Home » Lenovo 42T4423 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)
Lenovo 42T4423 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)
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Lenovo 42T4423 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)
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Lenovo 42T4423 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)

SKU: AC20V90+-+16+Tip-BP-K016
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 42T4423
  • 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 42T4423 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 ThinkPad X100e 3508Lenovo ThinkPad X Series ThinkPad X131eLenovo ThinkPad X Series ThinkPad X131e 3367-8EULenovo ThinkPad X Series ThinkPad X131e 3367-9DULenovo ThinkPad X Series ThinkPad X131e 3368-3YGLenovo ThinkPad X Series ThinkPad X131e 3368-55ULenovo ThinkPad X Series ThinkPad X131e 3371-2RULenovo ThinkPad X Series ThinkPad X131e 3371-7JULenovo ThinkPad X Series ThinkPad X131e 3371-7PULenovo ThinkPad X Series ThinkPad X131e 3371-8AULenovo ThinkPad X Series ThinkPad X131e 3371-8BULenovo ThinkPad X Series ThinkPad X131e 3372-2UULenovo ThinkPad X Series ThinkPad X131e 3372-2WULenovo ThinkPad X Series ThinkPad X140e 20BL000GUSLenovo ThinkPad X Series ThinkPad X201i 3680Lenovo ThinkPad X Series ThinkPad X220 4291Lenovo ThinkPad X Series ThinkPad X220 4293Lenovo ThinkPad X Series ThinkPad X220 Tablet 4296-32ULenovo ThinkPad X Series ThinkPad X220 Tablet 4298-3YULenovo ThinkPad X Series ThinkPad X220 Tablet 4299-2RULenovo ThinkPad X Series ThinkPad X220 Tablet 4299-34ULenovo ThinkPad X Series ThinkPad X220i SeriesLenovo ThinkPad X Series ThinkPad X220i TabletLenovo ThinkPad X Series ThinkPad X230Lenovo ThinkPad X Series ThinkPad X230 2306Lenovo ThinkPad X Series ThinkPad X230 2320-A7ULenovo ThinkPad X Series ThinkPad X230 2320-HMULenovo ThinkPad X Series ThinkPad X230 2324-25ULenovo ThinkPad X Series ThinkPad X230 2324-3MULenovo ThinkPad X Series ThinkPad X230 2324-3QULenovo ThinkPad X Series ThinkPad X230 2324-3WGLenovo ThinkPad X Series ThinkPad X230 2324-3XULenovo ThinkPad X Series ThinkPad X230 2324-5QGLenovo ThinkPad X Series ThinkPad X230 2324-64GLenovo ThinkPad X Series ThinkPad X230 2324-85ULenovo ThinkPad X Series ThinkPad X230 2324-9CULenovo ThinkPad X Series ThinkPad X230 2324-9YULenovo ThinkPad X Series ThinkPad X230 2325-23GLenovo ThinkPad X Series ThinkPad X230 2325-2RULenovo ThinkPad X Series ThinkPad X230 2325-2SULenovo ThinkPad X Series ThinkPad X230 2325-5RGLenovo ThinkPad X Series ThinkPad X230 2325-66GLenovo ThinkPad X Series ThinkPad X230 2325-66ULenovo ThinkPad X Series ThinkPad X230 2325-6DGLenovo ThinkPad X Series ThinkPad X230 2325-6EGLenovo ThinkPad X Series ThinkPad X230 2325-86ULenovo ThinkPad X Series ThinkPad X230 2325-87ULenovo ThinkPad X Series ThinkPad X230 2325-ALGLenovo ThinkPad X Series ThinkPad X230 2325-B5GLenovo ThinkPad X Series ThinkPad X230 2333Lenovo ThinkPad X Series ThinkPad X230 Tablet 3437-22GLenovo ThinkPad X Series ThinkPad X230 Tablet 3438-22GLenovo ThinkPad X Series ThinkPad X230 Tablet 3438-2AGLenovo ThinkPad X Series ThinkPad X230 Tablet 3438-2BGLenovo ThinkPad X Series ThinkPad X230i 2306Lenovo ThinkPad Twist Series ThinkPad Twist S230u 3347-77ULenovo ThinkPad Twist Series ThinkPad Twist S230u 3347-84ULenovo ThinkPad T Series ThinkPad T410 2519Lenovo ThinkPad T Series ThinkPad T410i 2518Lenovo ThinkPad T Series ThinkPad T410i 2522Lenovo ThinkPad T Series ThinkPad T420 4179Lenovo ThinkPad T Series ThinkPad T420 4238Lenovo ThinkPad T Series ThinkPad T430 2344-4SGLenovo ThinkPad T Series ThinkPad T430 2344-5GULenovo ThinkPad T Series ThinkPad T430 2344-6SULenovo ThinkPad T Series ThinkPad T430 2344-GPULenovo ThinkPad T Series ThinkPad T430 2347-G3GLenovo ThinkPad T Series ThinkPad T430 2347-G4ULenovo ThinkPad T Series ThinkPad T430 2347-G8GLenovo ThinkPad T Series ThinkPad T430 2347-H9ULenovo ThinkPad T Series ThinkPad T430 2347-K9ULenovo ThinkPad T Series ThinkPad T430 2347-L4ULenovo ThinkPad T Series ThinkPad T430 2349Lenovo ThinkPad T Series ThinkPad T430 2349-JNGLenovo ThinkPad T Series ThinkPad T430 2349-LUULenovo ThinkPad T Series ThinkPad T430s 2353-6CULenovo ThinkPad T Series ThinkPad T430s 2353-6EULenovo ThinkPad T Series ThinkPad T430s 2353-6GULenovo ThinkPad T Series ThinkPad T430s 2355Lenovo ThinkPad T Series ThinkPad T430s 2355-G3ULenovo ThinkPad T Series ThinkPad T430s 2355-HDULenovo ThinkPad T Series ThinkPad T430s 2356-G3GLenovo ThinkPad T Series ThinkPad T430s 2356-H9GLenovo ThinkPad T Series ThinkPad T430s 2356-LCULenovo ThinkPad T Series ThinkPad T430s 2356-LDGLenovo ThinkPad T Series ThinkPad T430s 2356-LRGLenovo ThinkPad T Series ThinkPad T430s 2356-N4GLenovo ThinkPad T Series ThinkPad T430u 3351-99ULenovo ThinkPad T Series ThinkPad T430u 33519NCLenovo ThinkPad T Series ThinkPad T430u 3351A67Lenovo ThinkPad T Series ThinkPad T430u 3352-3SULenovo ThinkPad T Series ThinkPad T430u 3353-3NGLenovo ThinkPad T Series ThinkPad T430u 3353-3QGLenovo ThinkPad T Series ThinkPad T430u 3353-3SGLenovo ThinkPad T Series ThinkPad T430u 6273-23GLenovo ThinkPad T Series ThinkPad T430u 6273-23ULenovo ThinkPad T Series ThinkPad T430u 6273-2SGLenovo ThinkPad T Series ThinkPad T430u 86149FCLenovo ThinkPad T Series ThinkPad T510 4314Lenovo ThinkPad T Series ThinkPad T530 2392-4AULenovo ThinkPad T Series ThinkPad T530 2392-6BULenovo ThinkPad T Series ThinkPad T530 2392-6GULenovo ThinkPad T Series ThinkPad T530 2394-5UGLenovo ThinkPad T Series ThinkPad T530 2394-5VULenovo ThinkPad T Series ThinkPad T530 2394-62ULenovo ThinkPad T Series 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Series ThinkPad Edge E545 20B2000SUSLenovo ThinkPad Edge Series ThinkPad Edge E545 20B2000UUSLenovo ThinkPad Edge Series ThinkPad Edge E545 20B20019USLenovo ThinkPad Edge Series ThinkPad Edge S430 3364-56GLenovo ThinkPad Edge Series ThinkPad Edge S430 3364-5JGLenovo IdeaPad Series Ideapad U31-70 M500E4USLenovo Essential B Series Essential B590 3761Lenovo Essential B Series Essential B590 6274-2BGLenovo B Series - Lenovo B580 RafaelLenovo 3000 C Series 3000 C100 0761-24ULenovo 3000 C Series 3000 C200 8922-03ULenovo 3000 C Series 3000 C200 8922-2BULenovo 3000 C Series 3000 C200 8922-2FULenovo 3000 C Series 3000 C200 Series
Original Part Number
41R4493 92P1104 92P1106 92P1110 92P1155 PA-1650-161 92P1211 PA-1900-17I 92P1109 92P1112 92P1108 92P1158 93P5026 92P1156 40Y7696 92P1114 92P1160 40Y7659 92P1159 92P1157 92P1107 92P1214 92P1154 92P1153 92P1212 92P1111 PA-1900-081 40Y7666 45N0192 42T5282 40Y7671 45N0194 45N0322 45N0118 42T4423 40Y7673 41R4322 45N0182 45N0080 45N0310 92P1103 40Y7668 45N0304 42T4419 45N0202 45N0057 45N0324 45N0320 42T4418 45N0314 45N0122 45N0184 45N0196 45N0110 42T4427 45N0318 40Y7664 45N0068 40Y7661 45N0200 45N0120 42T4421 45N0312 45N0210 42T4416 42T4431 45N0112 42T4429 42T4425 40Y7662 45N0316 45N0198 45N0306 45N0053 45N0208 40Y7665 40Y7672 40Y7663 40Y7669 45N0186 PA-1650-53I 40Y7674 45N0212 45N0308 45N0114 42T5283 42T4439 45N0055 42T4417 45N0059 40Y7667 45N0214 45N0116 45J7717 45N0180 40Y7670 45N0302 42T5000
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.