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Shenzhen Gasage Technology Co.,Ltd

Contact Person:

Traino Lee- Sales Manager





20V 4.5A 90W OEM Competitive Laptop Battery AC Adapter with Square Tip for Lenovo

Replacement laptop battery AC adapter, AC 100~240V 2.0A (50~60Hz) and DC 20V 4.5A laptop adapter for Lenovo Yoga 11, with connector size 11*4.5mm Square, 2 pin/3 pin AC cable to link, fit to charge notebook battery and compatible for Lenovo Notebook and brand laptops

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Product Details

20V 4.5A 90W oem competitive Laptop battery AC adapter with square tip for lenovo  

Product Description:

OEM portable 90W replacement Laptop AC Adapter power supply for Lenovo laptop with USB tips, black color, ac laptop power adapter charger featured with over-voltage protection and over current protection, fit to charge notebook battery and compatible for Lenovo Notebook and brand laptops with Ac power cord adapter


- Double chipset innovation provides constant true voltage automatically with low consumption.

- Built with input/output overvoltage protection, input/output overcurrent protection, over temperature

  protection, over power protection and short circuit protection


Product   name

Laptop   AC adapter




AC   100~240V 2.0A (50~60Hz)


20V   4.5A

Tip   Size

11*4.5mm   Square

Fit   for Brand

For   Lenovo



Net   Weight


Length   of output power cord



Regular   Paper box+Bubble bag/ Customized accepted






Method of utilization for Laptop AC adapter :

- Confirm the model of your notebook computer. 

- Check the input voltage as shown on the bottom panel of your notebook computer or contact the manufacturer of your notebook

  computer for respective information.

- Connect the adapter to any power socket with the AC power Cord.

- The Power LED will go on.

- Connect the DC power cord into your notebook computer.Notebook computer will then be powered.

Caution of Laptop AC adapter :

- In door use only.

- Don’t disassemble it.

- Keep it away from high temperature or high moist environment.

- It’s a common phenomenon for the unit to feel hot when using.

- Please don’t fall down or bump it,avoid damaging the electronic component.

- Before using it,please read carefully your laptop user manual,ensure the technical data set compatible with your laptop.

- We are responsible for any damage caused uncorrected operation.

Company Information:

Gasage Technology Co., Ltd is a high-tech enterprise specialized in providing power solutions. Established in 2005.

We aggregate R&D, Design, Factory production and Branding, we are expert in manufacturing and marketing Power Strip, Laptop Adapter, USB Charger, Power Bank, Wireless Charger and OEM ODM power solutions.

Our enterprise culture is “Make Better”.

We always focus on providing better products and better service to our customers.

Our products obtained CE, CB, RoHS, GS, FCC certificates of TUV Rhineland.

Our Services 

1.Quick delivery: High production capacity, monthly output 100,000~150,000pcs.

2.Quality Assurance: All products have been 100% tested before shipment. Serious aging test for a few hours before packing to make sure reliable quality

3.Wide range of models: All well-known brands and models for you to choose.

4.Very competitive prices: Our own factory production, wholesale price to help you win the market

5.High quality: Short circuit/Over voltage/Over current, High working efficiency, 100% full load.

6.Warranty: 12 months within the warranty period, free replacement or refund.

7.Professional packaging: Paper box, bubble bag. To avoid any damage to the products.

8.Professional service team: Provide you with satisfactory service.