Windows laptops often suffer from poor battery life due to unoptimized settings. The most impactful change is reducing screen brightness by pressing Win + A and dragging the slider down. Power management involves trade-offs between performance and longevity.

To improve battery life, set an energy-efficient power plan by opening Settings (Win + I), selecting System > Power & battery, and adjusting Power Mode. Lower screen and system sleep timeouts, and enable Energy Saver to limit background activities. For more control, access Control Panel's Power Options, select Power saver mode, and adjust advanced settings like processor state.

Disable visual effects through Settings > Accessibility > Visual Effects by turning off Transparency and Animation effects. Further optimization is available via the Performance Options window, where choosing 'Adjust for best performance' reduces visual flair, especially on budget laptops. Close unnecessary background apps and processes, as they continue running invisibly and drain battery even when not actively used.