Dell 3-Cell 57Wh Li-Ion Battery for Latitude 7340 (66DWX)

Internal laptop battery engineered for Dell Latitude 7340, delivering 57Wh capacity in a 3-cell lithium-ion configuration. The 11.4V output and 5000mAh rating provide consistent power for extended productivity, while the integrated protection circuit guards against overcharge, over-discharge, overcurrent, and short circuits.

Advantages

Original Dell part number 66DWX ensures exact fit and reliable communication with the laptop's power management system. The 57Wh capacity balances weight and runtime, making it ideal for professionals who need dependable performance throughout the workday. Rechargeable design supports hundreds of charge cycles, reducing total cost of ownership.

Suitable for

• Dell Latitude 7340 laptop users requiring a replacement or spare battery
• IT departments maintaining fleets of Latitude 7340 notebooks
• Mobile professionals who need all-day computing without frequent charging

Key specifications

• Battery type: Lithium-Ion (Li-ion)
• Number of cells: 3
• Capacity: 57 Wh / 5000 mAh
• Voltage: 11.4 V
• Dell part number: 66DWX
• Compatible model: Dell Latitude 7340
• Colour: Black
• Condition: New
• Certifications: CE, RoHS

Recommendations

For optimal performance, fully charge the battery before first use and calibrate it periodically by running the laptop until automatic shutdown, then recharging to 100%. Store in a cool, dry place when not in use for extended periods.