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Battery Technology 66DWX-BTI 57 Wh laptop battery showing rear label and connector port
Battery Technology 66DWX-BTI 57 Wh laptop battery showing rear label and connector port

Battery Technology 66DWX-BTI 57 Wh 3-cell 11.4 V Battery

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Dispatch Time: Next Working Day Dispatch timelines are estimates and may vary due to unforeseen delays of 1-2 working days for small orders. Larger quantities may require additional processing time.

Product Code: BTEL-3774

MPN #: 66DWX-BTI

Product Condition: New

Running out of power mid-task is frustrating, especially when you rely on a Dell Latitude for work or study. The Battery Technology 66DWX-BTI 57 Wh 3-cell 11.4 V Battery is a direct replacement that restores full-day mobility to your notebook, letting you stay productive without hunting for a charger.

Key Features of a 57 Wh Battery
  • Capacity: 5000 mAh - 57 Wh. Provides long run-time so you can work longer between charges.
  • Voltage: 11.4 V - Matches the original power requirements for stable performance.
  • Technology: Lithium ion - Offers reliable energy storage and low self-discharge.
  • Cell count: 3-cell - Balances size and power for a compact notebook design.
  • Colour: Black - Blends seamlessly with the laptop’s original aesthetic.
  • Compatibility: Dell 66DWX - Fits Dell Latitude 7340, 7440 and 7640 models perfectly.
  • Quantity: 1 pc(s) - One battery per package, ready for immediate installation.
  • Product type: Notebook battery - Designed specifically for portable computers.

Why Choose a Battery Technology Battery

If you own a Dell Latitude 7340, 7440 or 7640, you know the original battery can lose capacity over time, leading to frequent recharges and reduced productivity. Finding a reliable replacement that matches the original specifications can be difficult, and low-quality alternatives may cause overheating or poor performance. This Battery Technology battery delivers the exact capacity, voltage and fit of the OEM part, ensuring your laptop runs as smoothly as when it was new, without the hassle of compatibility worries.

Benefits of Battery Technology Battery
  • Extended work time: Keeps your laptop running for many hours on a single charge.
  • Seamless fit: Drops into the existing battery compartment without modifications.
  • Safe operation: Lithium-ion chemistry provides stable power and protects against over-charging.
  • Cost-effective: Offers OEM-level performance at a lower price than buying a new laptop.

Usages of a 57 Wh Battery

The 57 Wh Battery Technology battery is ideal for professionals who travel, students attending long lectures, and anyone needing reliable power for demanding applications such as video conferencing, data analysis or creative work on a Dell Latitude notebook. It restores the original endurance of your device, making it suitable for office, home or on-the-go use.


Specifications
Miscellaneous
Miscellaneous / Color CategoryBlack
Miscellaneous / OEM Manufacturer Battery EquivalentDell 66DWX
Header
Header / Product LineBTI
Header / Packaged Quantity1
Battery
Battery / Capacity5000 mAh - 57 Wh
Battery / Capacity (Wh)57Wh
Battery / Voltage Provided11.4V
Battery / Capacity (Ah)5000mAh
Battery / TechnologyLithium ion
General
General / Product TypeNotebook battery
General / Device TypeNotebook battery
General / SubcategoryBatteries
Summary Details
Number of batteries included1 pc(s)
Battery capacity4878 mAh
Battery capacity57 Wh
Battery technologyLithium-Ion (Li-Ion)
Battery voltage11.4 V
Product colourBlack

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