Home » Lenovo 42T4439 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)
Lenovo 42T4439 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)
Product image 2
Product image 3
Product image 4
Lenovo 42T4439 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)
Product image 2
Product image 3
Product image 4

Lenovo 42T4439 Compatible Laptop Adapter 20V 4.5A 90W (Fixed 16-Tip)

SKU: AC20V90+-+16+Tip-BP-K020
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 42T4439
  • 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 42T4439 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 X130e 0627Lenovo ThinkPad X Series ThinkPad X130e 2338Lenovo ThinkPad X Series ThinkPad X131e 3367Lenovo ThinkPad X Series ThinkPad X131e 3367-99ULenovo ThinkPad X Series ThinkPad X131e 3367-9BULenovo ThinkPad X Series ThinkPad X131e 3368-3XGLenovo ThinkPad X Series ThinkPad X131e 3368-42GLenovo ThinkPad X Series ThinkPad X131e 3371-2MULenovo ThinkPad X Series ThinkPad X131e 3371-7KULenovo ThinkPad X Series ThinkPad X131e 3371-7QULenovo ThinkPad X Series ThinkPad X131e 3372-2GULenovo ThinkPad X Series ThinkPad X140eLenovo ThinkPad X Series ThinkPad X140e 20BM000CUSLenovo ThinkPad X Series ThinkPad X201s 5413Lenovo ThinkPad X Series ThinkPad X220 Tablet 4296-2WULenovo ThinkPad X Series ThinkPad X220 Tablet 4298Lenovo ThinkPad X Series ThinkPad X220i 4286Lenovo ThinkPad X Series ThinkPad X230 2320Lenovo ThinkPad X Series ThinkPad X230 2320-33ULenovo ThinkPad X Series ThinkPad X230 2320-3BULenovo ThinkPad X Series ThinkPad X230 2320-8TULenovo ThinkPad X Series ThinkPad X230 2320-A7ULenovo ThinkPad X Series ThinkPad X230 2320-A9ULenovo ThinkPad X Series ThinkPad X230 2320-HQULenovo ThinkPad X Series ThinkPad X230 2320-LVULenovo ThinkPad X Series ThinkPad X230 2324-3TULenovo ThinkPad X Series ThinkPad X230 2324-85ULenovo ThinkPad X Series ThinkPad X230 2325-2GGLenovo ThinkPad X Series ThinkPad X230 2325-2UGLenovo ThinkPad X Series ThinkPad X230 2325-5SULenovo ThinkPad X Series ThinkPad X230 2325-67ULenovo ThinkPad X Series ThinkPad X230 2325-6EGLenovo ThinkPad X Series ThinkPad X230 2325-86ULenovo ThinkPad X Series ThinkPad X230 2325-88ULenovo ThinkPad X Series ThinkPad X230 2325-AFGLenovo ThinkPad X Series ThinkPad X230 2325-B7GLenovo ThinkPad X Series ThinkPad X230 2325-BCGLenovo ThinkPad X Series ThinkPad X230 2333Lenovo ThinkPad X Series ThinkPad X230 Tablet 3435-2HULenovo ThinkPad X Series ThinkPad X230 Tablet 3435-2SULenovo ThinkPad X Series ThinkPad X230 Tablet 3435-2XULenovo ThinkPad X Series ThinkPad X230 Tablet 3437-2ZGLenovo ThinkPad X Series ThinkPad X230 Tablet 3438-25ULenovo ThinkPad X Series ThinkPad X230 Tablet 3438-2AGLenovo ThinkPad X Series ThinkPad X230 Tablet 3438-3SGLenovo ThinkPad X Series ThinkPad X230i 2320Lenovo ThinkPad X Series ThinkPad X230i 2324Lenovo ThinkPad X Series ThinkPad X230i 2324-7PGLenovo ThinkPad Twist Series ThinkPad Twist S230u 3347-2NULenovo ThinkPad Twist Series ThinkPad Twist S230u 3347-6UULenovo ThinkPad Twist Series ThinkPad Twist S230u 3347-7DULenovo ThinkPad T Series ThinkPad T420 4237Lenovo ThinkPad T Series ThinkPad T420iLenovo ThinkPad T Series ThinkPad T420s 4174 PPULenovo ThinkPad T Series ThinkPad T430 2342-49ULenovo ThinkPad T Series ThinkPad T430 2342-4BULenovo ThinkPad T Series ThinkPad T430 2344-4SGLenovo ThinkPad T Series ThinkPad T430 2344-4TGLenovo ThinkPad T Series ThinkPad T430 2344-5DULenovo ThinkPad T Series ThinkPad T430 2344-5HULenovo ThinkPad T Series ThinkPad T430 2344-5MULenovo ThinkPad T Series ThinkPad T430 2344-6UULenovo ThinkPad T Series ThinkPad T430 2344-GNULenovo ThinkPad T Series ThinkPad T430 2347Lenovo ThinkPad T Series ThinkPad T430 2347-G7ULenovo ThinkPad T Series ThinkPad T430 2347-G8GLenovo ThinkPad T Series ThinkPad T430 2347-J8ULenovo ThinkPad T Series ThinkPad T430 2349Lenovo ThinkPad T Series ThinkPad T430 2349-GAGLenovo ThinkPad T Series ThinkPad T430 2349-GCGLenovo ThinkPad T Series ThinkPad T430 2349-JJGLenovo ThinkPad T Series ThinkPad T430 2349-KCGLenovo ThinkPad T Series ThinkPad T430 2349-LPGLenovo ThinkPad T Series ThinkPad T430 2349-PHGLenovo ThinkPad T Series ThinkPad T430 2349-Q2GLenovo ThinkPad T Series ThinkPad T430i 2344-BDGLenovo ThinkPad T Series ThinkPad T430i 2344-FHGLenovo ThinkPad T Series ThinkPad T430s 2353Lenovo ThinkPad T Series ThinkPad T430s 2353-2LULenovo ThinkPad T Series ThinkPad T430s 2353-68ULenovo ThinkPad T Series ThinkPad T430s 2353-9KULenovo ThinkPad T Series ThinkPad T430s 2353-B7ULenovo ThinkPad T Series ThinkPad T430s 2355-HEULenovo ThinkPad T Series ThinkPad T430s 2355-HFULenovo ThinkPad T Series ThinkPad T430s 2355-HGGLenovo ThinkPad T Series ThinkPad T430s 2356-G3ULenovo ThinkPad T Series ThinkPad T430s 2356-GJGLenovo ThinkPad T Series ThinkPad T430s 2356-H8ULenovo ThinkPad T Series ThinkPad T430s 2356-HAULenovo ThinkPad T Series ThinkPad T430s 2356-N7GLenovo ThinkPad T Series ThinkPad T430s 2357Lenovo ThinkPad T Series ThinkPad T430u 33512ACLenovo ThinkPad T Series ThinkPad T430u 33515XCLenovo ThinkPad T Series ThinkPad T430u 3351A32Lenovo ThinkPad T Series ThinkPad T430u 3351A52Lenovo ThinkPad T Series ThinkPad T430u 3352-4ZULenovo ThinkPad T Series ThinkPad T430u 3353-3GGLenovo ThinkPad T Series ThinkPad T430u 8614-APULenovo ThinkPad T Series ThinkPad T510 5584Lenovo ThinkPad T Series ThinkPad T510i 4313Lenovo ThinkPad T Series ThinkPad T520 4239Lenovo ThinkPad T Series ThinkPad T520 4241Lenovo ThinkPad T Series ThinkPad T520 4246Lenovo ThinkPad T Series ThinkPad T530 2392-67ULenovo ThinkPad T Series ThinkPad T530 2392-6EULenovo ThinkPad T Series ThinkPad T530 2392-6HULenovo ThinkPad T Series ThinkPad T530 2392-FPULenovo ThinkPad T Series ThinkPad T530 2392-FSULenovo ThinkPad T Series ThinkPad T530 2394-36ULenovo ThinkPad T Series ThinkPad T530 2394-42GLenovo ThinkPad T Series ThinkPad T530 2394-44ULenovo ThinkPad T Series ThinkPad T530 2394-5RGLenovo ThinkPad T Series ThinkPad T530 2394-5VGLenovo ThinkPad T Series ThinkPad T530 2394-5XULenovo ThinkPad T Series ThinkPad T530 2394-7DGLenovo ThinkPad T Series ThinkPad T530 2429-23GLenovo ThinkPad T Series ThinkPad T530 2429-2UGLenovo ThinkPad T Series ThinkPad T530 2429-44GLenovo ThinkPad T Series ThinkPad T530 2429-5WGLenovo ThinkPad T Series ThinkPad T530 2429-61GLenovo ThinkPad T Series ThinkPad T530 2429-63ULenovo ThinkPad T Series ThinkPad T530 2429-6CGLenovo ThinkPad T Series ThinkPad T530 2429-7CULenovo ThinkPad T Series ThinkPad T530 2429-8AGLenovo ThinkPad T Series ThinkPad T530 2429-8GGLenovo ThinkPad T Series ThinkPad T530i 2392-E6GLenovo ThinkPad T Series ThinkPad T530i 2392-ENGLenovo ThinkPad S Series ThinkPad S230u Twist 33472L0Lenovo ThinkPad S Series ThinkPad S230u Twist 33473TCLenovo ThinkPad L Series ThinkPad L412Lenovo ThinkPad L Series ThinkPad L430 2465-2BGLenovo ThinkPad L Series ThinkPad L430 2465-2KULenovo ThinkPad L Series ThinkPad L430 2465-5XGLenovo ThinkPad L Series ThinkPad L430 2466-64GLenovo ThinkPad L Series ThinkPad L430 2468-2AULenovo ThinkPad L Series ThinkPad L430 2468-3MGLenovo ThinkPad L Series ThinkPad L430 2468-3SGLenovo ThinkPad L Series ThinkPad L430 2468-67GLenovo ThinkPad L Series ThinkPad L430 2468-6KGLenovo ThinkPad L Series ThinkPad L430 2469-27ULenovo ThinkPad L Series ThinkPad L530 2478-5CGLenovo ThinkPad L Series ThinkPad L530 2478-63ULenovo ThinkPad L Series ThinkPad L530 2479-3CULenovo ThinkPad L Series ThinkPad L530 2479-3DULenovo ThinkPad L Series ThinkPad L530 2479-3EGLenovo ThinkPad L Series ThinkPad L530 2479-45GLenovo ThinkPad L Series ThinkPad L530 2481-2RGLenovo ThinkPad L Series ThinkPad L530 2481-33ULenovo ThinkPad L Series ThinkPad L530 2481-3RGLenovo ThinkPad L Series ThinkPad L530 2481-4RULenovo ThinkPad L Series ThinkPad L530 2481-5HGLenovo ThinkPad Edge Series ThinkPad Edge 11Lenovo ThinkPad Edge Series ThinkPad Edge 11 inchLenovo ThinkPad Edge Series ThinkPad Edge 11 inch NVY4LFRLenovo ThinkPad Edge Series ThinkPad Edge E130 3358-5FGLenovo ThinkPad Edge Series ThinkPad Edge E130 3358-9EGLenovo ThinkPad Edge Series ThinkPad Edge E135 3359Lenovo ThinkPad Edge Series ThinkPad Edge E135 3359-63GLenovo ThinkPad Edge Series ThinkPad Edge E330 3354-4QGLenovo ThinkPad Edge Series ThinkPad Edge E330 3354-4SGLenovo ThinkPad Edge Series ThinkPad Edge E330 3354-AMGLenovo ThinkPad Edge Series ThinkPad Edge E330 3354-ARGLenovo ThinkPad Edge Series ThinkPad Edge E330 3354-BNGLenovo ThinkPad Edge Series ThinkPad Edge E335 3355-64GLenovo ThinkPad Edge Series ThinkPad Edge E40Lenovo ThinkPad Edge Series ThinkPad Edge E430c 3365-73ULenovo ThinkPad Edge Series ThinkPad Edge E530 3259-MFGLenovo ThinkPad Edge Series ThinkPad Edge E530 6272-6KGLenovo ThinkPad Edge Series ThinkPad Edge E530 6272-8HGLenovo ThinkPad Edge Series ThinkPad Edge E530c 3366-2ZULenovo ThinkPad Edge Series ThinkPad Edge E530c 3366-4ZGLenovo ThinkPad Edge Series ThinkPad Edge E530c 3366-68GLenovo ThinkPad Edge Series ThinkPad Edge E530c 3366-69GLenovo ThinkPad Edge Series ThinkPad Edge E530c 3366-6CGLenovo ThinkPad Edge Series ThinkPad Edge E535 3260-5SULenovo ThinkPad Edge Series ThinkPad Edge E535 3260-5VULenovo ThinkPad Edge Series ThinkPad Edge E535 3260-DRULenovo ThinkPad Edge Series ThinkPad Edge E535 3260-DVULenovo ThinkPad Edge Series ThinkPad Edge E535 3260-ECGLenovo ThinkPad Edge Series ThinkPad Edge E535 3260-ERGLenovo ThinkPad Edge Series ThinkPad Edge E535 3260-FLULenovo ThinkPad Edge Series ThinkPad Edge E535 3260-FTGLenovo ThinkPad Edge Series ThinkPad Edge E545 20B2000SUSLenovo ThinkPad Edge Series ThinkPad Edge E545 20B2000WUSLenovo ThinkPad Edge Series ThinkPad Edge E545 20B20010USLenovo ThinkPad Edge Series ThinkPad Edge S430 3364-5HGLenovo K Series - Lenovo K43G - LenovoLenovo K Series - Lenovo K43P - LenovoLenovo IdeaPad Series Ideapad U31Lenovo IdeaPad Series Ideapad U31-70 M500E2USLenovo IdeaPad Series Ideapad U31-70 M500E7USLenovo IdeaPad Series Ideapad U510Lenovo Essential B Series Essential B590 3761-2DGLenovo Essential B Series Essential B590 3761-2NGLenovo Essential B Series Essential B590 6274Lenovo 3000 N Series 3000 N100 SeriesLenovo 3000 N Series 3000 N200 SeriesLenovo 3000 C Series 3000 C100 0761-2BULenovo 3000 C Series 3000 C200 8922-29ULenovo 3000 C Series 3000 C200 8922-A1U
Original Part Number
PA-1650-161 92P1159 92P1157 40Y7696 92P1114 PA-1900-081 92P1156 92P1214 41R4493 PA-1900-17I 92P1109 92P1158 92P1111 93P5026 92P1212 40Y7659 92P1154 92P1153 92P1104 92P1155 92P1211 92P1160 92P1112 92P1110 92P1107 92P1108 92P1106 45N0306 40Y7672 40Y7667 45N0080 45N0314 42T4419 40Y7674 42T4425 45N0302 45N0310 42T4427 45N0184 42T4416 42T5000 45N0182 45N0304 40Y7666 40Y7668 45N0116 45N0059 45N0196 45N0110 40Y7661 45N0214 45N0200 45N0202 42T5283 45N0053 42T4418 40Y7662 45N0055 42T5282 42T4429 45N0324 40Y7669 45N0208 45J7717 45N0210 45N0114 42T4439 45N0308 45N0212 45N0112 PA-1650-53I 45N0118 45N0120 40Y7670 42T4423 45N0122 40Y7671 40Y7673 45N0312 45N0198 45N0322 42T4417 40Y7665 42T4421 45N0318 41R4322 45N0194 45N0068 45N0057 45N0320 45N0192 45N0180 45N0186 40Y7663 92P1103 40Y7664 45N0316 42T4431
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.