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Black rectangular power brick with 4.0x1.7mm round tip connector and detachable mains cable

myVolts

myVolts 65W 45W 4.0x1.7mm Round Tip AC Adapter

SKU CH-2HBC-NTGKV

A 65W or 45W universal laptop charger with a 4.0x1.7mm round tip, 110-240V input and built-in safety protections

  • Powers Lenovo 65 W and 45 W laptops
  • 0 × 1.7 mm tip fits listed IdeaPad and Yoga models
  • 110–240 V input works worldwide
  • circuit, over-voltage, over-current and over-temperature protection built in
  • 0 quick-charge technology compliant with UL requirements

Universal laptop charger

The myVolts AC adapter delivers 20V at 3.25A for 65W or 20V at 2.25A for 45W across a 110-240V 50/60Hz input range. A 4.0x1.7mm round tip fits compatible Lenovo IdeaPad and Yoga models. It serves as a replacement or spare power supply for listed devices.

Thermals noise and power

Safety mechanisms protect against short circuiting overvoltage overcurrent and internal overheating. The adapter meets UL requirements for safe operation. Energy-efficient design minimises waste heat during normal charging. No fan is present so the unit runs silently.

Connector compatibility

The 4.0x1.7mm round tip determines whether this charger fits your laptop. Check the port size on your device before purchase. Buyers needing a different tip diameter or a USB-C connector cannot use this adapter.

Highlights

  • Powers Lenovo 65 W and 45 W laptops
  • 0 × 1.7 mm tip fits listed IdeaPad and Yoga models
  • 110–240 V input works worldwide
  • circuit, over-voltage, over-current and over-temperature protection built in
  • 0 quick-charge technology compliant with UL requirements

Specifications

No published specifications for this item yet.

Questions about this item

How do I connect the 4.0 x 1.7 mm round tip to my Lenovo laptop?

Align the round tip with the laptop’s DC-in jack and push straight in until it seats firmly; the step users often miss is verifying the 20 V 3.25 A or 20 V 2.25 A label matches the original charger before plugging into 110–240 V mains.

Which parts of this adapter will need replacement over time?

The detachable AC power cord and the DC cable with the 4.0 x 1.7 mm connector are the wear items; the internal protection circuits against short circuit, over-voltage, over-current and over-heating are sealed and not user-serviceable.

What is the first limit reached during continuous 65 W operation?

The internal over-temperature protection triggers first if sustained 20 V 3.25 A load causes excessive heat buildup, automatically shutting down the adapter until it cools.

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