Can You Leave Your iPhone Charging Overnight?

If your iPhone is running low on water towards the end of the night but you want it to charge by morning, you might want to plug it in all night, but is keeping your iPhone charging overnight bad for the battery?

There are many ways to fix bad iPhone battery life and get overall better battery life from your iPhone, but there are not many things you can do that can give you better battery life in the long run.

However, something users may have discussed or wondered in the past is whether leaving your iPhone on charge overnight is bad for the device’s battery.

Years ago, before battery technology had drastically improved to what it is today, leaving your battery powered devices plugged in all night was bad for the battery and could seriously damage the health of the battery in the long run because the battery would be “overcharged” and more juice even though the carton was already full. forehead.

However, battery technology has advanced quite a bit since then, and lithium-ion batteries (found in iPhones) cannot be overcharged. Older battery technologies such as nickel-cadmium (Ni-Cd) and nickel metal hydride (Ni-MH) batteries are prone to overcharging, and there are still some devices today that use such batteries, such as rechargeable alkaline batteries and some power tools. batteries. However, your iPhone uses newer lithium-ion battery technology.

iphone 6

Popular Mechanics says says that lithium-ion batteries don’t overcharge and will instead “drip charge”. This happens when the battery reaches 100% and the charger slows the voltage it sends to your iPhone sufficiently to keep it charged without overcharging.

More specifically, the entire time you plug your iPhone in and it’s at 100%, it really goes from 100% to 99% or even 98% and then back to 100% many times until you finally unplug it, this is hence the name “trickle charge”.

iPhone-6 copy

However, this can cause very slight deterioration of the battery over time. This is because batteries have a lifespan measured in cycles. One cycle equals from 100% to 0% full battery discharge. So technically, slow charging counts into your battery’s cycles. It wasn’t said how long you should leave your iPhone plugged in for trickle charge to have a big impact on the cycle count, but it could at least have some sort of effect.

Your iPhone’s battery has a lifespan of several hundred cycles, so you probably don’t have to worry about that, but these numbers can add up quickly if you charge it every day. Still, most users upgrade their smartphones every couple of years, and if there’s a battery, it can last that long without much degradation.

In relation :  Stuck When You Upgrade to iOS 11

Plus, Popular Mechanics “It’s much better to leave your phone on the charger all night (or all day) than to drain your battery and charge it,” he says.