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 7.4 mm smart pin tip and 10 ft cord

WAWEIS

WAWEIS 18.5V 3.5A AC Adapter for HP N136 N18197 7.4mm Smart Pin

SKU CH-MW80-RR6PY

18.5 V 3.5 A AC adapter with 7.4 mm smart-pin tip replaces HP N136 and N18197 chargers, includes 10 ft cord and FCC, CE, RoHS certified protections

  • World-wide 100-240 V input suits any mains supply
  • 5 V 3.5 A output matches original HP N136 N18197 specification
  • 4 mm smart-pin connector ensures correct fit and communication
  • Ten-foot total cord length gives flexible desk placement
  • FCC CE RoHS certified with over-current over-voltage short-circuit protection

WAWEIS 18.5V 3.5A Smart Pin Adapter

This WAWEIS AC adapter delivers 18.5V at 3.5A through a 7.4mm barrel plug with a smart centre pin. It accepts 100-240VAC input at 50/60Hz and includes a 10 ft power cord. Safety features cover over current, over voltage, short circuit and total power protection. FCC, CE and RoHS certifications are listed.

Suits owners of HP N136

Buyers whose devices require a different voltage, current or plug geometry should look elsewhere. The adapter is built for the specific models named and is not intended for universal use across other brands or series. Compatibility is limited to the listed part numbers.

7.4mm smart pin connector decides fit

The 7.4mm outer diameter barrel with an internal smart centre pin is the single specification that determines whether this unit will mate with the laptop. If the original charger uses a different tip size or lacks the centre pin, this adapter will not connect or communicate correctly.

Highlights

  • World-wide 100-240 V input suits any mains supply
  • 5 V 3.5 A output matches original HP N136 N18197 specification
  • 4 mm smart-pin connector ensures correct fit and communication
  • Ten-foot total cord length gives flexible desk placement
  • FCC CE RoHS certified with over-current over-voltage short-circuit protection

Specifications

No published specifications for this item yet.

Questions about this item

Is the 7.4 mm smart-pin tip the only version available for this adapter?

The listing specifies a single 7.4 mm smart-pin connector; no other tip sizes or versions are mentioned.

What does the 18.5 V 3.5 A rating deliver in everyday use?

It provides the exact voltage and current the original HP charger supplies, powering the laptop and charging the battery simultaneously.

Does the 100-240 V 50/60 Hz input cover mains worldwide?

Yes, the wide-range input works on 100-240 V at 50 or 60 Hz, so the adapter can be used in most countries with only a plug adapter.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.