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Black rectangular 135W AC adapter with 10 ft power cord

WAWEIS

WAWEIS 135W AC/DC Adapter for Lenovo ThinkPad T520 4239CTO laptop battery

SKU CH-AAGG-2RX5H

135 W replacement charger for ThinkPad T520 4239CTO with 10 ft cord and safety protections

  • World-wide 100-240 V input lets you charge anywhere
  • 135 W output matches the ThinkPad T520 4239CTO power requirement
  • 10 ft cord gives generous reach from wall outlet to desk
  • Over-current, over-voltage and short-circuit protection safeguards the laptop
  • FCC, CE and RoHS certified for safety compliance

135W AC/DC Adapter for ThinkPad T520

This 135 watt power supply replaces the original charger for Lenovo ThinkPad T520 4239CTO and related 4239 4240 4241 models. It accepts worldwide input voltage from 100 to 240VAC at 50 or 60Hz. The unit includes a 10 foot power cord for flexible placement. Safety certifications include FCC CE and RoHS.

Sustained load protection

Over current protection and total power protection guard the adapter during continuous operation. Over voltage protection and short circuit protection add further electrical safeguards. A smart chip provides overheating protection under prolonged use. High quality wires and isolation materials reduce interference and support stable output.

Compatibility check before ordering

Verify your laptop is a ThinkPad T520 4239CTO or one of the listed 4239 4240 4241 variants. Confirm the original charger rating matches 135 watts. Ensure the connector tip fits your device charging port. Buyers needing a different wattage or connector type should select another model.

Highlights

  • World-wide 100-240 V input lets you charge anywhere
  • 135 W output matches the ThinkPad T520 4239CTO power requirement
  • 10 ft cord gives generous reach from wall outlet to desk
  • Over-current, over-voltage and short-circuit protection safeguards the laptop
  • FCC, CE and RoHS certified for safety compliance

Specifications

No published specifications for this item yet.

Questions about this item

Does the 135W adapter run hot or noisy when powering a ThinkPad T520 all day?

The unit has overload, over-voltage, short-circuit and overheating protection with a smart chip, so it stays cool and silent during continuous use.

What must I already own for this charger to work with my ThinkPad T520 4239CTO?

You only need the laptop itself; the adapter includes a 10 ft power cord and matches the original connector and voltage.

Can I keep using my existing ThinkPad dock or spare batteries with this 135W supply?

Yes, it is fully OEM-compatible with the T520 series (4239, 4240, 4241 CTO models), so docks and batteries work unchanged.

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