Dell Latitude 7490 Battery Replacement

Spencer Day

Última atualização em January 16, 2024

20 - 30 minutos

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Guia em destaque

Introdução

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Use this guide to replace a dead or malfunctioning battery in your Dell Latitude 4790 laptop.

If your battery is swollen, take appropriate precautions.

O que você precisa

Fix Kit

Este kit contém todas as peças e ferramentas necessárias para executar este guia.

Dell F3YGT Battery

Peças

Dell F3YGT Battery

Ferramentas

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Passo 1 Prepare your laptop for disassembly

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Allow your laptop's battery to drain below 25% before starting this repair—a charged battery may catch fire if damaged.
Unplug all cables and fully shut down your laptop.

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Passo 2 Flip your laptop over

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Flip your laptop over so the rubber feet strips are facing up.

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Passo 3 Loosen the captive screws

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Use a Phillips screwdriver to fully loosen the eight captive screws securing the back cover.

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Passo 4 Insert an opening pick

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Plastic clips secure the back cover to the frame. You'll hear and feel them release as you work.
Insert the long side of an opening pick between the top right corner of the back cover and frame.
Pry the back cover up to release the clips securing the top right corner.

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Passo 5 Release the clips

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Slide the opening pick down the right edge and around the bottom right corner to release the clips.

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Passo 6

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Slide the opening pick along the front edge and up to the top left corner to release the remaining clips securing the back cover.

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Passo 7 Remove the back cover

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Remove the back cover.
During reassembly, lay the back cover on the frame and press down firmly around the perimeter to engage all the clips.

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Passo 8 Disconnect the battery

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Grip the plastic tab on the battery connector and pull straight up to disconnect it.
During reassembly, align this connector over its socket and press down until it clicks into place. If it doesn't connect, re‑align it and try again.

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Passo 9 Unfasten the battery

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Use a Phillips screwdriver to remove the two 5.7 mm‑long screws securing the battery.

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Passo 10 Remove the battery

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Lift the top edge of the battery.
Slide the battery's bottom edge out of its recess in the frame and remove the battery.

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Passo 11 Reassembly information

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During reassembly, slide the four plastic tabs on the bottom edge of the battery into their recesses on the frame before securing the battery.

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Passo 12 Remove the battery cable

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If your replacement battery doesn’t come with a cable preinstalled, you’ll have to transfer your original cable to the new battery.
Take care not to puncture or bend the battery—it can leak dangerous chemicals and/or catch fire.
Flip the battery over and lay it on a clean working surface.
Use one hand to secure the battery.
Use your other hand to firmly pull the battery connector out of its socket on the bottom edge of the battery.
Remove the battery cable from its recess between the two battery cells.
During reassembly, transfer the battery cable to your new battery, making sure the cable is snug between the battery cells.