Does Overcharging Your Phone Kill The Battery?

Your phone is smart enough to not take damage by overcharging, but there’s still an issue.

Charging a phone causes heat, which — along with cold — can damage a lithium battery.

Prolonged periods of elevated heat will degrade a battery faster, as can be seen in this chart from Battery University.

Is it bad to leave your phone charging overnight?

According to Battery University, leaving your phone plugged in when it’s fully charged, like you might overnight, is bad for the battery in the long run. It keeps the battery in a high-stress, high-tension state, which wears down the chemistry within.

Is overcharging your phone bad for the battery?

It’s complicated, as leaving your battery plugged in all night certainly isn’t dangerous but it might make your battery age slightly faster. “Overcharging” is the term that gets thrown around a lot with this one. This did, in fact, cause damage to the battery and reduce performance. Hell, it even led some to explode.

How do I stop my phone from overcharging?

Avoid charging to extreme (100% charged or 0% charged), it would reduce the life span of the battery. Also avoid charging 40% – 60% charged to reduce the charging cycles as there is a limited number of charging cycles.

Does charging battery too much kill?

Myth: Charging Your Battery Overnight Kills the Long-Term Battery Life. In the same vein as calibrating your battery, it used to be possible to ruin a battery by “overcharging,” or leaving it plugged in all the time. These days, chargers and smartphones are smart enough to prevent this from happening.

Is the 40 80 Battery rule real?

The rule is to keep your battery charged at somewhere between 40% and 80% level at all time. Overcharging, undercharging, extreme temperatures, these are all variables that can shorten the life of your lithium-ion battery (used in iPhones and Androids).

How many times should you charge your phone a day?

Should I charge my phone battery to 100%? No, or at least not every time you charge it. Experts recommend that you do a full zero to 100 percent battery recharge (a “charge cycle”) once a month.