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Историческую версию Battery Doctor можно получить на Android
Рассчитать срок службы батареи и улучшить его.
Battery Doctor is a free and professional battery saver app to stop power-draining apps, save battery life and protect battery health. Battery doctor can extend the standby time of your phone. Battery Doctor (Battery Saver) is a tool that helps you save battery power and tells you approximately how much life your battery has left.
Battery Doctor is a good application for calculating your battery's life and also to improve its performance in some cases.