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Black rectangular AC adapter with 40W 19V output for Lenovo ThinkPad

Battery Technology Inc.

Battery Technology Inc. 0B47030-BTI AC Adapter 40W 19V Lenovo ThinkPad 0B47030

SKU CH-8H24-AR189 MPN 0B47030-BTI

40 W 19 V AC adapter replaces Lenovo ThinkPad part 0B47030 for compatible laptops

  • Battery typeAC Adapters
  • Power adapter wattage40 W
  • Product typeAC Adapter
  • Compatible withLenovo ThinkPad 0B47030
  • Key featuresAC Adapter 40 W Lenovo ThinkPad 0B47030
  • Delivers reliable 40 W power for compatible ThinkPad models
  • 19 V output matches original Lenovo 0B47030 specifications
  • Brand-new BTI unit replaces lost or damaged OEM adapters
  • Direct-fit design works with Lenovo ThinkPad 0B47030 part number
  • 40 W AC adapter restores full charging capability on supported laptops

Purpose and fit

This 40W AC adapter is built as a direct replacement for Lenovo ThinkPad systems that use the OEM 0B47030 part. It supplies the 19V output those notebooks expect, so it suits owners who need a spare or replacement charger for compatible ThinkPad models.

Sustained operation

The adapter is rated to deliver 40W continuously, meaning it can keep the laptop powered and charging during typical office workloads without throttling or overheating. Its output remains stable across the full session rather than only in short bursts.

Deciding specification

The 40W power rating is the single figure that determines whether this unit matches the original charger; a higher or lower wattage unit would not be a correct substitute for the 0B47030 requirement.

How it compares

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

Price $35.99
Pricier than about 64% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameBTI
Model name0B47030-BTI
Product typeAC Adapter
Power
Battery typeAC Adapters
Power adapter wattage40 W
Size & build
Shipping weight0.45 kg
Package size254 × 203 × 76 mm
Compatibility
Compatible withLenovo ThinkPad 0B47030

Questions about this item

Does the 40 W output stay cool enough for all-day use on a desk?

The adapter delivers 40 W at 19 V and is designed for continuous operation; typical wall-plug units of this class run warm but within normal thermal limits for desktop use.

What must I already own for this 19 V 40 W unit to power my laptop?

You need a Lenovo ThinkPad that accepts the 0B47030 part number and a standard IEC C7 or C5 mains lead for your region.

Will this 19 V 40 W adapter work with a ThinkPad that originally used the same 0B47030 part?

Yes, it is a direct replacement for the OEM 0B47030 adapter, matching the 19 V 40 W specification for compatible ThinkPad models.

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