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White rectangular 85W power brick with T-tip magnetic connector and LED indicator

Corn Electronics

Corn Electronics 85W T-Tip AC Adapter for MacBook Pro 15 17 inch post-2012

SKU CH-7KRV-4QVJ1

85 W T-tip power adapter charges 15- and 17-inch MacBook Pro models from June 2012 onward with built-in safety protections and LED status indicator

Type T-tip 85W

  • 85W output matches original MacBook Pro charging performance
  • T-Tip connector fits 15-inch and 17-inch models released after June 2012
  • Universal AC 100-240V input works worldwide without a voltage converter
  • Built-in IC chip protects against over-current, over-heat, short-circuit and overload
  • LED indicator shows amber while charging and green when fully charged

85W T-Tip Adapter for MacBook Pro

This 85-watt AC adapter uses a T-tip magnetic connector designed for MacBook Pro 15-inch and 17-inch models released after June 2012. It accepts a wide AC input range of 100 to 240 volts at 1.5 amps and delivers a steady 20 volts at 4.25 amps. The unit is sold new and built to match original charging performance.

Protection and status features

An integrated IC chip provides over-current, over-heat, short-circuit and overload protection. The adapter carries UL, CE, FCC and RoHS certifications. A built-in LED on the connector head shows amber while charging and green when the battery reaches full capacity, giving immediate visual feedback.

Compatibility check before ordering

Verify that your MacBook Pro is a 15-inch or 17-inch model released after June 2012, as earlier models use a different connector style. Confirm the original charger was rated at 85 watts with a 20-volt output. Ensure the AC inlet matches a standard IEC C7 or C5 socket for the supplied cable.

Highlights

  • 85W output matches original MacBook Pro charging performance
  • T-Tip connector fits 15-inch and 17-inch models released after June 2012
  • Universal AC 100-240V input works worldwide without a voltage converter
  • Built-in IC chip protects against over-current, over-heat, short-circuit and overload
  • LED indicator shows amber while charging and green when fully charged

Specifications

No published specifications for this item yet.

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Questions about this item

Will the T-tip connector or the cable need replacing first on this 85W adapter?

The T-tip connector includes an LED indicator for charging status, and the cable is fixed to the power brick, so neither is designed as a user-replaceable part.

What limits continuous output before the protection circuits engage?

The adapter is rated for 20V at 4.25A, and its built-in IC chip triggers over-current and overload protection if that limit is exceeded.

How warm does the brick get and does it make any noise when powering a 15-inch MacBook Pro all day?

The unit has no fan, so it runs silently; heat is dissipated through the case and the IC chip provides over-heat protection if temperatures rise too high.

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