Windows 11 Windows 11 Shut Down Battery Drain

  • Thread starter Thread starter Duncan Martyn
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Duncan Martyn

I recently purchased a refurbished Dell Inspiron 15 3520 (i7-1255U) running Windows 11.I noticed that the battery drains a surprising amount and the underside of the case remains fairly warm when the machine has been shut down. For example, it typically loses 50-80% of its charge if not used for 24 hours. This is a modern standby (S0) machine with no option to revert to the S3 power model I've always had prior to this. I've tried the following to no avail:Clean re-install of Windows 11.Installation of Windows 10.Downgrade and re-upgrade of the BIOS.Disabling fast startup.Disabling battery

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