Today, smartphones are an integral part of our lives. We use them so often that we have to charge the batteries of mobile devices almost every day, and sometimes more often. Due to the fact that we leave smartphones alone only at night, it is at this time of day that the charging process takes place. But is it worth leaving the gadget connected to the network all night, because initially the manufacturers insisted that charging too long leads to battery wear?
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There are a very large number of theories and dubious assumptions about this. After spending a little time on the Internet looking for good advice, you will find a whole bunch of posts that are more of an expression of one’s own opinion than real facts. How to find the truth? Journalists from DigitalTrends spoke with the co-founder of Farbe Technik, a charger manufacturing company, Shane Brosky. His words are confirmed by Apple, which has introduced optimized battery charging since iOS 13. So…
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Leaving your iPhone on charge all night is fine if battery life isn’t a major factor for you.
“Leave your phone plugged in overnight can, it won’t do too much damage to your device as a whole,” Browsky noted. “Your phone is very smart and once it is fully charged, it will block the incoming charge in order to protect against overcharging and overheating.”
On the other hand, if the iPhone is just a phone for you, which you will change to a new one in a year or two anyway, then there is not much point in worrying about battery life.
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Why iPhone battery life decreases with constant overnight charging
Constant “overnight charging” will gradually reduce battery life.
“When you leave your iPhone on charge overnight, the battery capacity drops from 100% to 95-98% and then recharges again. During the night, this cycle will repeat several times. As a result, a large number of charge cycles will be wasted even without actively using the phone.
In addition, lithium-ion batteries can react adversely to elevated temperature conditions, which also shortens battery life,” Shane explains. “If the smartphone is in a case that does not allow heat to escape, it will increase the temperature of the battery and provoke cellular oxidation, which will lead to a decrease in capacity and wear of the battery.”
That is, sometimes in order to prevent damage to the battery, putting the smartphone on charge at night, it is worth removing the case.
But there is also good news. Starting with iOS 13, Apple introduced a new algorithm called Optimized battery charging. With this mode, the iPhone will keep the battery level around the 80% mark throughout the night, sometimes turning it off completely. The iOS algorithm will determine when the user usually wakes up and starts his day, and by that time will restart charging so that by the beginning of the day the smartphone is in hand with a 100% battery.
In other words, the function Optimized battery charging makes sure the iPhone doesn’t waste charge cycles overnight. The program will provide 100% battery charge by the beginning of an active day.
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Where to view iPhone battery status
iOS has the necessary tools to analyze battery performance along the way Settings → Battery. There, in the section Battery status You can see the current percentage of iPhone battery capacity relative to a new device.
iPhone 11 battery status after 2 months of use:
iPhone 8 battery status after 1.5 years of use:
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How to properly charge your smartphone
“The golden mean for lithium-ion batteries is to keep them 20-80% charged. This allows the charged ions to continue working and protect the battery,” says Shane. “By charging the device little by little throughout the day, you can provide these ions with enough energy to keep them going.”
Thus, frequent recharging is much more beneficial for the smartphone battery. This is not very convenient, but the most optimal if you want your smartphone to work as long as possible.
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Things to try to avoid when charging your iPhone
According to Brouski, the main threat to the battery can be safely called charge cycles – when the battery is charged from completely or almost zero to 100%. The fact is that each battery has its own limit of such cycles, exceeding which, the smartphone will stop working.
The maximum allowable number of cycles can be quite high, however, as it ends, the battery will start to work less and less. Ultimately, the battery will not be able to turn on the device at all.
In order to avoid such an outcome, it is enough to prevent the battery from being constantly fully charged and discharged.
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Use quality accessories
Despite all these factors, one of the most important in this matter is the quality of the charger used. It is best, of course, to give preference to the accessories supplied with the smartphone. If their use is not possible, you should purchase the original charger or cable.
Such accessories are usually quite expensive. In order to choose the most suitable charger, spend some time reading reviews about manufacturers. In this case, it will be better if you give preference to more well-known brands.
An equally important factor is the parameters of charging or cable. To do this, you need to compare the amps and watts of the accessories and the smartphone.
Do not use cheap analogues, as they are produced, often not adhering to all standards. Poor charging can lead to faster battery wear and device failure.
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Outcome
Leaving your smartphone connected to the network all night will damage the battery in the first place. In addition, you should always remember the following:
- Always use original chargers and cables, or certified alternatives from reputable brands and retailers.
- Don’t let your smartphone get too hot. Before leaving your smartphone connected to the network all night, remove the case.
- In order for the battery to work as long as possible, its charge should be 20-80%.
- Avoid completely draining the battery and do not charge from 0% to 100% too often.
See also:
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