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Black round-tip AC adapter with attached power cord

Unbranded 65W/45W Round Tip AC Adapter for Lenovo IdeaPad 1/3/5 Slim Flex

SKU CH-5HNG-Z456J

Replacement 65W or 45W round-tip charger for Lenovo IdeaPad 1, 3, 5, Slim and Flex laptops, 20V output with over-voltage and overheat protection

  • Battery typeAC & DC
  • Battery voltage rating20 V
  • Power adapter voltage20 V
  • Power adapter current4.25A
  • Power adapter wattage20 V * 3.25 A
  • Main functionFor Lenovo IdeaPad, For Lenovo Yoga, For Flex
  • Delivers stable 20V 3.25A 65W or 45W power with built-in overvoltage and overheating protection
  • Works with Lenovo IdeaPad 1 3 5 Slim Flex V14 V15 S145 S340 S540 320 330 round-tip models
  • Extended flexible cable reaches outlets behind desks beside beds or across hotel rooms
  • Compact lightweight design fits laptop bags and withstands daily plugging and unplugging
  • Includes AC adapter and power cord ready for immediate use

Power Output

This AC adapter supplies 65 W or 45 W at 20 V for Lenovo laptops that use a 4.0 mm round tip. It covers IdeaPad 1, 3, 5, Slim and Flex models as well as V14, V15 and V17 series notebooks. The unit auto-switches between the two power levels so one charger serves multiple devices.

Build Integration

The adapter accepts 110–240 V mains input for worldwide use without a separate converter. An extended power cord reaches outlets behind desks or across hotel rooms, while the compact brick slips into a laptop bag. No USB-C output is provided, so only round-tip models are supported.

Sustained Load

Intelligent protection guards against overcurrent, overvoltage, short circuit and overheating during long charging sessions. Premium copper-core wiring maintains stable voltage delivery when the battery is deeply depleted or the system runs demanding workloads. Reinforced connectors resist wear from daily plugging and unplugging.

How it compares

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

Price $7.99
Cheaper than about 94% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameUnbranded
Product colorBlack
Product typeAC & DC
Power
Battery typeAC & DC
Battery voltage rating20 V
Power adapter voltage20 V
Power adapter current4.25A
Power adapter wattage20 V * 3.25 A
Compatibility
Compatible withLenovo IdeaPad 1 3 5 Series, IdeaPad Silm 3 5 7 Series, IdeaPad Flex / Pro Series, For Lenovo, For Lenovo IdeaPad, For Lenovo Yoga, For Flex
More details
Main functionFor Lenovo IdeaPad, For Lenovo Yoga, For Flex

Questions about this item

What is the maximum output power this adapter can sustain for a Lenovo IdeaPad?

The adapter delivers up to 65 W at 20 V and 3.25 A, and also supports 45 W at 20 V and 2.25 A for compatible models.

How hot or noisy does the unit get when left plugged in all day?

Built-in over-temperature and over-current protection keeps the charger running cool and silent during continuous daily use.

Which Lenovo tip style must my laptop already have for this charger to fit?

Your laptop must use the 4.0 mm round barrel connector; this adapter is not compatible with USB-C charging ports.

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