Dell Original 65W 7.4mm Barrel Charger for Latitude E6440 / E5440 — quick answer
The Dell Original 65W 7.4mm Barrel Charger for Latitude E6440 / E5440 is a genuine, tested Dell 65W power adapter available at N.N Laptops, Hafeez Center, Lahore for Rs. 4,799. It outputs 19.5V at 3.34A through the 7.4mm × 5.0mm barrel with center pin connector and is the OEM-spec charger for Latitude E6440, Latitude E5440, Latitude E7440. Backed by our 30-day check warranty with Lahore delivery and with nationwide delivery via TCS / Leopards.
Full specifications
| Brand | Dell |
|---|---|
| Wattage | 65W |
| Output Voltage | 19.5V |
| Output Current | 3.34A |
| Connector Type | 7.4mm × 5.0mm barrel with center pin |
| AC Input | 100-240V, 50-60Hz (Pakistan compatible) |
| Cable Length | ~1.8m (brick to laptop) + ~1.5m wall cord |
| Compatible Models | Latitude E6440, Latitude E5440, Latitude E7440, Latitude E6420, Latitude E6540 |
| Condition | Genuine — Tested |
| Warranty | 30-day check warranty |
Compatibility — which laptops does this fit?
This 65W Dell charger is the OEM-spec power adapter for:
Wattage and connector are the two factors that decide compatibility. The 7.4mm × 5.0mm barrel with center pin connector physically matches only the listed models — do not force it into a different-size port. If you have a related but different model, WhatsApp us with the exact spec sticker text and we'll confirm before you buy.
What's in the box & build quality
Every charger we ship includes the brick-to-laptop cable (fixed), the Pakistan 3-pin C5 'mickey-mouse' wall cord, and a soft pouch for travel. Build quality on this Dell unit is exactly what came with the laptop new — same chassis injection, same internal magnetic shielding, same cable strain-relief.
What you get
- 1× Dell 65W adapter brick
- 1× Pakistan/UK 3-pin AC cord
- 30-day check warranty card
Real-world use — what to expect
Plug it in and the laptop charges at full speed: 0-50% in about 35-45 minutes on most modern Dell machines, full charge in 1.5-2 hours. The brick warms up to 40-45°C under load — that's normal for a switching power supply, not a defect. The white LED on the tip turns on the moment AC is connected, so you have instant visual confirmation the brick is alive even if the laptop battery is fully drained.
How to verify you've got the right charger
Three checks before you buy:
1. Wattage
Look at the sticker on the bottom of your current charger — if it says 65W, you're matched. A higher-wattage Dell charger is also safe (laptop only draws what it needs); a lower-wattage one will run the laptop but won't charge under heavy load.
2. Connector size
Use a calliper or compare to the sample photo. 7.4mm × 5.0mm barrel with center pin is the only fit — don't force a wrong-size pin.
3. Voltage
Must be 19.5V. Never use a Dell charger from a desktop or printer — those are 12V DC and will damage the laptop board.
Performance & load testing
Every charger we sell is bench-tested before dispatch. We check output voltage at no-load and under a 65W dummy load, measure ripple (< 100mVp-p is our pass threshold), and verify protection circuits (overcurrent, short-circuit, over-temperature). A genuine Dell brick like this one keeps ripple under 50mVp-p — clean power that won't cause random shutdowns or battery degradation. If you're buying a used or refurbished charger online, insist on this kind of testing; we do it on every unit.
Comparing to third-party chargers
Third-party 65W chargers can be tempting at half the price, but they often cut corners: thinner cables prone to breaking, higher ripple that stresses the laptop's voltage regulator, and cheaper capacitors that swell or leak within a year. This Dell original uses industrial-grade 105°C capacitors and a shielded transformer that rejects mains noise. For a laptop you use daily, the original pays for itself in reliability and longer laptop life. That said, we do stock high-grade compatible chargers if budget is tight — just WhatsApp Sayam at 0314 4000131 and he'll help you choose.
Where to buy in Lahore — and shipping nationwide
We're at Shop 66A, 3rd Floor, Hafeez Center, Gulberg III, Lahore. Walk-in welcome — bring your laptop and we'll test the charger on it before you buy. Lahore deliveries are free; nationwide via TCS / Leopards reach Karachi, Islamabad, Rawalpindi, Faisalabad, Multan, Peshawar in 1-3 working days. WhatsApp 0314 4000131 to confirm stock.
Browse all our laptop chargers laptop parts, or our complete laptop battery range.
Warranty & after-sales support
Every charger carries our standard 30-day check warranty — if the brick fails on first install, develops an output fault, or shows AC ripple during the test period, bring it back to the shop with the invoice for a full replacement or refund. No questions asked within the warranty window.
Frequently asked questions
Is this an original or compatible charger?
Both options come through our stock. This unit is a genuine Dell pull-out from working laptops, fully tested for output voltage stability, ripple, and protection circuits. We also stock high-grade compatible versions if budget is tight — just tell us on WhatsApp 0314 4000131 which you prefer.
Can I use a higher-wattage charger instead?
Yes, higher wattage is safe as long as the voltage matches. A 90W or 110W Dell brick with the same 7.4mm × 5.0mm barrel with center pin works fine and will not damage the laptop. The laptop only draws what it needs — extra headroom helps for fast-charge mode and heavy GPU loads.
Does the charger include the wall cable?
Yes. Every charger ships with the Pakistan 3-pin C5 (mickey-mouse) AC cable to the wall. The brick-to-laptop side is a fixed cable for slim-tip and barrel models, and a detachable USB-C cable on USB-C models.
What about the new USB-C version — should I switch?
If your laptop has a Thunderbolt or USB-C charging port (most Dell models from 2019 onwards do), USB-C PD is the future-proof choice — you can charge from any compatible 65W+ brick, phone bank, or hub. For older slim-tip / barrel models, stick with the original-style charger listed here.
How do I know if this is the correct charger for my Latitude?
Check the sticker on your original charger: if it says 65W, 19.5V, and the tip is 7.4mm × 5.0mm barrel with center pin, you're good. Also, your laptop model should be one listed in the compatibility table. If you're unsure, WhatsApp a photo of your laptop's bottom sticker and your current charger to Sayam at 0314 4000131 — he'll confirm in minutes.
N.N Laptops — Shop 66A, 3rd Floor, Hafeez Center, Gulberg III, Lahore. WhatsApp / Call 0314 4000131. Lahore delivery, with nationwide delivery via TCS / Leopards, 30-day check warranty.
