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Dell Latitude 7490 Battery Replacement

소개

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

If your battery is swollen, take appropriate precautions.

필요한 것

  1. Dell Latitude 7490 Battery Replacement, Prepare your laptop for disassembly: 1 단계, 이미지 1/2 Dell Latitude 7490 Battery Replacement, Prepare your laptop for disassembly: 1 단계, 이미지 2/2

    • 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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  2. Dell Latitude 7490 Battery Replacement, Flip your laptop over: 2 단계, 이미지 1/1

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

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  3. Dell Latitude 7490 Battery Replacement, Loosen the captive screws: 3 단계, 이미지 1/2 Dell Latitude 7490 Battery Replacement, Loosen the captive screws: 3 단계, 이미지 2/2

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

    번역하기

  4. Dell Latitude 7490 Battery Replacement, Insert an opening pick: 4 단계, 이미지 1/3 Dell Latitude 7490 Battery Replacement, Insert an opening pick: 4 단계, 이미지 2/3 Dell Latitude 7490 Battery Replacement, Insert an opening pick: 4 단계, 이미지 3/3

    • 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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  6. Dell Latitude 7490 Battery Replacement, Release the clips: 5 단계, 이미지 1/3 Dell Latitude 7490 Battery Replacement, Release the clips: 5 단계, 이미지 2/3 Dell Latitude 7490 Battery Replacement, Release the clips: 5 단계, 이미지 3/3

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

    번역하기

  7. Dell Latitude 7490 Battery Replacement: 6 단계, 이미지 1/3 Dell Latitude 7490 Battery Replacement: 6 단계, 이미지 2/3 Dell Latitude 7490 Battery Replacement: 6 단계, 이미지 3/3

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

    번역하기

  8. Dell Latitude 7490 Battery Replacement, Remove the back cover: 7 단계, 이미지 1/3 Dell Latitude 7490 Battery Replacement, Remove the back cover: 7 단계, 이미지 2/3 Dell Latitude 7490 Battery Replacement, Remove the back cover: 7 단계, 이미지 3/3

    • 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.

    번역하기

  9. Dell Latitude 7490 Battery Replacement, Disconnect the battery: 8 단계, 이미지 1/2 Dell Latitude 7490 Battery Replacement, Disconnect the battery: 8 단계, 이미지 2/2

    • 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.

    번역하기

  10. Dell Latitude 7490 Battery Replacement, Unfasten the battery: 9 단계, 이미지 1/2 Dell Latitude 7490 Battery Replacement, Unfasten the battery: 9 단계, 이미지 2/2

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

    번역하기

  11. Dell Latitude 7490 Battery Replacement, Remove the battery: 10 단계, 이미지 1/3 Dell Latitude 7490 Battery Replacement, Remove the battery: 10 단계, 이미지 2/3 Dell Latitude 7490 Battery Replacement, Remove the battery: 10 단계, 이미지 3/3

    • Lift the top edge of the battery.

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

    번역하기

  12. Dell Latitude 7490 Battery Replacement, Reassembly information: 11 단계, 이미지 1/3 Dell Latitude 7490 Battery Replacement, Reassembly information: 11 단계, 이미지 2/3 Dell Latitude 7490 Battery Replacement, Reassembly information: 11 단계, 이미지 3/3

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

    번역하기

  13. Dell Latitude 7490 Battery Replacement, Remove the battery cable: 12 단계, 이미지 1/3 Dell Latitude 7490 Battery Replacement, Remove the battery cable: 12 단계, 이미지 2/3 Dell Latitude 7490 Battery Replacement, Remove the battery cable: 12 단계, 이미지 3/3

    • 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.

    번역하기
결론

To reassemble your device, follow these instructions in reverse order.

For optimal performance, calibrate your newly installed battery after completing this guide.

Take your e-waste to an R2 or e-Stewards certified recycler.

Repair didn’t go as planned? Try some basic troubleshooting, or ask our Answers community for help.

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