Myth: You Should Let Your Phone Hit 0% Before Charging

This is old advice from even older battery tech — the nickel-cadmium batteries we mentioned ealier. The lithium-ion batteries in modern phones do not benefit from deep discharges the way those older batteries did. In fact, frequently draining to 0% can get you the exact opposite result and add wear over time.

Your battery will be happier if you avoid extreme lows and highs constantly. That doesn’t mean you need to baby your phone or stress about the percentage every hour. It just means you shouldn’t treat 0% as a goal.

So stop constantly letting your iPhone reach 0% before charging if you can. Keeping it between the 20% and 80% marks is the best way to keep your battery healthy. 

Overall, you simply don’t need to worry about your battery. As long as you don’t go out of your way to damage it, it’s best to simply enjoy your iPhone without stressing over battery health all the time.