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Slim black rectangular power brick with 7.4 mm barrel connector and detachable AC cord

DELL

DELL TXR1N Slim AC Adapter 180 W 7.4 mm Barrel Tip 100 to 240 VAC

SKU CH-MM9D-R0Q1S

Slim 180 W laptop power adapter with a 7.4 mm barrel tip and 100 to 240 VAC input

  • Battery typeLithium-Ion
  • 180 W output powers demanding laptops
  • Slim profile fits tight bags and docks
  • 100–240 VAC input works worldwide
  • 4 mm barrel tip matches Dell port
  • 5 V at 9.23 A delivers stable charge

Dell TXR1N Slim AC Adapter 180 W

The Dell TXR1N Slim AC Adapter delivers 180 Watts of power through a 7.4 mm barrel tip. It accepts 100 to 240 VAC at 50/60 Hz input and provides a 19.5 V, 9.23 A output. This new replacement unit matches the Chicony HA180PM210 and part number 0TXR1N.

Who this suits and who it does not

This adapter suits owners of compatible Dell laptops that require a 180 W supply with a 7.4 mm barrel connector. It is not for users whose devices need a different wattage, a different tip size, or a USB-C power connection. Buyers should verify their original charger specifications before purchasing.

Deciding specification

The 7.4 mm barrel tip and 180 W rating are the critical specifications that determine fit and function. If the laptop requires a different connector diameter or a lower or higher power rating, this adapter will not work. Check the original power brick for the exact tip size and wattage.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $80.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

Power
Battery typeLithium-Ion

Questions about this item

How do I connect the 7.4 mm barrel tip, and which step do people get wrong?

Plug the 7.4 mm barrel tip firmly into the laptop's power port until it clicks; the step often missed is verifying the laptop shows 19.5 V charging before assuming it is seated.

What maintenance or replacement will the 180 W adapter need later?

The cable and 7.4 mm barrel tip wear first; replace the unit if the tip becomes loose, the cable frays near the strain relief, or output drops below 19.5 V at 9.23 A.

What limit appears first when the adapter runs at full 180 W load for long periods?

Sustained 180 W output at 19.5 V and 9.23 A causes the brick to reach its thermal ceiling first; the case temperature rises until internal protection throttles or shuts off power.

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