Alimentatore Dell XRK4D 45W 19.5V per laptop Dell — alimentatore sostitutivo

Dell XRK4D AC adapter is a 45W, 19.5V replacement power supply designed to provide stable DC power for compatible Dell laptops. It offers regulated output to charge the battery and run the laptop under typical load conditions. The adapter is intended as a direct replacement for a lost or faulty original unit and is suitable for everyday use at home, in the office, or while traveling.

Advantages

The adapter delivers a consistent 19.5V output with 45W power rating to support charging and device operation. Its compact form factor and integrated cable make it convenient to carry and position with portable computers. Built-in protection circuits help guard against overcurrent, short circuit and overvoltage, contributing to safer operation when connected to compatible laptops. The design follows standard connector and voltage characteristics commonly used in Dell systems, enabling straightforward replacement and reliable power delivery.

Suitable for

• Replacing a lost or defective Dell laptop charger
• Daily use at home or in the office to charge and power a compatible Dell notebook
• Portable power solution for travel and remote work
• Temporary replacement during repair or battery service

Key specifications

• Output voltage: 19.5 V DC
• Power output: 45 W
• Output current: 2.31 A (typical for 45 W at 19.5 V)
• Input: AC mains compatible with standard household voltages
• Connector: Dell-compatible barrel-style DC plug
• Protection features: overcurrent, overvoltage and short-circuit protection
• Form factor: compact external AC adapter with attached DC cable

How to use

Connect the AC adapter to an appropriate mains outlet using the supplied AC cable or a matching mains lead, then insert the DC plug into the laptop power jack until it seats securely. Verify the laptop indicates charging or external power is connected. Use the adapter on a stable, flat surface and avoid covering it to allow heat dissipation during operation. When not in use, disconnect the adapter first from the mains supply and then from the laptop.

Recommendations

Use the adapter only with compatible Dell laptops that accept 19.5 V DC and the specified power level. Avoid using the adapter with devices that require different voltages or connector types. For prolonged charging sessions, ensure adequate ventilation around the adapter and periodically inspect the cable and connector for signs of wear or damage. Replace the adapter if it shows overheating, exposed wiring, or inconsistent charging behaviour.