We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular AC adapter with 4.0mm x 1.7mm barrel tip and 6.5 ft cord

WAWEIS

WAWEIS 4.5V 1A AC Adapter 4.0mm x 1.7mm Tip

SKU CH-K8BN-AWMK9

Supplies 4.5 V at 1 A through a 4.0 mm × 1.7 mm tip with a 6.5 ft cord and 100–240 V input

  • World-wide 100-240V input works anywhere
  • 5 ft cord reaches distant outlets
  • FCC, CE and RoHS certified for safety
  • Multiple protections guard against over-voltage and short circuits
  • 1 A output powers devices needing up to 1000 mA

Power input and connector

This WAWEIS AC adapter accepts worldwide mains voltage from 100 to 240 VAC at 50 or 60 Hz. It delivers a regulated 4.5 VDC output at up to 1 A through a 4.0 mm outer and 1.7 mm inner barrel tip with positive inside polarity. The unit replaces the original charger for compatible laptops and devices that require this exact voltage and connector size. Total cable length is 6.5 ft for flexible placement.

Protection and heat in normal use

Built-in safeguards include over-current, over-voltage, short-circuit and total-power protection to shield both the adapter and the connected device. A smart chip provides over-heating protection while anti-interference materials improve isolation during everyday charging. The adapter runs quietly with no moving parts and maintains stable output for loads from 100 mA up to the full 1000 mA rating. Certifications cover FCC, CE and RoHS compliance.

Behaviour under sustained load

Continuous operation at the rated 1 A output is supported by the overload and thermal protection circuits without shutdown in typical ambient conditions. The 6.5 ft cord allows routing away from heat sources to help long-term reliability. Buyers who need higher current or a different voltage should select another model. Units requiring a larger barrel diameter or centre-negative polarity are not compatible with this tip.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $9.99
Cheaper than about 92% of the 27,790 comparable items (median $30.99).

Specifications

No published specifications for this item yet.

Questions about this item

How do I connect the 4.0 mm x 1.7 mm tip and which polarity does it need?

The tip has a 4.0 mm outer diameter and 1.7 mm inner diameter with positive inside; plug it straight into the device's DC jack until it seats firmly.

Which parts of the 6.5 ft cord or adapter typically wear out first?

The DC cable near the tip and the strain relief at the brick are the common wear points; inspect them periodically for fraying or loose connections.

At what load does the over-current protection trip during continuous use?

The adapter is rated for 1000 mA output; the built-in over-current protection activates if the draw exceeds that 1 A limit.

More in Laptop Chargers & Batteries

Similar items