Many smartphone users have noticed their phones lasting longer than expected when the battery hits 1%. This phenomenon is explained by how phone software estimates remaining power and implements energy-saving modes.

• The percentage displayed on your screen is an estimate based on voltage, not a precise measurement.
• IT expert Nephi Hatcher explains that phone software makes "educated guesses" about battery life, which become less accurate at low levels.
• When critically low, phones reduce performance and background activity to conserve energy and avoid abrupt shutdowns, a feature attributed to smart engineering.