Why does my Dyson vacuum's battery deplete rapidly when I engage maximum suction?

Several factors cause your vacuum's battery to drain quickly at maximum suction. The battery works harder to power the vacuum cleaner when suction is maximum. Energy consumption increases with workload, reducing battery life. The battery is further strained by the vacuum's restricted airflow when maximum suction is used. This airflow restriction makes the battery work harder, shortening its lifespan. Finally, the vacuum battery works harder when you vacuum up heavier debris. It takes more energy to move this heavier debris, reducing the battery's lifespan. The battery depletes faster when using maximum suction due to increased power demands, airflow restrictions, and handling heavier debris.