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Introduction

This guide will show you how to locate and replace the Lenovo T431s battery. The battery provides proper power to the computer for its functions. Replacing your battery can be beneficial to improve computer usage and lifetime. If your laptop dies frequently or doesn’t power on, then you should consider replacing your battery.

  1. Remember, to prevent electric shock or harm, disconnect the laptop from any external power source and make sure device is powered off before starting any disassembly. Use a Phillips #1 screwdriver bit to remove the eight 5mm screws from the back panel.
    • Remember, to prevent electric shock or harm, disconnect the laptop from any external power source and make sure device is powered off before starting any disassembly.

    • Use a Phillips #1 screwdriver bit to remove the eight 5mm screws from the back panel.

    • Once the screws are loose, use the three opening tools to loosen and remove the back panel.

  2. Carefully unplug the battery cable from the connector on the motherboard, using your fingers to pull the cable straight out of the port. Carefully unplug the battery cable from the connector on the motherboard, using your fingers to pull the cable straight out of the port. Carefully unplug the battery cable from the connector on the motherboard, using your fingers to pull the cable straight out of the port.
    • Carefully unplug the battery cable from the connector on the motherboard, using your fingers to pull the cable straight out of the port.

  3. Unscrew the five 4mm screws that are holding the battery secure with a Phillips #1 screwdriver. Remove the Li-polymer battery by lifting it directly out of the device. Information about disposal of your damaged battery can be found at E-Waste Recycling
    • Unscrew the five 4mm screws that are holding the battery secure with a Phillips #1 screwdriver.

    • Remove the Li-polymer battery by lifting it directly out of the device.

    • Information about disposal of your damaged battery can be found at E-Waste Recycling

Conclusion

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

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