2-power 2P-5D10W73191 - 39,6 cm (15.6 inch)

When your Dell Latitude E5440 or E5540 starts losing charge faster than expected, the original battery has likely reached the end of its service life. The 2-Power 2P-5D10W73191 is a direct replacement that restores full runtime without the premium price of an OEM unit. Built around a 6-cell lithium-ion pack, this battery delivers 65Wh of energy at 11.1V, giving you enough power for a full workday away from the outlet. It also fits the Dell Precision M2800 mobile workstation, so you can keep demanding applications running longer.

Highlights

• Genuine 2-Power replacement battery, engineered for Dell Latitude E5440, Latitude E5540, and Precision M2800
• High-capacity 65Wh (5856mAh) 6-cell Li-Ion pack for extended runtime
• 11.1V output matches original Dell specifications for safe, reliable operation
• Integrated protection against overcharge, over-discharge, overcurrent, and short circuit
• CE, RoHS, and FCC certified; backed by a 1-year warranty

In daily use

Installing the 2P-5D10W73191 takes only a few minutes — no special tools or software needed. Once fitted, the battery communicates with your laptop's power management system just like the original, so you get accurate charge percentages and remaining time estimates. The 6-cell design provides a noticeable boost in runtime compared to lower-capacity 4-cell alternatives, making it ideal for students, field technicians, and anyone who works on the go. The black casing blends seamlessly with your laptop's chassis, and the rugged construction withstands the bumps and knocks of daily travel.

Full specifications

• Brand: 2-Power
• Model: 2P-5D10W73191
• Product type: Replacement laptop battery
• Battery technology: Lithium-Ion (Li-Ion)
• Voltage: 11.1 V
• Capacity: 65 Wh / 5856 mAh
• Number of cells: 6
• Colour: Black
• Compatible brands: Dell
• Compatible models: Latitude E5440, Latitude E5540, Precision M2800
• Rechargeable: Yes
• Protection: Overcharge, over-discharge, overcurrent, short circuit
• Certifications: CE, RoHS, FCC
• Warranty: 1 year

Final note

Restore your Dell laptop's mobility with a dependable, cost-effective battery that meets the same safety and performance standards as the original. The 2-Power 2P-5D10W73191 is the smart choice for keeping your Latitude or Precision running at full capacity.