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Battery Disconnect

Prerequisite Only
This is a prerequisite-only guide! This guide is part of another procedure and isn’t meant to be used alone.

Introduction

How to disconnect the battery in your Dell Latitude 4790 laptop. This should be done before all major repairs.

What you need

  1. Battery Disconnect, Prepare your laptop for disassembly: step 1, image 1 of 2 Battery Disconnect, Prepare your laptop for disassembly: step 1, image 2 of 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. Battery Disconnect, Flip your laptop over: step 2, image 1 of 1

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

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  3. Battery Disconnect, Loosen the captive screws: step 3, image 1 of 2 Battery Disconnect, Loosen the captive screws: step 3, image 2 of 2

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

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  5. Battery Disconnect, Insert an opening pick: step 4, image 1 of 3 Battery Disconnect, Insert an opening pick: step 4, image 2 of 3 Battery Disconnect, Insert an opening pick: step 4, image 3 of 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. Battery Disconnect, Release the clips: step 5, image 1 of 3 Battery Disconnect, Release the clips: step 5, image 2 of 3 Battery Disconnect, Release the clips: step 5, image 3 of 3

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

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  7. Battery Disconnect: step 6, image 1 of 3 Battery Disconnect: step 6, image 2 of 3 Battery Disconnect: step 6, image 3 of 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.

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  8. Battery Disconnect, Remove the back cover: step 7, image 1 of 3 Battery Disconnect, Remove the back cover: step 7, image 2 of 3 Battery Disconnect, Remove the back cover: step 7, image 3 of 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.

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  9. Battery Disconnect, Disconnect the battery: step 8, image 1 of 2 Battery Disconnect, Disconnect the battery: step 8, image 2 of 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.

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Conclusion

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

Author

Spencer Day

Member since: 09/14/22

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