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White square power brick with magnetic T-tip cable and LED indicator

Kenuco

Kenuco 85W T-Tip AC Adapter 13-15 inch Retina post-2012

SKU CH-8E5W-YQ688

85 W AC adapter with T-Tip magnetic connector for 13–15 inch Retina MacBook Pro models after mid-2012

  • TypeAC Adapters
  • 85 W output charges 13-15 inch Retina models efficiently
  • T-Tip magnetic connector guides plug in and releases under strain
  • 100-240 V 50-60 Hz input works worldwide without a converter
  • Built-in IC chip protects against over-current, over-heat and short-circuit
  • Compact 3.15 inch cube design fits easily in a travel bag

85W T-Tip AC Adapter for Retina MacBook Pro

This 85W replacement adapter fits 13 inch and 15 inch Retina MacBook Pro models released after mid 2012. It uses a T-Tip magnetic connector that guides the plug into the port and releases safely under strain. The unit is intended for owners of compatible MacBook Pro laptops who need a spare or replacement charger.

Thermals noise and power draw

The adapter accepts AC 100 to 240V input at 1.5A across 50 to 60Hz and delivers DC 20V at 4.25A for 85W output. Built-in IC chip technology provides over-current, over-heat, short-circuit and overload protection during normal use. The compact cube body measures 3.15 by 3.15 by 1.10 inches and includes an LED indicator showing amber while charging and green when fully charged.

Upgrades and limits

This adapter replaces the original Apple charger for models including A1398, A1424, MC975, MD506, ME293, ME294, ME664, ME665, MGXA2, MGXC2 and MJLT2. It is not compatible with 2020 to 2024 MacBook models that use a Magnetic 3 T-Tip connector. Buyers who need a charger for those newer laptops should look elsewhere.

Highlights

  • 85 W output charges 13-15 inch Retina models efficiently
  • T-Tip magnetic connector guides plug in and releases under strain
  • 100-240 V 50-60 Hz input works worldwide without a converter
  • Built-in IC chip protects against over-current, over-heat and short-circuit
  • Compact 3.15 inch cube design fits easily in a travel bag

Specifications

TypeAC Adapters

Questions about this item

How do I connect the T-Tip magnetic connector to my MacBook Pro 13 or 15 inch Retina post-2012, and what is the common mistake?

Align the T-Tip magnet with the charging port so it seats fully; the common mistake is stopping at the first magnetic catch without pushing until the connector clicks into place.

What maintenance or replacement will this 85W adapter need over time?

The detachable AC cord can be swapped if the IEC C7 plug or cable sheath wears; the brick itself has no user-serviceable parts and is replaced as a unit if the 20 V 4.25 A output fails.

What limit appears first when this charger runs at full 85 W for long periods?

The built-in IC protection triggers over-heat shutdown before the 100-240 V 1.5 A input or 20 V 4.25 A output ratings are exceeded.

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