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Rectangular 3-cell lithium-ion laptop battery, dark plastic casing with label and connector strip

DELL

DELL 451-BBFY 34 Whr 3-Cell Laptop Battery

SKU CH-Z8NZ-SBJZ4 MPN 451-BBFY

A 34 Whr three-cell lithium-ion battery for Dell Latitude E7440 laptops

  • Battery typeLithium-Ion
  • Product typeBattery
  • 34 Whr capacity keeps your Latitude running longer on a single charge
  • Lithium-Ion chemistry delivers reliable power without memory effect
  • Three-cell design balances runtime with a slim profile
  • Genuine Dell 451-BBFY module ensures proper fit and communication
  • Direct replacement for the original battery in Latitude E7440 systems

What it is

The Dell 451-BBFY is a 34 Whr three-cell lithium-ion primary battery built for the Dell Latitude E7440. It serves mobile professionals who need a factory-specification replacement to keep their existing notebook running away from mains power.

What the bundle changes

The pack contains only the battery itself; no charger, tools or software are included. Swapping the old cell restores the original runtime without altering any system setting or requiring driver installation.

Practical limits of the interface

The cell connects through the Latitude E7440’s proprietary battery bay, so it fits only that chassis. It cannot be used in other Dell models or charged externally, and its 34 Whr capacity defines the maximum mobile operating time available.

How it compares

Measured against everything we stock in Laptop Chargers & Batteries, at today’s prices. Recalculated every night.

Price $85.99
Pricier than about 90% of the 27,790 comparable items (median $30.99).

Specifications

Product
Brand nameDELL
Product typeBattery
Power
Battery typeLithium-Ion
Size & build
Shipping weight0.91 kg
Package size307 × 66 × 8 mm

Questions about this item

When will the 3-cell lithium-ion pack need replacing?

The 34 Whr battery should last several hundred charge cycles before capacity drops noticeably; replace it when run-time no longer meets your daily needs.

What limits continuous use on the Latitude E7440?

The 34 Whr capacity is the first limit; sustained workloads will drain the pack in a few hours before recharging is required.

Does the 451-BBFY get hot or noisy during all-day operation?

The battery itself has no fan and produces minimal heat; any warmth or noise comes from the laptop chassis, not the pack.

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