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Rectangular black lithium-ion notebook battery with three cells and connector pins

Battery Technology Inc.

Battery Technology Inc. 93FTFBTI laptop battery 4254 mAh 11.4 V

SKU CH-0642-1S3WX MPN 93FTFBTI

Replacement lithium-ion notebook battery delivering 51 Wh at 11.4 V for compatible Dell Latitude models

  • Battery TypeLithium-Ion
  • Rechargeable lithium-ion chemistry keeps the notebook running
  • 4254 mAh capacity delivers up to 51 Wh of energy
  • Three cells provide stable 11.4 V DC output
  • Fits Dell Latitude 5490 5491 5495 5580 models
  • 18-month limited warranty backs the replacement battery

BTI 4254 mAh 11.4 V Dell Latitude battery

This 51 Wh lithium-ion pack replaces the original cell in Dell Latitude 5490, 5491, 5495 and 5580 notebooks. It delivers 11.4 V DC from three internal cells and carries an 18-month limited warranty. The proprietary form factor fits the designated battery bay without adapters.

Upgrade from a depleted or swollen original pack

When the factory battery no longer holds a useful charge or shows physical swelling, this unit restores full mobile runtime. The jump is worth it if the notebook still meets your performance needs and the chassis is intact. It is not for buyers who need a higher-capacity alternative or a second hot-swap pack.

Limits of the proprietary lithium-ion interface

The pack uses a Dell-specific connector and cell arrangement, so it cannot be used in other brands or in Latitude models outside the listed series. Capacity is fixed at 4254 mAh with no user-expandable option. Runtime will vary with workload, screen brightness and power-profile settings.

Highlights

  • Rechargeable lithium-ion chemistry keeps the notebook running
  • 4254 mAh capacity delivers up to 51 Wh of energy
  • Three cells provide stable 11.4 V DC output
  • Fits Dell Latitude 5490 5491 5495 5580 models
  • 18-month limited warranty backs the replacement battery

Specifications

BrandBATTERY TECHNOLOGY
Battery TypeLithium-Ion
Shipping weight0.91 kg
Package size224 × 122 × 119 mm

Questions about this item

What Dell Latitude models does the 93FTFBTI battery fit?

The 93FTFBTI fits Dell Latitude 5495, 5490, 5491 and 5580 notebooks.

How do I install this internal battery and what step is often missed?

Power off the laptop, remove the base screws, disconnect the old pack, connect the new 11.4 V 4254 mAh battery, reassemble and then calibrate with a full charge and discharge cycle.

What replacement or maintenance will this 3-cell 51 Wh pack need over time?

The lithium-ion cells degrade with use; expect to replace the battery when runtime no longer meets your needs, covered by an 18-month limited warranty.

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