Home » Lenovo 42T4421 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)
Lenovo 42T4421 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)
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Lenovo 42T4421 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)
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Lenovo 42T4421 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)

SKU: AC20V90+-+16+Tip-BP-K015
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 42T4421
  • 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 42T4421 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 2876Lenovo ThinkPad X Series ThinkPad X121e SeriesLenovo ThinkPad X Series ThinkPad X130e 3368Lenovo ThinkPad X Series ThinkPad X131e 3368-44ULenovo ThinkPad X Series ThinkPad X131e 3368-4FULenovo ThinkPad X Series ThinkPad X131e 3371-8DULenovo ThinkPad X Series ThinkPad X131e 3371-8EULenovo ThinkPad X Series ThinkPad X140e 20BL0005USLenovo ThinkPad X Series ThinkPad X140e 20BL000EUSLenovo ThinkPad X Series ThinkPad X140e 20BM000CUSLenovo ThinkPad X Series ThinkPad X200si 7466Lenovo ThinkPad X Series ThinkPad X201s 5142Lenovo ThinkPad X Series ThinkPad X220 Tablet 4296-32ULenovo ThinkPad X Series ThinkPad X220 Tablet 4298Lenovo 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 X220s SeriesLenovo ThinkPad X Series ThinkPad X220t 4294Lenovo ThinkPad X Series ThinkPad X220t 4296Lenovo ThinkPad X Series ThinkPad X230 2320-2ZULenovo ThinkPad X Series ThinkPad X230 2320-33ULenovo ThinkPad X Series ThinkPad X230 2320-35ULenovo ThinkPad X Series ThinkPad X230 2320-8UULenovo ThinkPad X Series ThinkPad X230 2320-A6ULenovo ThinkPad X Series ThinkPad X230 2320-HPULenovo ThinkPad X Series ThinkPad X230 2320-KHULenovo ThinkPad X Series ThinkPad X230 2320-L9ULenovo ThinkPad X Series ThinkPad X230 2320-LSULenovo ThinkPad X Series ThinkPad X230 2324-23GLenovo ThinkPad X Series ThinkPad X230 2324-9CULenovo ThinkPad X Series ThinkPad X230 2324-9UULenovo ThinkPad X Series ThinkPad X230 2325-22ULenovo ThinkPad X Series ThinkPad X230 2325-2PULenovo ThinkPad X Series ThinkPad X230 2325-3QGLenovo ThinkPad X Series ThinkPad X230 2325-5PGLenovo ThinkPad X Series ThinkPad X230 2325-5PULenovo ThinkPad X Series ThinkPad X230 2325-5RULenovo ThinkPad X Series ThinkPad X230 2325-77GLenovo ThinkPad X Series ThinkPad X230 2325-B7GLenovo ThinkPad X Series ThinkPad X230 2325-BKULenovo ThinkPad X Series ThinkPad X230 Tablet 3435Lenovo ThinkPad X Series ThinkPad X230 Tablet 3435-2RULenovo ThinkPad X Series ThinkPad X230 Tablet 3437-2RULenovo ThinkPad X Series ThinkPad X230 Tablet 3437-2XULenovo ThinkPad X Series ThinkPad X230 Tablet 3437-3LULenovo ThinkPad X Series ThinkPad X230 Tablet 3438-25GLenovo ThinkPad X Series ThinkPad X230 Tablet 3438-2RULenovo ThinkPad X Series ThinkPad X230i 2320-2DGLenovo ThinkPad Twist Series ThinkPad Twist 3347A44Lenovo ThinkPad Twist Series ThinkPad Twist S230u 3347-2HULenovo ThinkPad Twist Series ThinkPad Twist S230u 3347-2RULenovo ThinkPad Twist Series ThinkPad Twist S230u 3347-4NGLenovo ThinkPad Twist Series ThinkPad Twist S230u 3347-78ULenovo ThinkPad T Series ThinkPad T430 2342-7NULenovo ThinkPad T Series ThinkPad T430 2342-7YULenovo ThinkPad T Series ThinkPad T430 2344-5LULenovo ThinkPad T Series ThinkPad T430 2344-BNULenovo ThinkPad T Series ThinkPad T430 2344-BTGLenovo ThinkPad T Series ThinkPad T430 2344-FSULenovo ThinkPad T Series ThinkPad T430 2347-G5ULenovo ThinkPad T Series ThinkPad T430 2349-G2GLenovo ThinkPad T Series ThinkPad T430 2349-GAGLenovo ThinkPad T Series ThinkPad T430 2349-HFGLenovo ThinkPad T Series ThinkPad T430 2349-HNGLenovo ThinkPad T Series ThinkPad T430 2349-JFGLenovo ThinkPad T Series ThinkPad T430 2349-JMULenovo ThinkPad T Series ThinkPad T430 2349-KAGLenovo ThinkPad T Series ThinkPad T430s 2353-68ULenovo ThinkPad T Series ThinkPad T430s 2353-6GULenovo ThinkPad T Series ThinkPad T430s 2355-HDGLenovo ThinkPad T Series ThinkPad T430s 2355-HGULenovo ThinkPad T Series ThinkPad T430s 2355-HJGLenovo ThinkPad T Series ThinkPad T430s 2355-HKGLenovo ThinkPad T Series ThinkPad T430s 2355-K6GLenovo ThinkPad T Series ThinkPad T430s 2355-K7GLenovo ThinkPad T Series ThinkPad T430s 2356-G2ULenovo ThinkPad T Series ThinkPad T430s 2356-GRULenovo ThinkPad T Series ThinkPad T430s 2356-H9ULenovo ThinkPad T Series ThinkPad T430s 2356-HBULenovo ThinkPad T Series ThinkPad T430s 2356-HCGLenovo ThinkPad T Series ThinkPad T430s 2356-L2GLenovo ThinkPad T Series ThinkPad T430s 2356-LAULenovo ThinkPad T Series ThinkPad T430si 2353Lenovo ThinkPad T Series ThinkPad T430uLenovo ThinkPad T Series ThinkPad T430u 335172CLenovo ThinkPad T Series ThinkPad T430u 3352Lenovo ThinkPad T Series ThinkPad T430u 3352-3JGLenovo ThinkPad T Series ThinkPad T430u 3353-37GLenovo ThinkPad T Series ThinkPad T430u 3353-3NGLenovo ThinkPad T Series ThinkPad T430u 6273-26ULenovo ThinkPad T Series ThinkPad T430u 6273-2SULenovo ThinkPad T Series ThinkPad T430u 8614-BDGLenovo ThinkPad T Series ThinkPad T510 4349Lenovo ThinkPad T Series ThinkPad T510 4384Lenovo ThinkPad T Series ThinkPad T510 8787Lenovo ThinkPad T Series ThinkPad T510i 4339Lenovo ThinkPad T Series ThinkPad T510i 4384Lenovo ThinkPad T Series ThinkPad T520 4241Lenovo ThinkPad T Series ThinkPad T530 2359-4DULenovo ThinkPad T Series ThinkPad T530 2359-5JULenovo ThinkPad T Series ThinkPad T530 2392-4EULenovo ThinkPad T Series ThinkPad T530 2392-68ULenovo ThinkPad T Series ThinkPad T530 2392-6GULenovo ThinkPad T Series ThinkPad T530 2392-AUGLenovo ThinkPad T Series ThinkPad T530 2392-FJULenovo ThinkPad T Series ThinkPad T530 2393Lenovo ThinkPad T Series ThinkPad T530 2394-22GLenovo ThinkPad T Series ThinkPad T530 2394-2SULenovo ThinkPad T Series ThinkPad T530 2394-41GLenovo ThinkPad T Series ThinkPad T530 2394-42GLenovo ThinkPad T Series ThinkPad T530 2394-42ULenovo ThinkPad T Series ThinkPad T530 2394-5TGLenovo ThinkPad T Series ThinkPad T530 2394-5VULenovo ThinkPad T Series ThinkPad T530 2394-5ZGLenovo ThinkPad T Series ThinkPad T530 2394-63GLenovo ThinkPad T Series ThinkPad T530 2394-6DULenovo ThinkPad T Series ThinkPad T530 2429-41ULenovo ThinkPad T Series ThinkPad T530 2429-5ZGLenovo ThinkPad T Series ThinkPad T530 2429-6LGLenovo ThinkPad T Series ThinkPad T530 2429-7CULenovo ThinkPad T Series ThinkPad T530 2429-7DULenovo ThinkPad T Series ThinkPad T530 2429-7FULenovo ThinkPad T Series ThinkPad T530 2429-7TGLenovo ThinkPad T Series ThinkPad T530i 2392Lenovo ThinkPad T Series ThinkPad T530i 2392-39GLenovo ThinkPad S Series ThinkPad S230u Twist 33473GCLenovo ThinkPad S Series ThinkPad S230u Twist 33473QCLenovo ThinkPad S Series ThinkPad S230u Twist 33475PMLenovo ThinkPad L Series ThinkPad L430 2465-28ULenovo ThinkPad L Series ThinkPad L430 2465-29GLenovo ThinkPad L Series ThinkPad L430 2465-2EULenovo ThinkPad L Series ThinkPad L430 2465-5TGLenovo ThinkPad L Series ThinkPad L430 2466-33ULenovo ThinkPad L Series ThinkPad L430 2466-39ULenovo ThinkPad L Series ThinkPad L430 2466-3DULenovo ThinkPad L Series ThinkPad L430 2466-3EULenovo ThinkPad L Series ThinkPad L430 2468-2AULenovo ThinkPad L Series ThinkPad L430 2468-36GLenovo ThinkPad L Series ThinkPad L430 2468-68GLenovo ThinkPad L Series ThinkPad L430 2468-6HGLenovo ThinkPad L Series ThinkPad L430 2468-6LGLenovo ThinkPad L Series ThinkPad L430 2469-28ULenovo ThinkPad L Series ThinkPad L430 2469-2TULenovo ThinkPad L Series ThinkPad L430 2469-2ZULenovo ThinkPad L Series ThinkPad L530 2478-5FGLenovo ThinkPad L Series ThinkPad L530 2479-44ULenovo ThinkPad L Series ThinkPad L530 2481-2RGLenovo ThinkPad L Series ThinkPad L530 2481-3LGLenovo ThinkPad L Series ThinkPad L530 2481-3SGLenovo ThinkPad L Series ThinkPad L530 2481-4ZGLenovo ThinkPad L Series ThinkPad L530 2481-55ULenovo ThinkPad Edge Series ThinkPad Edge 13 0197Lenovo ThinkPad Edge Series ThinkPad Edge E130 3358-7CGLenovo ThinkPad Edge Series ThinkPad Edge E130 3358-8RGLenovo ThinkPad Edge Series ThinkPad Edge E130 3358-AZGLenovo ThinkPad Edge Series ThinkPad Edge E130 3358-B8GLenovo ThinkPad Edge Series ThinkPad Edge E135 3359-64GLenovo ThinkPad Edge Series ThinkPad Edge E135 3359-7FGLenovo ThinkPad Edge Series ThinkPad Edge E145 20BC000ULenovo ThinkPad Edge Series ThinkPad Edge E320Lenovo ThinkPad Edge Series ThinkPad Edge E330 3354-4PGLenovo ThinkPad Edge Series ThinkPad Edge E330 3354-AUGLenovo ThinkPad Edge Series ThinkPad Edge E330 3354-BMGLenovo ThinkPad Edge Series ThinkPad Edge E330 3354-E9GLenovo ThinkPad Edge Series ThinkPad Edge E335 3355-67GLenovo ThinkPad Edge Series ThinkPad Edge E335 3355-68GLenovo ThinkPad Edge Series ThinkPad Edge E435 SeriesLenovo ThinkPad Edge Series ThinkPad Edge E530 3259-9WGLenovo ThinkPad Edge Series ThinkPad Edge E530 3259-HKGLenovo ThinkPad Edge Series ThinkPad Edge E530 3259-HMGLenovo ThinkPad Edge Series ThinkPad Edge E530 3259-MDGLenovo ThinkPad Edge Series ThinkPad Edge E530 3259-MFGLenovo ThinkPad Edge Series ThinkPad Edge E530 6272-3NGLenovo ThinkPad Edge Series ThinkPad Edge E530 6272-49GLenovo ThinkPad Edge Series ThinkPad Edge E530 6272-63GLenovo ThinkPad Edge Series ThinkPad Edge E530 6272-6KGLenovo ThinkPad Edge Series ThinkPad Edge E530c 3366-33ULenovo ThinkPad Edge Series ThinkPad Edge E530c 3366-53GLenovo ThinkPad Edge Series ThinkPad Edge E530c 3366-6CGLenovo ThinkPad Edge Series ThinkPad Edge E535 3260-5AGLenovo ThinkPad Edge Series ThinkPad Edge E535 3260-5BGLenovo ThinkPad Edge Series ThinkPad Edge E535 3260-5VULenovo ThinkPad Edge Series ThinkPad Edge E535 3260-DSGLenovo ThinkPad Edge Series ThinkPad Edge E535 3260-DWGLenovo ThinkPad Edge Series ThinkPad Edge E535 3260-DXULenovo ThinkPad Edge Series ThinkPad Edge E535 3260-ECULenovo ThinkPad Edge Series ThinkPad Edge E535 3260-ELGLenovo ThinkPad Edge Series ThinkPad Edge E535 3260-ESGLenovo ThinkPad Edge Series ThinkPad Edge E535 3260-FLGLenovo ThinkPad Edge Series ThinkPad Edge E545 20B2000KUSLenovo ThinkPad Edge Series ThinkPad Edge E545 20B2000PLenovo ThinkPad Edge Series ThinkPad Edge E545 20B20010Lenovo IdeaPad Series Ideapad U31-70 M5007DUSLenovo IdeaPad Series Ideapad U31-70 M5007GUSLenovo IdeaPad Series Ideapad U31-70 M500E4USLenovo Essential B Series Essential B590 6274-2GGLenovo B Series - Lenovo B480G-ITHLenovo 3000 V Series 3000 V100 SeriesLenovo 3000 N Series 3000 N200 Series
Original Part Number
92P1104 92P1160 PA-1900-17I 92P1112 92P1110 92P1153 92P1155 92P1108 92P1106 92P1154 92P1212 92P1211 41R4493 PA-1900-081 92P1157 92P1159 92P1109 92P1158 40Y7659 93P5026 40Y7696 92P1114 92P1156 92P1111 92P1107 PA-1650-161 92P1214 42T4423 45N0182 45N0120 45N0322 42T5282 41R4322 40Y7671 40Y7665 42T4419 42T4416 45N0110 45N0059 42T4427 45N0314 42T4417 45N0180 45N0312 40Y7670 40Y7674 45N0055 45N0080 42T4425 45N0308 45N0310 45N0214 40Y7667 92P1103 40Y7672 45N0184 40Y7666 45N0304 40Y7662 45N0302 45N0122 45N0324 40Y7661 45N0212 PA-1650-53I 40Y7669 42T4439 42T4421 40Y7663 42T4418 45N0116 45N0318 45N0192 45N0320 42T5000 45N0198 45N0196 45N0316 45N0186 45N0200 45N0118 45J7717 45N0194 45N0306 42T4431 45N0053 45N0114 40Y7668 45N0210 45N0208 40Y7664 45N0202 45N0112 42T4429 40Y7673 42T5283 45N0057 45N0068
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.