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Black rectangular 20V 2A 40W AC adapter with 5.5mm 2.5mm connector and power cord

E-buy

E-buy 20 V 2 A 40 W AC adapter for Lenovo IdeaPad S10-423135U Black

SKU CH-8PRJ-43EGY

Replacement AC adapter delivering 20 V at 2 A for 40 W output with a 5.5 mm by 2.5 mm connector and region-specific power cord included

  • Power adapter voltage20A
  • Power adapter current4A
  • Delivers 40 W output for reliable Lenovo IdeaPad charging
  • 20 V 2 A DC output matches original power requirements
  • 100–240 V 50–60 Hz input works worldwide
  • 5 mm × 2.5 mm connector fits S10-423135U port
  • Includes matching AC power cord for immediate use

Replacement AC adapter for IdeaPad S10-423135U

This 20 V 2 A 40 W unit supplies the exact voltage and current the Lenovo IdeaPad S10-423135U expects. It replaces a lost or failed original charger so the laptop can charge and run simultaneously. The package includes the adapter and a detachable power cord.

Upgrade from damaged or missing original charger

Swapping in this adapter is worth it when the original brick no longer delivers stable 20 V output or the cable has frayed. It restores full charging speed without requiring a higher-wattage model. Buyers who need a second unit for travel or a dock should note this is a single-adapter package.

Steady 40 W output under continuous load

The adapter maintains its rated 40 W during prolonged charging sessions thanks to a 100–240 V 50–60 Hz input range and built-in protection circuits. The 5.5 mm × 2.5 mm barrel connector seats firmly to prevent intermittent contact. It is not suited for devices that require more than 2 A at 20 V.

How it compares

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

Price $14.99
Cheaper than about 83% of the 27,790 comparable items (median $30.99).

Specifications

Power
Power adapter voltage20A
Power adapter current4A

Questions about this item

Will the 5.5 mm by 2.5 mm connector fit my Lenovo IdeaPad S10-423135U?

The adapter uses a 5.5 mm by 2.5 mm barrel connector designed for compatible Lenovo IdeaPad models including the S10-423135U.

How do I install the adapter, and what step is often missed?

Connect the DC plug to the laptop first, then attach the AC cord to the adapter, and finally plug into a 100-240 V 50-60 Hz outlet.

When will the power cord or adapter need replacement?

The unit carries a 24-month warranty; replace the cord if insulation cracks or the adapter if output drops below 20 V 2 A.

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