Home » Lenovo 45K2209 Compatible Laptop Adapter 19V 2.1A 40W (Fixed C-Tip)
Lenovo 45K2209 Compatible Laptop Adapter 19V 2.1A 40W (Fixed C-Tip)
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Lenovo 45K2209 Compatible Laptop Adapter 19V 2.1A 40W (Fixed C-Tip)
Product image 2

Lenovo 45K2209 Compatible Laptop Adapter 19V 2.1A 40W (Fixed C-Tip)

SKU: AC19V40C-BP-K004
C$23.00
In stock
Orders placed after 3:00 PM (PT) will be processed on the next business day.

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  • Compatible Brands Lenovo
  • Model/OPN 45K2209
  • Output Current 2.1A
  • Output Voltage 19V
  • Input Voltage AC100-240V / 50-60Hz
  • Power 40W
  • Tip Size 5.5*2.5mm
  • Warranty 1 Year
Ships from Canada • Fast local delivery

This replacement laptop adapter for Lenovo 45K2209 is available for C$23.00 . 19V · 2.1A · 40W · Tip: 5.5*2.5mm.

Compatible Model
Lenovo IdeaPad U Series IdeaPad U150Lenovo IdeaPad U Series IdeaPad U150 6909Lenovo IdeaPad U Series IdeaPad U150 690968ULenovo IdeaPad U Series IdeaPad U150 690969ULenovo IdeaPad U Series IdeaPad U150 6909H9JLenovo IdeaPad U Series IdeaPad U150 6909HAJLenovo IdeaPad U Series IdeaPad U150 6909HFJLenovo IdeaPad U Series IdeaPad U150 6909HGJLenovo IdeaPad U Series IdeaPad U150 SFOLenovo IdeaPad U Series IdeaPad U150 STWLenovo IdeaPad Series IdeaPad S100Lenovo IdeaPad Series IdeaPad S10-3 0647Lenovo IdeaPad Series IdeaPad S10-3 0647-29ULenovo IdeaPad Series IdeaPad S10-3 0647-2AULenovo IdeaPad Series IdeaPad S10-3 0647-2BULenovo IdeaPad Series IdeaPad S10-3 0647-35ULenovo IdeaPad Series IdeaPad S10-3 0647-37ULenovo IdeaPad Series IdeaPad S10-3 0647-38ULenovo IdeaPad Series IdeaPad S10-3 0647-46ULenovo IdeaPad Series IdeaPad S10-3 0647-4CULenovo IdeaPad Series IdeaPad S10-3 0647-52MLenovo IdeaPad Series IdeaPad S10-3 0647-57MLenovo IdeaPad Series IdeaPad S10-3 0647-59MLenovo IdeaPad Series IdeaPad S10-3 0647-EBVLenovo IdeaPad Series IdeaPad S10-3 0647-EFVLenovo IdeaPad Series IdeaPad S10-3 SeriesLenovo IdeaPad Series IdeaPad S10-3cLenovo IdeaPad Series IdeaPad S205Lenovo IdeaPad Series Ideapad S205S series
Original Part Number
ADP-40NH B ADP-40MH BD 0225A2040 45K2201 45N0097 45K2206 45J7714 41R4455 31036044 41R4450 41R4456 31038058 42T4449 888010143 41R4327 888010144 55Y9366 31036046 31036036 55Y9369 41R4446 55Y9377 888010185 57Y6364 57Y6377 31037975 41R4447 55Y9367 41R4451 57Y6367 41R4442 55Y9368 888009767 45K1744 31038056 41R4445 57Y6278 45K2205 57Y6349 31037980 55Y9276 45K2200 41R4332 45J7715 888010183 41R4515 55Y9375 45K2209 31036028 57Y6277 31036035 31036047 888010142 31036033 31036034 31038047 31036039 55Y9370 31036038 45K2213 45K2214 41R4441 45K2207 57Y6373 31038057 31038049 888009768 41R4452 888010145 31038055 31036045 45K2210 45K2204 57Y6371 888010189 31038054 45J7713 45J7708 31038046 55Y9374 55Y9378 31037967 57Y6366 31036030 42T4455 888010187 45K1745 31037974 41R4449 45K2216 45N0098 57Y6375 57Y6351 57Y6365 55Y9371 55Y9362 55Y9376 31037964 45K1746 41R4338 45K2215 41R4336 31038048 55Y9361 41R4326 57Y6350 55Y9365 0225C2040 PA-1400-12 LN-A0403A3C PA3743U-1ACA
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.