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Black rectangular AC adapter with 7.9mm and 5.5mm barrel connectors

WAWEIS

WAWEIS 135W 20V 6.75A 7.9mm 5.5mm AC Adapter for ThinkPad W510 T520 T520I

SKU CH-4984-29HS4

135 W 20 V 6.75 A replacement charger fits ThinkPad W510 and T520 models with a 10 ft cord and safety protections

  • 135W output powers demanding ThinkPad workloads
  • 20V 6.75A matches original charger specifications
  • 9mm 5.5mm tip fits W510 T520 series
  • 10ft total cord length gives flexible placement
  • FCC CE RoHS certified with multiple safety protections

135 W 20 V 6.75 A AC Adapter

This 135 W AC adapter delivers 20 V at 6.75 A through a 7.9 mm by 5.5 mm barrel connector. It accepts a world-wide input range of 100 to 240 VAC at 50 or 60 Hz. The unit includes a total power cord length of 10 ft and carries FCC, CE and RoHS certifications. Safety features include over-current, over-voltage, total-power and short-circuit protection.

ThinkPad W510 T520 T520I owners needing

The adapter matches part numbers 55Y9317, 45N0052, 45N0053, 45N0054, 45N0055, 45N0056 and 45N0057 for direct compatibility with the listed ThinkPad models. Buyers whose laptops require a different voltage, amperage or connector size should look at another power supply. Users needing a higher wattage unit for more demanding hardware will not be served by this 135 W design.

135 W continuous output for compatible ThinkPad

The 135 W rating comfortably powers the specified W510, T520 and T520I systems under normal and heavy loads. Headroom exists for typical charging while the machine is in use. The adapter reaches its limit if the connected laptop draws more than 135 W, which can occur with certain high-performance configurations or docked setups.

Highlights

  • 135W output powers demanding ThinkPad workloads
  • 20V 6.75A matches original charger specifications
  • 9mm 5.5mm tip fits W510 T520 series
  • 10ft total cord length gives flexible placement
  • FCC CE RoHS certified with multiple safety protections

Specifications

No published specifications for this item yet.

Questions about this item

Does the 7.9 mm by 5.5 mm tip fit my ThinkPad T520 without an extra cable?

Yes, the 7.9 mm by 5.5 mm barrel connector matches the original ThinkPad W510, T520 and T520I power port, so no adapter cable is needed.

Will the 100–240 V input let me keep using my older 135 W ThinkPad charger on the same power strip?

The adapter accepts 100–240 VAC at 50/60 Hz, so it works on the same mains supply as your existing charger without any voltage selector.

How can I confirm the 135 W output is active after plugging it in?

The laptop charging indicator lights and the battery icon shows AC power when the 20 V 6.75 A output is delivering 135 W to the system.

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