# Lenovo Original 45W 20V 3.25A Round Pin AC Adapter Charger with Power Cord

### The Perfect Partner for Your Laptop on the Go

Always on the go? Stop lugging your adapter back and forth between home and office. Get a second adapter for your laptop or Tablet and keep one in the office and one for home or travel.

Genuine Lenovo brand parts undergo rigorous testing by qualified engineers to ensure compatibility and reliability in your system.

Lenovo branded adapters 100 percent compatible with original manufacture's device.  
Limited one year warranty guarantees replacement if branded part should fail, it will be replaced.

### Troubleshooting Adapter Issues

Inspect the adapter, cables and adapter port on the laptop for damages

The adapter cable and power cables may get frayed or cut, and wires may become exposed at either end of the cables. This may be due to the way the cable is wrapped around the adapter, or if the cable is subject to undue stress. If the damage is severe enough to expose wires, you should discontinue using the adapter. To check the adapter, cables, and adapter port on the laptop for any damages:

-   Unplug the adapter from the wall outlet.
-   Unplug the adapter from the PC.
-   Check the adapter and cables (including the power cable) for signs of physical damage or overheating.
-   Check if the pin inside the plug or adapter port is bent, broken, or damaged.

Verify the wall outlet is working correctly

-   Unplug the adapter from the wall outlet.
-   Connect another device on the wall outlet to verify if the wall outlet is working correctly.
-   Try a known-good wall outlet.
-   Plug the adapter directly to the wall outlet.  
    Bypass any power regulators like surge protectors, UPS (uninterruptible power supply), power splitters, etc.

Drain residual power

-   Unplug the adapter from the wall outlet.
-   Disconnect any external peripherals that are connected to the PC.
-   Remove the battery. Refer to the User Manual of the PC for instructions on how to remove the battery.  
    If the laptop PC has a non-removable battery, skip this step.
-   Press and hold the Power button for 30 seconds to drain a residual power from the PC.
-   Connect the battery.
-   Plug the adapter to the PC.
-   Turn on the PC.

Disconnect and reconnect the power cable and adapter

-   Unplug the adapter from the wall outlet.
-   Unplug the adapter from the PC.
-   Disconnect the power cable from the adapter.
-   Connect the power cable firmly to the adapter.

Update the BIOS

The BIOS is firmware that is embedded onto the System Board of your computer. Updating the BIOS to the latest version may help the PC recognize the adapter. Updating the BIOS to the latest version requires the laptop PC to be powered by the adapter and battery.

### Technical Specifications

Product Type

Laptop Adapter

Product Brand

Lenovo

Power Output

20V @ 2.25A

Power Capacity

45W 

Compatible Part Numbers

GX20K11840  
GX20K11845  
GX20K11838  
GX20K11844  
GX20K11843  
GX20K11837  
GX20K11842  
GX20K1184  
GX20K11839  
GX20K11836  
GX20K11835  
GX20L64702

Compatible Model Numbers

Lenovo IdeaPad 100s  
Lenovo IdeaPad 110  
Lenovo IdeaPad 710  
Lenovo IdeaPad 510  
Lenovo IdeaPad 510s  
Lenovo IdeaPad 710s  
Lenovo IdeaPad 310  
Lenovo YOGA 710  
Lenovo YOGA 510  
Lenovo YOGA 310  
Lenovo Flex 4 (11 inch)  
Lenovo Flex 4 (14 inch)  
Lenovo Flex 4 (15 inch)  
Lenovo YOGA 510-14  
Lenovo YOGA 310-14  
Lenovo YOGA 710-13  
Lenovo IdeaPad 710s-13ISK-IFI  
Lenovo IdeaPad 710s-13ISK-ISE  
Lenovo IdeaPad 710s-13  
Lenovo IdeaPad 710s-13ISK-ITH  
Lenovo IdeaPad 100S 14  
Lenovo Ideapad 100-14  
Lenovo Ideapad 100-15  
Lenovo B50-10  
Lenovo ideapad 320  
Lenovo ideapad 100  
Lenovo ideapad 110  
Lenovo Yoga 310  
Lenovo Yoga 510  
Lenovo Yoga 520  
Lenovo Yoga 710  
Lenovo MIIX 5  
Lenovo Ideapad Air 12  
Lenovo Ideapad Air 13  
Lenovo ADLX45NDC3A  

Warranty

LENOVO Standard One-year Limited Warranty

Package Contents

Lenovo 45W Laptop Adapter  
Documentation

## Details

- **Price:** 2000.0 INR
- **Vendor:** Lenovo
- **Type:** Laptop Adapter

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 2000.00 INR | In stock |

## Images

- Lenovo Original 45W 20V 3.25A Round Pin AC Adapter Charger with Power Cord
- Lenovo Original 45W 20V 3.25A Round Pin AC Adapter Charger with Power Cord

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> Source: [Suntronix](https://suntronix.net/products/lenovo-original-45w-20v-3-25a-round-pin-ac-wall-adapter)
> Updated: 2026-09-19