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Black rectangular AC adapter with 5.5mm 2.5mm barrel connector

BASEUS

BASEUS 13.5V 1A AC Adapter 5.5mm 2.5mm Positive Center

SKU CH-YDC7-4BDX8

A 13.5 V 1 A replacement power supply with a 5.5 mm by 2.5 mm positive-centre barrel plug and built-in over-voltage, over-current and short-circuit protection

  • TypeAC Adapters
  • Delivers stable 13.5 V 1 A power for compatible laptops
  • Accepts worldwide 100-240 V input at 50/60 Hz
  • 5 mm × 2.5 mm tip with positive centre ensures correct fit
  • Flame-retardant shell resists scratches, bumps and drops
  • Built-in over-voltage, over-current, short-circuit and input protection safeguards devices

Replacement charger for 13.5 V devices

This AC adapter supplies 13.5 volts at one ampere for laptops and other equipment that use a 5.5 mm outer and 2.5 mm inner barrel connector with positive centre polarity. It accepts mains input from 100 to 240 volts AC at 50 or 60 hertz, making it suitable for worldwide use. The unit is a compatible replacement rather than an original manufacturer part.

Flame-retardant shell with built-in protections

The housing is made from a sturdy flame-retardant material designed to resist scratches, bumps, drops and pressure, helping to keep internal components safe during daily handling. Integrated safeguards include over-voltage, over-current, short-circuit and input protection to support stable and safe operation. A standard mains plug allows direct connection to wall sockets in living rooms, bedrooms, offices or other indoor spaces.

Fixed 13.5 V 1 A output limits flexibility

The adapter delivers a single fixed voltage and current rating, so it cannot power devices that require a different voltage, a higher current or selectable output levels. The proprietary 5.5 mm by 2.5 mm barrel connector with positive centre restricts use to equipment with that exact jack size and polarity. Buyers needing adjustable voltage, higher wattage or a different connector type will require a different power supply.

Highlights

  • Delivers stable 13.5 V 1 A power for compatible laptops
  • Accepts worldwide 100-240 V input at 50/60 Hz
  • 5 mm × 2.5 mm tip with positive centre ensures correct fit
  • Flame-retardant shell resists scratches, bumps and drops
  • Built-in over-voltage, over-current, short-circuit and input protection safeguards devices

Specifications

TypeAC Adapters

Questions about this item

What voltage and current does the 13.5 V 1 A adapter deliver through its 5.5 mm × 2.5 mm barrel connector?

It supplies 13.5 V at 1 A through a centre-positive 5.5 mm outer by 2.5 mm inner barrel plug.

What are the outer and inner diameters of the DC plug that must match the laptop jack?

The plug measures 5.5 mm outer diameter and 2.5 mm inner diameter with a positive centre pin.

How do I connect the adapter to mains power and the laptop without reversing polarity?

Plug the IEC C7 lead into the adapter, insert the barrel into the laptop ensuring the centre pin is positive, then connect the mains plug to a 100-240 V 50/60 Hz socket.

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