Home » Lenovo 42T4427 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)
Lenovo 42T4427 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)
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Lenovo 42T4427 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)
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Lenovo 42T4427 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)

SKU: AC20V90+-+16+Tip-BP-K017
C$25.00
In stock
Orders placed after 3:00 PM (PT) will be processed on the next business day.
🔥 This product has a special offer: Buy 2 eligible items, get 1 item at 50% OFF
Discount applies to the lower-priced item in each pair. Repeats automatically. Not combinable with other offers.

More Compatible Options

→ Shop all Lenovo laptop adapters → Shop all Lenovo laptop batteries
  • Compatible Brands Lenovo
  • Model/OPN 42T4427
  • Output Current 4.5A
  • Output Voltage 20V
  • Input Voltage AC100~240V / 50~60Hz
  • Power 90W
  • Tip Size 8.0*5.5mm
  • Warranty 1 Year
Ships from Canada • Fast local delivery

This replacement laptop adapter for Lenovo 42T4427 is available for C$25.00 — Buy 1, get 1 at 50% off . 20V · 4.5A · 90W · Tip: 8.0*5.5mm.

Important Notes
  • Please make sure the DC output and tip size are compatible before placing the order.
Compatible Model
Lenovo ThinkPad X Series Enhanced ThinkPad X100eLenovo ThinkPad X Series ThinkPad X100e 0022Lenovo ThinkPad X Series ThinkPad X130e 2339Lenovo ThinkPad X Series ThinkPad X131e 3368-3MULenovo ThinkPad X Series ThinkPad X131e 3368-3ZGLenovo ThinkPad X Series ThinkPad X131e 3368-4UULenovo ThinkPad X Series ThinkPad X131e 3372-2CULenovo ThinkPad X Series ThinkPad X131e 3372-2PULenovo ThinkPad X Series ThinkPad X131e 3372-3JULenovo ThinkPad X Series ThinkPad X131e 3372-3QULenovo ThinkPad X Series ThinkPad X201s 5442Lenovo ThinkPad X Series ThinkPad X220 4293Lenovo ThinkPad X Series ThinkPad X220 Tablet 4296-32ULenovo ThinkPad X Series ThinkPad X220 Tablet 4296-33ULenovo ThinkPad X Series ThinkPad X220 Tablet 4298-3ZULenovo ThinkPad X Series ThinkPad X220 Tablet 4299-2RULenovo ThinkPad X Series ThinkPad X220 Tablet 4299-2TULenovo ThinkPad X Series ThinkPad X220i 4286Lenovo ThinkPad X Series ThinkPad X220i 4287Lenovo ThinkPad X Series ThinkPad X220i 4290Lenovo ThinkPad X Series ThinkPad X220t 4297Lenovo ThinkPad X Series ThinkPad X220t 4299-4BULenovo ThinkPad X Series ThinkPad X230 2320-32ULenovo ThinkPad X Series ThinkPad X230 2320-8UULenovo ThinkPad X Series ThinkPad X230 2320-A7ULenovo ThinkPad X Series ThinkPad X230 2320-HPULenovo ThinkPad X Series ThinkPad X230 2320-LSULenovo ThinkPad X Series ThinkPad X230 2324-5SULenovo ThinkPad X Series ThinkPad X230 2324-65ULenovo ThinkPad X Series ThinkPad X230 2324-9CULenovo ThinkPad X Series ThinkPad X230 2324-9UULenovo ThinkPad X Series ThinkPad X230 2325-23ULenovo ThinkPad X Series ThinkPad X230 2325-2NULenovo ThinkPad X Series ThinkPad X230 2325-2PULenovo ThinkPad X Series ThinkPad X230 2325-3QGLenovo ThinkPad X Series ThinkPad X230 2325-5JULenovo ThinkPad X Series ThinkPad X230 2325-5SGLenovo ThinkPad X Series ThinkPad X230 2325-64ULenovo ThinkPad X Series ThinkPad X230 2325-7AGLenovo ThinkPad X Series ThinkPad X230 2325-AFGLenovo ThinkPad X Series ThinkPad X230 Tablet 3437-23GLenovo ThinkPad X Series ThinkPad X230 Tablet 3437-23ULenovo ThinkPad X Series ThinkPad X230 Tablet 3437-2XULenovo ThinkPad X Series ThinkPad X230 Tablet 3437-2YULenovo ThinkPad X Series ThinkPad X230 Tablet 3437-32ULenovo ThinkPad X Series ThinkPad X230 Tablet 3438Lenovo ThinkPad X Series ThinkPad X230 Tablet 3438-24ULenovo ThinkPad X Series ThinkPad X230 Tablet 3438-26GLenovo ThinkPad X Series ThinkPad X230 Tablet 3438-3TULenovo ThinkPad X Series ThinkPad X230i 2320-2DGLenovo ThinkPad X Series ThinkPad X230i 2324-96GLenovo ThinkPad X Series ThinkPad X230i 2325Lenovo ThinkPad Twist Series ThinkPad TwistLenovo ThinkPad Twist Series ThinkPad Twist S230u 20C4-28ULenovo ThinkPad Twist Series ThinkPad Twist S230u 3347Lenovo ThinkPad Twist Series ThinkPad Twist S230u 3347-27GLenovo ThinkPad Twist Series ThinkPad Twist S230u 3347-29GLenovo ThinkPad Twist Series ThinkPad Twist S230u 3347-2GULenovo ThinkPad T Series ThinkPad T410 2519Lenovo ThinkPad T Series ThinkPad T420 4237Lenovo ThinkPad T Series ThinkPad T420si 4175Lenovo ThinkPad T Series ThinkPad T430 2342-32ULenovo ThinkPad T Series ThinkPad T430 2342-49ULenovo ThinkPad T Series ThinkPad T430 2344-BMLenovo ThinkPad T Series ThinkPad T430 2344-FSULenovo ThinkPad T Series ThinkPad T430 2344-GNULenovo ThinkPad T Series ThinkPad T430 2347Lenovo ThinkPad T Series ThinkPad T430 2347-G2ULenovo ThinkPad T Series ThinkPad T430 2347-G4GLenovo ThinkPad T Series ThinkPad T430 2347-H9ULenovo ThinkPad T Series ThinkPad T430 2347-J9ULenovo ThinkPad T Series ThinkPad T430 2347-KUGLenovo ThinkPad T Series ThinkPad T430 2347-KXGLenovo ThinkPad T Series ThinkPad T430 2347-L4ULenovo ThinkPad T Series ThinkPad T430 2349-GRULenovo ThinkPad T Series ThinkPad T430 2349-H3GLenovo ThinkPad T Series ThinkPad T430 2349-JJGLenovo ThinkPad T Series ThinkPad T430 2349-N8GLenovo ThinkPad T Series ThinkPad T430 2349-Q3GLenovo ThinkPad T Series ThinkPad T430i 2344-FEGLenovo ThinkPad T Series ThinkPad T430s 2353-2LULenovo ThinkPad T Series ThinkPad T430s 2353-2NULenovo ThinkPad T Series ThinkPad 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Original Part Number
92P1153 92P1106 92P1159 40Y7696 92P1211 92P1112 93P5026 PA-1650-161 92P1158 41R4493 92P1108 92P1214 92P1111 92P1157 92P1155 92P1156 92P1109 PA-1900-081 92P1104 92P1154 40Y7659 92P1114 92P1107 92P1160 92P1212 PA-1900-17I 92P1110 45N0182 45N0304 45N0080 40Y7662 42T5283 40Y7666 45N0198 45N0324 41R4322 40Y7668 45N0196 42T5282 45N0308 45N0059 40Y7663 45N0302 45N0122 45N0310 45N0192 40Y7672 45N0212 45N0322 42T4423 42T4421 45J7717 45N0180 40Y7673 45N0112 42T5000 42T4416 92P1103 45N0202 PA-1650-53I 45N0306 42T4418 42T4431 40Y7665 42T4429 45N0118 45N0320 40Y7671 42T4425 40Y7674 40Y7661 40Y7669 45N0116 42T4419 42T4417 45N0208 45N0053 40Y7664 45N0316 45N0068 45N0114 45N0210 45N0214 45N0110 45N0314 45N0184 45N0312 42T4439 45N0200 40Y7667 45N0318 42T4427 45N0057 45N0120 40Y7670 45N0186 45N0055 45N0194
How can I confirm a replacement laptop adapter will work with my laptop?
Match the output voltage exactly, then confirm the connector type/size and polarity. Wattage can be the same or higher than your original adapter.
Where do I find the voltage and wattage information?
Check the label on your original charger (or the laptop’s bottom label). Look for Output (V) and Wattage (W). The voltage must match exactly.
Can I use an adapter with a different voltage?
In most cases, no. Using the wrong voltage can cause charging issues or damage your laptop.
Can I use a higher wattage adapter (for example 90W instead of 65W)?
Yes—higher wattage is usually OK as long as the voltage matches and the connector fits. Your laptop will only draw the power it needs.
How do I confirm the connector size is correct?
Compare the tip with your original charger and check the listed connector size (OD × ID). Even small differences (like 5.5×2.1mm vs 5.5×2.5mm) may not fit properly.
What does polarity mean, and why does it matter?
Polarity indicates which part of the plug is positive/negative. It must match your original adapter for safe and reliable charging.
My laptop uses USB-C charging. Can I use any USB-C charger?
Not always. Your laptop may require USB-C Power Delivery (PD) and a minimum wattage (such as 45W/65W/90W). Use a PD charger that meets or exceeds your laptop’s requirement.
Can this adapter be used internationally?
Many adapters support 100–240V input. Check your charger label. If it supports 100–240V, you can use it overseas with the correct plug adapter.
How can I find my laptop model on a Windows laptop?
If you are using a Windows laptop, you can find your laptop model using System Information:

• Step 1: Press Windows + R to open the Run window.
• Step 2: Type msinfo32 and click OK.
• Step 3: In the System Summary section, find System Model in the right pane.

Choosing the correct replacement adapter matters for safety and charging performance. Use this checklist before you place your order:

1. Match the Output Voltage

  • Check your original charger label for Output (for example, 19V).
  • The output voltage should match exactly.

2. Confirm Wattage / Amperage

  • Wattage can be the same or higher than your original adapter.
  • Using higher wattage is usually fine if voltage and connector match.

3. Check Connector Type & Size

  • For barrel tips, match the connector size (OD × ID).
  • For USB-C, ensure it supports USB-C PD and enough wattage for laptops.

4. Verify Polarity

  • Match the polarity symbol shown on your original adapter label.

💡 Battpit tip: Before using any laptop adapter, always check:
• Output voltage (must match exactly)
• Wattage (same or higher is OK)
• Connector size & polarity

All Battpit laptop adapters are designed with advanced built-in safety protection features to ensure reliable and stable charging performance. Our replacement AC adapters help protect your laptop, battery, and internal components during everyday use.

  • Over-voltage protection – Protects your laptop from sudden voltage spikes and unstable power supply.
  • Over-current protection – Prevents excessive current flow to maintain safe and consistent charging.
  • Short-circuit protection – Automatically shuts down the power adapter if a fault is detected.
  • Over-temperature protection – Helps reduce overheating risks for safer long-term use.

Each Battpit replacement laptop charger is engineered to meet high safety and quality standards, providing dependable performance for your notebook computer at home, office, or travel.

Safety & Compliance

Certified Quality You Can Trust

Battpit Canada replacement laptop batteries and AC adapters are selected with safety, compatibility, and compliance in mind. Products may meet common industry standards including RoHS, CE, UL, and ULC where applicable.

RoHS
RoHS Compliant Helps reduce restricted hazardous substances in electronic products.
CE
CE Marked Designed to meet applicable safety and quality requirements.
UL
UL Recognized Components Selected products may use UL recognized cells, components, or protection circuits.
ULC
ULC Safety Standard Supports safety confidence for products supplied to Canadian customers.
Why this matters: These compliance marks help customers choose a reliable replacement laptop battery, laptop charger, or AC adapter with built-in safety features such as over-charge, over-current, over-voltage, and short-circuit protection.