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Black rectangular 135W USB-C power adapter with detachable UK cord

Adafruit

Adafruit 135W USB-C AC Adapter 20V 6.75A 2 in 1 accessory

SKU CH-QCFE-DGX3A

A 135W USB-C power adapter delivering 20V 6.75A for compatible Lenovo laptops and Thunderbolt docks, weighing 478g with a 1.2m detachable UK cord and 100-240V input

  • 135 W USB-C output powers demanding Lenovo laptops and docks
  • 20 V 6.75 A delivery matches high-performance ThinkPad and Legion models
  • 100-240 V input with 1.2 m UK cord works worldwide
  • 478 g weight and 14.56.53 cm profile slip into carry-on bags
  • Smart chip with LBS protects against overcharge, overcurrent and short circuits

135W USB-C Charger for Lenovo Laptops

This 135W AC adapter delivers 20V at 6.75A through a USB-C connector. It targets owners of Legion Y520, Y530, Y730, ThinkPad X1 Extreme Gen 1-4, P1, P15v, T15p, Yoga Slim 7 Pro and IdeaPad Gaming 3 models needing a replacement or spare power supply. It also suits ThinkPad Thunderbolt Dock and Yoga 9-15IMH5 users. Buyers whose laptops require a different voltage, amperage or barrel connector cannot use this unit.

Thermal and Electrical Behaviour

The adapter accepts a wide 100-240V input for worldwide use. A built-in smart chip and LBS Load Break Switch provide multi-layer protection against overcharging, overcurrent and short circuits. Overheat protection is integrated to maintain safe surface temperatures during sustained loads. The brick weighs 478g and measures 14.56.53cm, while a detachable 1.2m UK AC cord extends total reach to 9.84ft.

Decisive Specification: 20V 6.75A USB-C Output

The single figure that determines compatibility is the 20V 6.75A USB-C output profile. Only devices engineered for this exact voltage and current combination will charge correctly. Systems expecting a lower wattage, a proprietary barrel tip or a different USB-C power contract will not work with this adapter.

How it compares

Measured against everything we stock in 2-in-1 Device Accessories, at today’s prices. Recalculated every night.

Price $41.99
Cheaper than about 78% of the 7,473 comparable items (median $56.99).

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Specifications

No published specifications for this item yet.

Questions about this item

How do I install the 135W USB-C AC adapter, and what step is often missed?

Connect the 1.2 m detachable UK AC cord to the adapter, then plug the USB-C connector into the laptop; the step often missed is ensuring the cord is fully seated in the adapter before connecting to the wall outlet.

What maintenance or replacement will the 135W USB-C AC adapter need later?

The detachable 1.2 m UK AC cord may wear from repeated bending; replace it with a compatible IEC C7 cord if the insulation cracks or the plug becomes loose.

What limit appears first on the 135W USB-C AC adapter under sustained use?

The built-in smart chip and LBS protection will throttle output if internal temperature exceeds safe thresholds, limiting continuous 20 V 6.75 A delivery until the unit cools.

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