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Black rectangular 170W 20V 8.5A AC adapter with two 6 ft cords

iTekiro

iTekiro 170W 20V 8.5A ac adapter for Lenovo Legion Y540 Y545

SKU CH-51R7-JWF61

Replaces original Lenovo 135W and 170W chargers for Legion Y540 and Y545 models with 20V 8.5A output and six-foot cords

  • AC Adapter Voltage20V
  • AC Adapter Current8.5A
  • AC Adapter Output Power170W
  • 170W output powers demanding Legion laptops
  • 20V 8.5A matches original charger specifications
  • 6ft AC plus 6ft DC cords eliminate extension leads
  • UL listed cord and surge protection guard against electrical hazards
  • Worldwide 100-240V input works in any region

Replacement 170W adapter for Legion Y540 and Y545

This 170W AC adapter powers Lenovo Legion Y540 and Y545 laptops that originally shipped with 90W, 135W or 170W chargers. It delivers 20V at 8.5A and accepts 100–240V input for worldwide use. The unit is not compatible with models that require a 230W, 300W or 330W power supply. Buyers needing higher-wattage charging for larger Legion configurations cannot use this adapter.

Thermals noise and power draw

The ruggedised case is sealed against moisture and high humidity, helping the internal components run at stable temperatures during continuous operation. Comprehensive safety circuitry filters input voltage spikes and limits output voltage or current to protect the laptop from electrical hazards. High power efficiency provides consistent and continuous power whether the notebook is on or off. No fan or audible cooling mechanism is described in the specifications.

Extra-long cords and safety certifications

A UL-listed 3-prong AC cord measuring 6 ft and a 6 ft DC output cord give a combined reach that removes the need for extension leads in most setups. The UL listing on the AC cord confirms it meets recognised safety standards for fire and shock protection. Internal surge filtering and output limiting further reduce the risk of damage from unstable mains power. The bundle contains no software or additional accessories beyond the two cables.

Highlights

  • 170W output powers demanding Legion laptops
  • 20V 8.5A matches original charger specifications
  • 6ft AC plus 6ft DC cords eliminate extension leads
  • UL listed cord and surge protection guard against electrical hazards
  • Worldwide 100-240V input works in any region

Specifications

AC Adapter Voltage20V
AC Adapter Current8.5A
AC Adapter Output Power170W

Questions about this item

How do I install the 170W adapter on my Legion Y540 or Y545, and what step do people get wrong?

Plug the 6 ft 3-prong AC cord into a 100-240V 50-60Hz wall outlet, then connect the 6 ft DC cord to the laptop's 20V 8.5A input; the common mistake is using this 170W unit on a model that requires the 230W charger.

What maintenance or replacement will this adapter need later?

No scheduled maintenance is required; replace the unit if the cords show wear, the output drops below 20V 8.5A, or the ruggedised case is cracked from impact or moisture ingress.

What limit appears first under sustained full-load use?

The 170W maximum output is the first limit; if the laptop draws more than 8.5A at 20V the adapter will hit its power ceiling before thermal protection activates.

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