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If your device isn’t charging or loses charge quickly, it may be time to replace the battery. Follow the instructions below to replace the battery in the Lenovo Yoga C940-IIL laptop.

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  1. Lenovo Yoga C940-IIL  Battery Replacement, Battery: step 1, image 1 of 1
    • Flip over the laptop so that the underside is facing you.

  2. Lenovo Yoga C940-IIL  Battery Replacement: step 2, image 1 of 3 Lenovo Yoga C940-IIL  Battery Replacement: step 2, image 2 of 3 Lenovo Yoga C940-IIL  Battery Replacement: step 2, image 3 of 3
    • Using a plastic opening tool, remove the rubber foot.

  3. Lenovo Yoga C940-IIL  Battery Replacement: step 3, image 1 of 3 Lenovo Yoga C940-IIL  Battery Replacement: step 3, image 2 of 3 Lenovo Yoga C940-IIL  Battery Replacement: step 3, image 3 of 3
    • Using the Phillips #0 screwdriver, remove the three screws underneath the rubber foot.

  4. Lenovo Yoga C940-IIL  Battery Replacement: step 4, image 1 of 3 Lenovo Yoga C940-IIL  Battery Replacement: step 4, image 2 of 3 Lenovo Yoga C940-IIL  Battery Replacement: step 4, image 3 of 3
    • Using the T5 Torx screwdriver, remove the four remaining screws on the outside of the frame.

  5. Lenovo Yoga C940-IIL  Battery Replacement: step 5, image 1 of 3 Lenovo Yoga C940-IIL  Battery Replacement: step 5, image 2 of 3 Lenovo Yoga C940-IIL  Battery Replacement: step 5, image 3 of 3
    • Starting at the top and working around, carefully pry open the bottom cover.

  6. Lenovo Yoga C940-IIL  Battery Replacement: step 6, image 1 of 3 Lenovo Yoga C940-IIL  Battery Replacement: step 6, image 2 of 3 Lenovo Yoga C940-IIL  Battery Replacement: step 6, image 3 of 3
    • It is ok to use a little force when working around. Don't panic if you hear a few pops as you are doing this.

    • Remove the back cover from the device.

  7. Lenovo Yoga C940-IIL  Battery Replacement: step 7, image 1 of 3 Lenovo Yoga C940-IIL  Battery Replacement: step 7, image 2 of 3 Lenovo Yoga C940-IIL  Battery Replacement: step 7, image 3 of 3
    • The battery is held in place by four screws, one of which is hidden.

    • Remove this small piece of rubber is covering one of the screws with your fingers.

  8. Lenovo Yoga C940-IIL  Battery Replacement: step 8, image 1 of 2 Lenovo Yoga C940-IIL  Battery Replacement: step 8, image 2 of 2
    • Use the Phillips #0 screwdriver to remove the four screws securing the battery to the device.

  9. Lenovo Yoga C940-IIL  Battery Replacement: step 9, image 1 of 2 Lenovo Yoga C940-IIL  Battery Replacement: step 9, image 2 of 2
    • To complete the removal of the battery, disconnect the ribbon cable connecting the battery to the computer.

  10. Lenovo Yoga C940-IIL  Battery Replacement: step 10, image 1 of 1
    • Remove the battery from the device.

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

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

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

Jeremiah Bush

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University of North Texas, Team 4-4, Thomas Fall 2021 crwdns2886886:0University of North Texas, Team 4-4, Thomas Fall 2021crwdne2886886:0

UNT-THOMAS-F21S4G4

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Thanks a lot for the clear and thorough guidelines, worked like a charm and saved my 2-year old C940 after its original battery has bloated on its own!

Leonid Glazychev - crwdns2853112:0crwdne2853112:0

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