Why your phone's battery percentage is a guess

Why your phone's battery percentage is a guess

Your battery percentage is a count, not a measurement.

The phone can't see inside its battery, so a gauge chip counts every bit of charge in and out. Tiny errors pile up, and the voltage barely changes in the middle, so it can't check itself until a full charge resets the count.

Send it to whoever's phone died at 5%.

#battery #smartphone #howthingswork #tech