Introduction
Use this guide to replace the battery in your Lenovo ThinkPad T490s Laptop.
For your safety, discharge the battery below 25% before disassembling your device. This reduces the risk of fire if the battery is accidentally damaged during the repair. If your battery is swollen, take appropriate precautions.
What you need
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Use your Phillips #1 screwdriver to fully loosen the five screws on the back cover.
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Orient your laptop so that the screen's silver hinges are closest to you.
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Insert an opening pick between the back cover and the device body near a hinge corner.
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Pry upward to release the clips holding the cover. Listen for a loud click when each clip releases.
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Insert your opening pick between the cover and the device body at the other hinge corner.
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Pry upward to release additional retaining clips.
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Grab the front edge of the cover and lift it away from you.
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Grab the battery pull-tab at the head of the connector.
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Pull the connector out of its socket in the direction of the cable.
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Use a Phillips #0 screwdriver to remove the five 5.2 mm-long screws securing the battery.
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Lift the battery straight out of its recess and remove it.
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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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