how to turn on macbook air after battery dies

If your phone becomes too cold, the reactions can slow down, causing your battery to shut off suddenly even when it still has 30 or 40% juice. As mentioned, your battery is made possible by chemical reactions. Temperature is probably the most common reason that smartphone batteries die unexpectedly. When the battery percentage is accurate, but you notice your phone battery draining fast, one of these issues is likely the cause. Not only can certain factors affect the accuracy of your battery percentage, but they can also impact the battery itself. This is another common reason for a sudden smartphone shutdown, and that's less-than-ideal conditions. Something Abnormal Is Draining Your Battery Too Quickly While most major smartphones show accurate battery percentages, errors can arise that reduce the accuracy, resulting in unexpected shutdowns. Your smartphone has a 'fuel gauge' of sorts attached to the battery that, using chemistry formulas, uses the present interactions (both electrical and chemical) to estimate a battery percentage.Īs you can safely assume, this is a sensitive process that can be affected by things like temperature, the age of your battery, the quality of the fuel gauge, and so forth. Like most science, these reactions are measurable. Without getting too deep into the nitty-gritty, batteries are made possible through chemical reactions. Instead, a (very accurate) measurement is made using algorithms from chemistry. There's no magic way to know exactly how much percentage of a charge is left on your phone battery.

You may have never given it much thought before, but your battery's percentage isn't 100% accurate (pun intended). Why Does Your Phone Suddenly Die at 20/30/40% Battery? 1. In this article, we'll explain why they happen, how you can prevent them, and share a device with you that can extend your cell phone battery life to the end of the day.

Random shutdowns are an all too common issue on smartphones, but they are preventable. Picture this: You're watching your favorite movie on Netflix when you suddenly get a notification on your phone.Ģ0% should be enough to get you to the end of the movie, right? You clear the notification, hit play, and three minutes later- your battery drops to 0%, your phone shuts off, and your movie is brought to an unexpected end.

How to turn on macbook air after battery dies