AC Adapter Dell RF3VG for Inspiron 15 5558 / 17 5758 19V 90W with power cable

Replacement AC Adapter Dell RF3VG for Inspiron 15 5558 / 17 5758 delivers 19V output and up to 90W of stabilized power for compatible Dell Inspiron laptops. Designed to match the original adapter's voltage and power rating, this unit includes a detachable power cable and a DC connector sized for the specified laptop models. The adapter supports laptop charging and operation while connected to mains power and is intended for use in home, office, and travel environments.

Advantages

The adapter provides a stable 19V output with a 90W power capacity to support battery charging and sustained laptop operation under typical workloads. Its detachable AC power cable simplifies replacement and storage, and the design follows the physical and electrical characteristics expected for the specified Inspiron models to ensure consistent performance. Built-in protections against common electrical faults help maintain safe charging and reduce risk to the laptop.

Suitable for

• Charging Dell Inspiron 15 5558
• Charging Dell Inspiron 17 5758
• Replacing a lost or damaged original adapter
• Using with Inspiron laptops during travel, office, or home use

Key specifications

• Output voltage: 19 V
• Maximum power: 90 W
• Connector type: DC barrel connector compatible with specified Inspiron models
• Input: standard AC mains input via detachable power cable
• Protection features: overcurrent, overvoltage, and short-circuit protection
• Form factor: external desktop-style AC adapter

How to use

Connect the detachable AC power cable to the adapter and plug the cable into a suitable mains outlet. Insert the DC connector into the laptop's power jack until it is seated securely. The adapter will supply power and charge the battery while the laptop is powered on. To disconnect, first remove the DC connector from the laptop, then unplug the AC power cable from the mains. Use the adapter only with compatible laptop models and ensure correct seating of connectors before operation.

Recommendations

Use the adapter in a well-ventilated area and avoid covering it during operation to prevent overheating. Verify the laptop model and connector fit before purchase. If the adapter or cable shows damage, discontinue use and replace the damaged component. For stable operation, connect to a properly grounded mains outlet and avoid using excessive extension cords or adapters.