Home » Dell Latitude 3550 Series Compatible Laptop Adapter 19.5V 3.34A/4.62A 65W/90W (Fixed K1-Tip)
Dell Latitude 3550 Series Compatible Laptop Adapter 19.5V 3.34A/4.62A 65W/90W (Fixed K1-Tip)
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Dell Latitude 3550 Series Compatible Laptop Adapter 19.5V 3.34A/4.62A 65W/90W (Fixed K1-Tip)
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Latitude Series

Dell Latitude 3550 Series Compatible Laptop Adapter 19.5V 3.34A/4.62A 65W/90W (Fixed K1-Tip)

SKU: AC19V90K1-BP-K344
C$25.00
In stock
Orders placed after 3:00 PM (PT) will be processed on the next business day.

More Compatible Options

→ Shop Latitude Series products
  • Compatible Brands Dell
  • Model/OPN Latitude 3550 Series
  • Model Series Latitude Series
  • Output Current 3.34A/4.62A
  • Output Voltage 19.5V
  • Input Voltage AC100~240V / 50~60Hz
  • Power 65W/90W
  • Tip Size 7.4*5.0mm
  • Warranty 1 Year
Ships from Canada • Fast local delivery

This replacement laptop adapter for Dell Latitude 3550 Series is available for C$25.00 . 19.5V · 3.34A/4.62A · 65W/90W · Tip: 7.4*5.0mm.

Important Notes
  • Please make sure the DC output and tip size are compatible before placing the order.
  • For Inspiron 15 3000 series, please must make sure the tip size before placing the order.
Compatible Model
Dell 421x-1046 Dell Alienware M11xR3 Dell Alienware M15x Dell Chromebook 11 Dell Inspiron 14-3521 Dell Inspiron 14R N-1364DBK Dell Inspiron 14R N4110-7255DBK Dell Inspiron 14R-1445PBL Dell Inspiron 15R 5545 P39F-002 Dell Inspiron 17 I7737 Dell Inspiron 17RN-3530 Dell Inspiron 5010-D460HK Dell Inspiron 6400 Dell Inspiron N3010R Dell Inspiron N4011D Dell Latitude E5420n Dell Latitude E6420 N-Series Dell Vostro 3460 Dell XPS 15 (L501X)
Original Part Number
Dell 04H6NV Dell 07W104 Dell 0928G4 Dell 09RN2C Dell 09T215 Dell 0DF263 Dell 0F7970 Dell 0NN236 Dell 0NNWP1 Dell 0V0KR Dell 0WK890 Dell 1X917 Dell 310-2862 Dell 310-399 Dell 310-4408 Dell 310-4804 Dell 310-6325 Dell 310-6557 Dell 310-7441 Dell 310-7501 Dell 310-7693 Dell 310-7697 Dell 310-7698 Dell 310-7699 Dell 310-7712 Dell 310-7721 Dell 310-7743 Dell 310-7744 Dell 310-7866 Dell 310-7867 Dell 310-8363 Dell 310-9047 Dell 310-9049 Dell 310-9376 Dell 310-9438 Dell 310-9757 Dell 312-0596 Dell 312-0597 Dell 320-1389 Dell 330-1825 Dell 330-1827 Dell 330-2963 Dell 330-3003 Dell 330-3614 Dell 330-4113 Dell 330-4281 Dell 331-5968 Dell 5U092 Dell 610-3399 Dell 6C3W2 Dell 6TFFF Dell 7W104 Dell 928G4 Dell C026H Dell CF820 Dell CM889 Dell D094H Dell DA65NM130 Dell DA65NM134 Dell DA65NM135 Dell DA65NM137 Dell DA65NM139 Dell DF266 Dell F8834 Dell FA90PM130 Dell FA90PM131 Dell FA90PM132 Dell FA90PM133 Dell FA90PM135 Dell FA90PM137 Dell FA90PM138 Dell FA90PM139 Dell HA90NM130 Dell HF274 Dell HH44H Dell HX648 Dell K9TGR Dell KT2MG Dell LA65NS2-01 Dell MK911 Dell N2768 Dell N566J Dell NADP-90KB Dell ORM617 Dell PA12 Dell PA-1650-02DD Dell PA-1650-050 Dell PA-1650-05D2 Dell PA-1900-02D2 Dell PA-21 Dell PA-2E Dell PA-3E Dell PC531 Dell TJ76K Dell U7809 Dell V1277 Dell W916G Dell XD802 Dell Y596G Dell YT886
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.