small Pin)

Specification	Details
Output Voltage	19.5V DC
Output Current	2.31A
Total Power	45 Watts
Input Voltage	100-240V AC ~ 1.3A (Universal)
Connector Size	4.5mm (Outer) x 3.0mm (Inner) with Center Pin
DC Cable Length	~1.5 - 1.8 Meters
Safety Features	Over-voltage, Over-current, Short-circuit protection

Price

₹ 805.08

(Tax included)

Barcode: 3279182

Product Description

The Dell 19.5V 2.31A 45W Laptop Charger is a high-performance power adapter designed to provide stable and efficient charging for modern Dell Ultrabooks and Inspiron series laptops. Featuring the slim 4.5mm "Small Pin" connector with an integrated central identification pin, this adapter ensures your laptop receives the exact power profile required for both battery charging and system operation. The unit is built with high-grade electronic components that meet global safety standards, effectively filtering out line noise and protecting your sensitive laptop hardware from power surges. Its compact, travel-friendly design makes it an essential replacement or spare charger for home, office, or mobile use.

Key Features

Smart Charging Technology: Communicates with the laptop via the center pin to ensure the correct wattage is delivered.
Universal Input: Compatible with 100V to 240V AC, allowing for use worldwide with the appropriate wall plug.
Durable Strain Relief: Reinforced cable joints prevent fraying and internal wire breakage from repeated bending.
Integrated Protection: Automatic shutdown feature protects against overheating, short circuits, and voltage spikes.
Energy Efficient: Meets high energy-efficiency standards to reduce standby power consumption.
Tangle-Free Cable: Features a flexible DC cord with an attached hook-and-loop strap for easy cable management.

Technical Details

Polarity: Center Positive (+).
LED Indicator: Some variants include a power-on light on the DC connector head.
Form Factor: Slim-line brick for portability.

Prototyping and Engineering Tips from Robogears

The "Center Pin" Secret: CRITICAL: Dell chargers use a 1-Wire protocol signal sent through the tiny pin in the center of the plug. If this pin is bent or the wire inside is broken, the laptop will display a "Plugged in, not charging" message. The laptop will run, but it will throttle the CPU speed to its lowest setting to save power.
Connector Compatibility: Dell has two common "Round" pins. This one is the 4.5mm Small Pin (usually blue-tipped or very thin). It is NOT compatible with the older, larger 7.4mm Dell chargers. Always measure the outer diameter of your laptop's charging port before ordering.
Heat Dissipation: While 45W is a lower power rating, the adapter can still get warm. Avoid burying the "brick" under papers or placing it on a carpet while charging a fully depleted battery. Airflow around the adapter prolongs its internal capacitor life.
Voltage Matching: Never use a charger with a lower voltage than 19.5V. Using a higher wattage charger (e.g., a Dell 65W or 90W with the same 4.5mm pin) is safe and often runs cooler, as the laptop only draws the 2.31A it needs.
Cable Care: Avoid wrapping the thin DC wire tightly around the adapter brick. Over time, this creates "necking" at the joints. Use a "figure-eight" wrap or the provided Velcro strap to maintain cable integrity.

Package Includes

1 x Dell 19.5V 2.31A 45W Laptop Power Adapter
1 x Mains Power Cord (Batch dependent)

Disclaimer: Product images are shown for illustrative purposes only. The exact label layout or the presence of a Dell logo may vary depending on the specific manufacturing batch, but all technical specifications and 45W performance standards remain as described.

Safety Warning: Use only with compatible Dell laptops. Do not attempt to open the charger housing as there are no user-serviceable parts inside and high-voltage capacitors can hold a dangerous charge. Keep away from liquids and high-humidity environments. If the outer insulation of the cable is damaged, stop using the charger immediately to avoid electrical fire or shock.