How to Properly Charge Your iPhone?

how to properly charge the iPhone

by Alex Gustman

Updated: April 14, 2021

The power source is one of the main smartphone systems. Should it fail or discharge, the whole device would become useless. We all know that certain charging habits make the battery die faster than it should. So in this article, we will tell you how to charge your iPhone properly. Let’s check if there is any point in looking after your portable device batteries and (if yes) how to charge it right.

Is it bad to charge your iPhone overnight?

Charging behavior is one of the factors (to a certain extent) impacting the power source health. Let’s have a look at exactly what happens:

  • you put the phone to charge and fall asleep,
  • the device gets topped up in one-three hours up to 100%,
  • assuming average sleeping pattern, it will lay like this for at least five additional hours,
  • if the battery level drops until the value set by the manufacturer, the charging will start again.

By following this topping-up pattern, we do two things wrong – let the phone charge 100 percent and leave it like this for an extended period. This is exactly what makes the aging process go faster, and, as a result, the battery will lose its capacity more quickly. Though electronic components prevent the device from overcharging, auto-top-ups will heat the phone and the power source. Since heat is one of the things lithium-ion accumulators fear the most, you have one more reason to avoid this charging pattern.

Will you immediately notice any difference? If you tend to buy a new iPhone every time you get bored, there is probably nothing to worry about. In the worst-case scenario, you will have to buy a power bank and carry it around with you just in case. If you are too attached to your piece of gear – start looking after it from the moment of purchase. Alternatively, have your battery replaced when it’s no longer good enough.

Should you charge your iPhone to 100%?

As it has already been discussed, if you plan to extend your power source lifespan, you should avoid topping up to 100%. If you lack reasons not to do that, here is one more – high voltage when you are up. As a result, constant stress makes the battery degraded. However, this is not the only thing to look after. Lithium-ion batteries used in most portable electronic devices, apart from being charged up, do afraid to be completely drained off. 

The worst scenario battery-wise is when your phone powers off automatically. Complete discharges can damage the power source, making it lose the ability to soak up as much energy as before. According to Apple, you should be keeping the power level somewhere between 40 and 80 percent to keep the battery healthier. 

If you think that capacity loss is the main reason to stop stressing your battery, you are wrong. One more thing to consider is stability as degradation can also result in the overall smartphone performance. For example, it can start occasionally rebooting by itself for no reason. Sure enough, it may happen exactly when you need your device urgently.

When should you charge your iPhone?

The time of the day, as you might have already guessed, does not matter much. The main thing is maintaining room temperature, avoiding freezing, and overheating. Since heat is harmful, avoid leaving it in the kitchen, a car, or surfaces exposed to direct sunlight. 

What about the cold then? The colder the device is, the less energy it is capable of giving out. This means that your power source will last less from a single charge. If you plan to go skiing, wear thick protective cover to make sure you can film as many videos as you want.

It might also be a good idea to turn the phone off during the charging. This way, you will have no temptation to play games, watch videos on YouTube, or load your device up with other tasks that can wait. By powering off the smartphone and leaving it alone, you avoid overheating the battery, which positively results in its lifespan.

How often should you charge your iPhone?

Lithium-ion batteries are used in portable devices for a good reason. They are small, efficient, capable of providing enough power, and don’t require regular service. Besides, they can be recharged multiple times without sufficiently losing capacity. Additionally, they don’t have much of a “lazy battery effect” instead of nickel-cadmium and nickel-metal hydride power sources.

This unties our hands since we do not have to follow a strict charging pattern. We can top-up as often as we want to keep the energy level between 40 and 80 percent (though it does not seem a convenient and easy thing to do). Keep in mind though that it is still a bad idea to fully charge or discharge. 

Should I use fast charging?

Wireless Qi-devices do generate additional heat labeling themselves, battery enemies. The same thing is done by fast outlet adapters not meant for your iPhone. Make sure the chargers you use are genuine, or Apple certified to avoid damaging the power source. If you have to do it fast – avoid long charging periods breaking them into smaller ones.

Looking after the battery is a tiresome job. If you plan to stay with an old iPhone for a while, it is worth avoiding some of the worst practices described in the article. However, the care process should not become an obstacle on the way of using your device efficiently.


Here we have seen how to charge your iPhone properly. In particular, we answered whether you should charge your iPhone to 100% when to put your phone on charging, how often to charge your phone, and whether to use a quick charge.

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About the author 

Alex Gustman

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