When on battery, severe CPU throttling kicks in at 35% charge: how to change ?

Anonymous
2019-12-19T16:39:57+00:00

Brand new Spro7, Firmware up-to-date.

I noticed drastic CPU throttling when battery charge level reaches 35%: CPU tops at about 0.5 GHz and setting the power slide to "Best Performance" doesn't change that.

I found no setting that would allow to change this excessively conservative threshold to something more reasonable like 12 or 15% (my Battery Saver level is set at 15%, but it has obviously no impact on this).

Is this hard-coded in the firmware ?

Any ideas ?

Surface | Surface Pro | Power and battery

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  1. Anonymous
    2021-01-14T09:55:57+00:00

    Things are getting worse for me

    Yesterday while working on fully charged battery, I felt my system was performing slowly but didn't pay much attention.

    Today I restarted the system several times (Restart or Shutdown then power on), with battery charged at 58% and no matter the Power Mode perf cursor position, the CPU speed tops at about 1.30 GHz with demanding apps. Switching Power plans has no effect.

    Plugging the power made the CPU instantly jump to 3.25 GHz

    Please don't tell me I should return this unit !!!!!

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