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Black rectangular AC adapter with 5.5 mm barrel connector and detachable power cord

E-buy

E-buy 20V 2A 40W AC adapter for Lenovo IdeaPad S9 LN-A0403A3C 2LF

SKU CH-ZG9E-J4W2A

20 V, 2 A, 40 W AC adapter with 5.5 mm × 2.5 mm connector and included power cord for Lenovo IdeaPad S9 series

  • AC Adapter Voltage20A
  • AC Adapter Current4A
  • Delivers 40 W output to match the laptop's power requirement
  • 20 V 2 A DC output matches the original adapter specification
  • 5 mm × 2.5 mm connector ensures a secure fit
  • 100–240 V 50–60 Hz input works worldwide with the included cord
  • 24-month warranty period provides long-term confidence

Compatible Power Adapter

This 20V 2A 40W AC adapter replaces the Lenovo LN-A0403A3C charger for IdeaPad S9 laptops. It accepts 100 to 240V input at 50 to 60Hz and delivers a steady 20V DC output through a 5.5 mm by 2.5 mm barrel connector. A matching power cord for your region is included in the box. The unit carries a 24 month warranty from the supplier.

Who This Suits

Owners of a compatible Lenovo IdeaPad S9 model who need a direct replacement for a lost or damaged original charger will find the correct voltage and tip size here. Buyers whose laptop requires a different output voltage, a higher current rating, or an alternative connector such as USB-C should look at other options. The adapter is designed for indoor use with standard mains sockets.

Deciding Specification

The critical figure is the 20V 2A 40W DC output combined with the 5.5 mm by 2.5 mm barrel plug. Match both the electrical ratings and the physical connector to your device label before ordering.

Highlights

  • Delivers 40 W output to match the laptop's power requirement
  • 20 V 2 A DC output matches the original adapter specification
  • 5 mm × 2.5 mm connector ensures a secure fit
  • 100–240 V 50–60 Hz input works worldwide with the included cord
  • 24-month warranty period provides long-term confidence

Specifications

AC Adapter Voltage20A
AC Adapter Current4A

Questions about this item

Should I choose the US, UK, EU or AU plug version for my Lenovo IdeaPad S9?

The package includes a power cord that matches your country's outlet, so select the plug type that corresponds to your local mains socket.

What does the 20V 2A 40W output mean for my laptop?

It delivers exactly 20 volts at up to 2 amps, providing 40 watts of power to run the IdeaPad S9 and charge its battery.

Does the 5.5 mm × 2.5 mm barrel connector fit the Lenovo IdeaPad S9 charging port?

Yes, the 5.5 mm by 2.5 mm connector matches the DC input on the IdeaPad S9 series.

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