Method of laptop conditional power management in Windows 11

Solution 1:

I ended up writing a python script to manage this. It requires only python, does not need admin rights, and no additional modules are required.

import subprocess
import time
import datetime

battery_watermark = 75
sleep_on_battery_mins = 20

def set_standby_timeout_dc(mins):
    return subprocess.call("powercfg -change -standby-timeout-dc " +str(mins))

def battery_precentage():
    return int(subprocess.run(["WMIC", "PATH", "Win32_Battery", "Get", "EstimatedChargeRemaining"], capture_output=True).stdout.decode().split("\n")[1][:3].strip())

def on_battery():
    #BatteryStatus returns 2 when connected to AC.
    charging_status = int(subprocess.run(["WMIC", "PATH", "Win32_Battery", "Get", "BatteryStatus"], capture_output=True).stdout.decode().split("\n")[1].strip())
    if charging_status == 2:
        return False
    else:
        return True

print("Windows Power settings changer")
starttime = time.time()
while True:
    if (battery_precentage() > battery_watermark) and on_battery():
            print(str(datetime.datetime.now()) + ": Setting on-battery standby timeout to 0, battery at " + str(battery_precentage()) + "%, on battery: " + str(on_battery()))
            set_standby_timeout_dc(0)
    else:
        print(str(datetime.datetime.now()) + ": Setting on-battery standby timeout to " + str(sleep_on_battery_mins) + ", battery at " + str(battery_precentage()) + "%, on battery: " + str(on_battery()))
        set_standby_timeout_dc(sleep_on_battery_mins)
    time.sleep(((sleep_on_battery_mins/2)-1)*60 - ((time.time() - starttime) %60))