Laptop stays on for only ~10sec when battery is connected, fine otherwise (Lenovo ThinkBook 15 G4 AMD)

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  • wraster
    Member
    • Jan 2025
    • 18
    • USA
    #1

    Laptop stays on for only ~10sec when battery is connected, fine otherwise (Lenovo ThinkBook 15 G4 AMD)

    I have a Lenovo ThinkBook 15 G4 AMD (HLXB5 LA-M062P) that, when the battery is connected, starts up and shuts off in about 10 seconds, even when connected to power supply via USB-C charger. When the battery is disconnected, the computer stays on as in normal/expected operation (powered by USB-C charger input). I bought a new battery and see the exact same thing. My conclusion is it is not the battery itself but maybe some circuit or component involved in battery/DC-in crosstalk. I found a schematic but not boardview (request link below - sorry for the formatting, I'm not sure how to make an inline link). Does anyone have suggestions as to how I can proceed to diagnose, or high-probability potential culprits to check first?

    Thanks so much    .
    Request for Lenovo ThinkBook 15 G4 AMD Boardview (HLXB5 LA-M062P) - Badcaps
    https://www.badcaps.net
    Hi, I have a TB 15 Gen 4 that has an issue with the battery circuits. I believe the schematic is the same as this one: https://www.badcaps.net/forum/troubleshooting-hardware-devices-and-electronics-theory/troubleshooting-laptops-tablets-and-mobile-devices/schematic-requests-only/3522169-lenovo-thinkbook-14s-yoga-gen2-la-m062p
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