Dell 240W 7.4mm Barrel Adapter
240W · Dell 7.4mm barrel
The Dell 240W 7.4mm Barrel Adapter is a 240W replacement charger that connects via the Dell 7.4mm barrel using Dell DC barrel (1-wire ID). It is suitable for Dell only laptops rated 240W or below.
- Wattage
- 240W
- Voltage
- 19.5V DC
- Amperage
- 12.3A
- Connector
- Dell 7.4mm barrel
- Connector size
- 7.4mm x 5.0mm, centre pin
- Protocol
- Dell DC barrel (1-wire ID)
- E-marked cable required
- No
- Risk level
- medium
- Verification
- verified
Safety information
- For Dell Precision 7-series mobile workstations (7560/7670/7770) needing 240W over the 7.4mm tip. Safely covers 180W Precision configs with the same tip.
Higher-wattage compatibility
A Dell 7.4mm barrel charger at 240W safely powers any Dell 7.4mm barrel laptop rated 240W or below. A charger rated HIGHER than the original wattage is safe, provided connector type, polarity and (for barrel) tip size and voltage all match. The laptop draws only the current it needs.
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.
Connector
Uses the Dell 7.4mm barrel — how to identify it→Compatible laptop families
Ships as standard with the Dell Precision 7560, Dell Precision 7670, Dell Precision 7770.
What to search for
When buying a replacement, search for “Dell 240W 7.4mm barrel charger DA240PE1-00” and confirm the wattage and connector match the specs above.
Frequently asked questions
Can I use a higher-wattage Dell 7.4mm barrel charger instead of the Dell 240W 7.4mm Barrel Adapter?＋
Yes. A charger with the same connector (Dell 7.4mm barrel) at an equal or higher wattage is safe — your laptop only draws the power it needs. A lower-wattage charger may charge slowly or not at all.
Which laptops use the Dell 240W 7.4mm Barrel Adapter?＋
It powers Dell 7.4mm barrel laptops rated 240W or below, including Dell Precision.