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Black rectangular AC adapter with 3.0mm/4.5mm barrel connector and integrated power cord

GCROWN

GCROWN 45W AC Adapter 19.5V 2.31A 3.0mm/4.5mm Dell Inspiron XPS Vostro

SKU CH-B7VQ-7RXDR

45 W replacement charger delivering 19.5 V at 2.31 A with a 3.0 mm by 4.5 mm tip for Dell Inspiron, XPS and Vostro laptops

  • Battery TypeLithium-Ion
  • 45 W output powers compatible Dell laptops efficiently
  • 5 V 2.31 A DC output matches original charger specifications
  • 0 mm inner and 4.5 mm outer tip fits listed Inspiron, XPS and Vostro models
  • 100-240 V 50/60 Hz input works worldwide without a voltage converter
  • CE, FCC and RoHS certified for electrical safety compliance

45 W AC Adapter for Dell Laptops

This 45 W replacement charger delivers 19.5 V at 2.31 A to compatible Dell Inspiron and XPS models. It accepts a universal 100-240 V input at 50/60 Hz for worldwide use. The barrel connector measures 3.0 mm inner by 4.5 mm outer diameter.

Replacing a Lost or Failing 45 W Unit

Swap this adapter in when the original Dell AA45NM131, DA45NM140 or LA45NM121 charger is lost, damaged or no longer holds a charge. The upgrade is worthwhile only if your laptop requires exactly 45 W and the 3.0/4.5 mm tip matches the port. Machines that need higher wattage or a different connector cannot use this supply.

Limits of the 45 W Barrel Interface

The fixed 45 W output caps the power available for charging and simultaneous operation on larger Dell models. The proprietary 3.0/4.5 mm barrel plug prevents use with USB-C or other barrel sizes without an adapter. Polarity and voltage are fixed at 19.5 V, so the unit cannot negotiate alternative profiles.

Highlights

  • 45 W output powers compatible Dell laptops efficiently
  • 5 V 2.31 A DC output matches original charger specifications
  • 0 mm inner and 4.5 mm outer tip fits listed Inspiron, XPS and Vostro models
  • 100-240 V 50/60 Hz input works worldwide without a voltage converter
  • CE, FCC and RoHS certified for electrical safety compliance

Specifications

Battery TypeLithium-Ion

Questions about this item

Does the 3.0 mm by 4.5 mm barrel connector fit my Dell Inspiron 15 3558?

Yes — the adapter uses a 3.0 mm inner and 4.5 mm outer diameter tip that matches the Dell Inspiron 15 3558 charging port.

What is the correct way to connect the adapter so the laptop actually charges?

Plug the AC cord into the brick, insert the barrel tip fully until it seats, then connect the mains plug; the common mistake is leaving the barrel tip slightly loose.

When will I need to replace the AC cable or the adapter itself?

Replace the detachable AC cable if the insulation frays or the plug bends; replace the whole adapter if output voltage drops below 19.5 V or the brick overheats.

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