Dell Latitude 3440 3540 E3440 Laptop Battery Replacement

The Dell Latitude 3440 / 3540 / E3440 OEM-Compatible Battery (DR02P / R73TC) is a premium replacement pack delivering reliable power and runtime upgrade in a lightweight form factor. Boasting 54 Wh capacity using 6-cell Samsung-grade cells, this plug-and-play unit fits perfectly in your Latitude without BIOS errors or charging issues—ideal for office, student, and field use.

Product Features

Broad Device Compatibility

This Dell laptop battery is engineered to fit a wide range of Dell models, including the Latitude 3440, 3540, E3440, and E3540, along with numerous Inspiron and Vostro series laptops. Ideal for users seeking a reliable battery replacement across various models.

High-Performance Battery Cells

Constructed with premium lithium-ion cells, this battery ensures long-lasting performance and consistent power output, extending the productive time of your laptop between charges.

Safety-First Design

Built-in circuit protection safeguards your device from overcharging, overheating, and short-circuiting, ensuring safe and efficient battery usage.

Reliable Build Quality

Manufactured using high-grade materials that meet OEM standards, the battery provides excellent durability and a dependable fit in compatible Dell laptops.

Ideal for Daily and Business Use

Whether you’re working on the go or using your laptop at home, or in the office, this battery is designed to deliver consistent and reliable performance.

Product Specifications

• Battery Type: Lithium-ion (Li-ion)
• Voltage: 14.8V
• Capacity: Varies by configuration (typically 40Wh–65Wh, depending on model)
• Color: Black
• Compatible Models:
  • Dell Inspiron Series:
    • 14-3421, 14-3437, 14-5421, 14-N3421, 14-N5421
    • 14R-3421, 14R-5437
    • 15-3521, 15-3537
    • 15R-5521, 15R-5537, 15R-N3521, 15R-N5521, 15R-N5537
    • 17-3721, 17-3737
    • 17R-5737, 17R-N3721, 17R-N3737, 17R-N5721, 17R-N5737
  • Dell Latitude Series:
    • Latitude 14 3000, Latitude 15 3000
    • Latitude 3440, 3540, E3440, E3540
  • Dell Vostro Series:
    • Vostro 2421, Vostro 2521
• Recommended Use: Laptop Battery Replacement
• Warranty: Typically 6 to 12 months, depending on vendor
• Reusability: Rechargeable