All iOS Devices Lie When They Say Their Battery Is 100%


Although it takes forever to fully charge, the new iPad costs less than $2 a year to run.
Unplug your iPad just after it reaches 100% and you'll lose up to 1.2 hours of battery life.

Shortly after the new iPad made its debut earlier this month, it was discovered that the way in which the device calculates its battery life is flawed. Despite telling you its charge is at 100%, your device hasn’t actually finished charging.

New data proves that in fact, your device isn’t finished charging until more than two hours after it reaches “100%,” and if you unplug it before then, you could lose around 1.2 hours of battery life. What’s more, it seems all iOS devices misreport their battery life.