A battery that lasts for 12 hours has been in use for 7 hours. What percent of the battery life has been used up?

To find out how much of the battery life has been used, you can set up a simple equation. If the battery lasts 12 hours and has been used for 7 hours, you divide the used time by the total time and then multiply by 100 to get the percentage: (7 hours / 12 hours) * 100 = 58.33%. So, approximately 58.33% of the battery life has been used up. And let’s not forget the value of keeping track of battery life! Many devices have battery-saving modes that can stretch out battery life even further. Utilizing features like reducing screen brightness, turning off unnecessary background apps, or using power-saving settings can make those precious hours last longer—your device will thank you!