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Black rectangular 65 W laptop AC adapter with detachable power cord

myVolts

myVolts 65 W AC Adapter for Lenovo B40 B41 B50 B51

SKU CH-95ZF-HPWAF

65 W AC adapter powers compatible Lenovo B-series laptops with 20 V 3.25 A output and includes a UL-listed power cord

  • Delivers 65 W at 20 V 3.25 A for reliable Lenovo charging
  • Also powers 45 W models with 20 V 2.25 A compatibility
  • Works worldwide on 100-240 V input voltage range
  • UL listed certification confirms rigorous safety testing
  • Includes both power adapter and UL listed power cord

65 W AC Adapter for Lenovo B-Series

This 65-watt AC adapter replaces the original power supply for Lenovo B40, B41, B50 and B51 laptops, including the numerous sub-models such as B50-80, B40-30 and B51-35. It delivers 20 volts at 3.25 amps and is also compatible with devices that require the lower 45-watt 20-volt 2.25-amp rating. The unit ships with a UL-listed power cord and carries a 365-day manufacturer warranty.

Input Range and Connector Constraints

The adapter accepts a universal input range of 100 to 240 volts, making it suitable for international travel without a voltage converter. Its output is fixed at 20 volts, so it cannot power laptops that require a different voltage or a higher wattage than 65 watts. The barrel connector is sized for the listed Lenovo models only; other brands or newer Lenovo series with USB-C charging are not supported.

Replaces Lost or Failing 45 W and 65 W Units

This adapter directly substitutes a lost, damaged or ageing 45-watt or 65-watt Lenovo brick for the B-series range. The jump is worth it when the original unit no longer holds a charge, the cable is frayed, or a spare is needed for a second location. It does not upgrade performance or charging speed beyond the laptop's own design limits, and it will not work for buyers who need higher wattage, USB-C output or compatibility with non-Lenovo hardware.

How it compares

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

Price $18.99
Cheaper than about 74% of the 27,790 comparable items (median $30.99).

Specifications

No published specifications for this item yet.

Questions about this item

Which Lenovo B-series models does this 65 W adapter support?

It fits Lenovo B40, B41, B50 and B51 families including the 30, 35, 45, 70 and 80 sub-models listed in the compatibility list.

What does the 65 W rating mean when the laptop only draws 45 W?

The adapter delivers up to 20 V at 3.25 A for 65 W, and it also works with systems that require 20 V at 2.25 A for 45 W.

What input voltage range does the power supply accept?

The unit accepts 100 V to 240 V AC, so it operates on mains worldwide without a separate voltage switch.

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