Dell Inspiron 15 3520 charger

Replacement 65W Barrel adapter — verified compatible.

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Your laptop
Dell Inspiron 15 3520
3520
Exact match
🔌
Compatible charger
Dell 65W 4.5mm Barrel Adapter
Barrel · 65W · 19.5V DC 3.34A
Cross-checkedDell 4.5mm barrel

Matched from manufacturer specs and cross-checked across sources.

INPUT 100–240VOUTPUT 20V 3.25A= 65W
Quick check: make sure the wattage matches

This charger supplies 65W over Barrel. To find what your laptop needs, read the OUTPUT line on your current charger — the volts × amps is the wattage (e.g. 20V × 3.25A = 65W) — or check the label on the underside of your laptop. The same connector at an equal-or-higher wattage is safe.

Note: Charges via 4.5mm barrel, not USB-C. Older end-of-life 3520 stock may use 7.4mm - check the tip.

Not sure? Snap a photo on the home page and we'll read it for you.

  • ✓65W output safely covers this laptop
  • ✓Connector: 4.5mm x 3.0mm, centre pin

Why this charger is safe

  • ✓
    Higher wattage is generally safe
    Example: a 90W HP Smart adapter safely powers a 65W HP laptop. A 65W USB-C PD charger safely powers a 45W USB-C laptop.
  • ✓
    Lower wattage is not safe for full performance
    Most relevant for XPS 15/17 (130W) and Spectre x360 15/16 (135W) where a 65W charger is insufficient.
  • ✓
    Barrel tip size must match exactly
    A 7.4mm plug will not fit a 4.5mm jack and vice-versa. Dell and HP barrel tips are NOT interchangeable even at the same diameter (different pin/signalling).
  • ✓
    HP Smart Pin and Dell barrels are brand-specific
    HP Smart adapters carry a centre 'sense' pin used for wattage negotiation; Dell uses its own 1-wire ID. Mismatched brand can cause 'AC adapter not recognised' and refusal to fast-charge.
How we verified this＋
Connector: Dell 4.5mm barrel (4.5mm x 3.0mm, centre pin) · Dell DC barrel (1-wire ID)
Original Dell part numbers: LA65NM130, HA65NS5-00, 450-ABFS.
Sources we checked (1)

Which charger does the Dell Inspiron 15 3520 use?

The Dell Inspiron 15 3520 (3520) charges with a 65W Barrel adapter. A charger with the same connector at an equal or higher wattage is safe — your laptop only draws the power it needs. Not sure what yours shipped with? Snap a photo of the label and we'll confirm it.

Connector: Dell 4.5mm barrel — how to identify it→

Related guides

Frequently asked questions

What charger does the Dell Inspiron 15 3520 use?＋

The Dell Inspiron 15 3520 uses a 65W Barrel charger (Dell 65W 4.5mm Barrel Adapter), 19.5V DC.

Can I use a higher-wattage charger with the Dell Inspiron 15 3520?＋

Yes. With the same Barrel connector, a charger of equal or higher wattage is safe — the laptop draws only the power it needs.

Is the Dell Inspiron 15 3520 USB-C or barrel charging?＋

The Dell Inspiron 15 3520 charges over a round barrel plug, not USB-C.

How do I confirm the right charger for my exact Dell Inspiron 15 3520?＋

Read the OUTPUT line on your original charger (volts × amps = watts, e.g. 20V × 3.25A = 65W) or the label under your laptop. Charges via 4.5mm barrel, not USB-C. Older end-of-life 3520 stock may use 7.4mm - check the tip.

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