lSet\Control\Session Manager.

Next, create a new key called Throttle. Inside this Throttle key add these dword decimal values.

    * PerfIncreasePercentModifier - 70
    * PerfDecreaseMinimumTime - 150000 (150ms)

I'm not to sure about the logic behind this - but I've found that it works. So do try this out.

Conclusion

This article has shown you some registry settings that can help improve your laptop battery life. I never knew that you can change registry settings to extend your battery life - but the best thing is that, it works. So do try this out and let me know how it goes for you.