How to charge the new iPhone 6s. How to properly and quickly charge an iPhone, including charging from an iPad, non-original and without a charger

Owners of a fashionable gadget know that they need to charge their iPhone every day. This becomes a habit - I put it on exercise in the evening, in the morning full battery. And some people believe that you can charge your iPhone only after it is completely discharged. Whose opinion is correct?

According to experts, lithium ion batteries needs to be charged every day. This also applies to charging iPhones. If you want your battery to last a long time, you don't need to charge it to capacity.

How to properly charge an iPhone

Experts have the following opinions on this matter:

You need to charge your phone often. That is, if the charge level has not yet reached 100%, then there is no need to wait for this. And there is also no point in allowing the battery to completely discharge every day until the device is turned off. This mode is detrimental to the phone, so it is better to recharge the iPhone several times a day a little at a time rather than from 0 to 100%.
The charge level must be kept above the average level. That is, these numbers can range from 40% to 80, and you can connect even when the battery shows a 50% charge. But it’s best to turn off charging when the battery is not yet fully charged. A 90% charge is sufficient.
Full discharge and 100% charge – once a month. Battery drained to complete shutdown devices can be charged to the maximum level - 100%.
Many Apple product users find it convenient to charge their phone at night. In the morning the battery shows full charge. But in this way you can quickly drain the battery, because it does not charge throughout the night, and then remains in standby mode, but on recharge. This way the battery deteriorates faster.

How to charge an iPhone correctly - tricks or how to extend battery life

To ensure your battery lasts longer, consider the following:

if you constantly charge the battery to 100%, then such a device will last for a maximum of 500 cycles, while when the battery is charged only 70%, the battery life increases and then the battery will last for 2000 charging cycles;
Do not expose the device to hypothermia or overheating. The extreme temperature range is: from +15 degrees to +40 degrees. If there is a record high outside in the summer, the iPhone battery may lose 35% of its capacity;
The battery tolerates overheating worse than hypothermia. Therefore, it is better to refuse wireless charger or use it in case of emergency when connecting to the network is not possible. All wireless charging creates excess heat and wears out the battery life;
You can extend the life of your iPhone battery in this way: lower the screen brightness, turn off those applications that use GPS navigation. If the signal is bad and the phone is in standby mode, then it is better to turn on the “Airplane” mode;
turn on the “Energy Saving” mode. To do this, go to “Settings” - “Battery”, make the appropriate mark “On”.

Last week, a story became popular on the Internet, the heroes of which were an unknown Internet user and Apple's senior vice president of software, Craig Federighi. The first sent a letter to the head of the corporation, Tim Cook, in which he asked whether it was necessary to remove tasks from the list of running applications in order to save battery power. “No and no again,” Federighi answered for his boss on his own Twitter.

Soon after this, foreign and domestic media began publishing a link to a special section on the Apple website, which talks about how to increase the operating time of an iOS device without recharging and extend the overall life of the built-in battery.

The page that has gained new popularity notes that the term “lifetime” in relation to a battery means exactly the period that elapses between two charges, and the definition of “lifespan” implies the time after which the battery needs to be replaced with a new one. Exactly how to extend both - translated by RG Digital.

1. Apple advises updating software promptly, as updates often include new energy-saving technologies.

2. Avoid being too high or too low temperatures when using gadgets - this applies to tablets, smartphones, and laptops. The range of comfortable temperatures is from 16 to 22 degrees Celsius, the upper limit is 35 degrees Celsius. Charging at more high temperatures ah may cause permanent damage to the battery. Use in cold conditions may reduce the time battery life, but this phenomenon is temporary.

3. Remove cases from devices while charging. This will help them avoid overheating as charging can cause excess heat.

4. Keep gadgets half charged if you leave them for a long time. A completely discharged battery may completely lose the ability to charge in the future. In turn, a battery charged at 100 percent for a long time may lose some of its capacity. It is recommended to store devices at a temperature not exceeding 32 degrees.

5. Available for iPhone and iPad additional ways increase battery life. The first one is to install automatic brightness, in which the device adapts to lighting conditions. The second is to keep Wi-Fi on all the time, since this access method consumes less energy.

6. iOS 9 introduced a power saving mode that warns the user when the battery is low and also reduces power consumption by disabling iCloud synchronization and AirDrop data transfer. At the same time, the ability to make calls, send SMS and access the Internet will remain. When the device is charged, the saving mode is automatically turned off.

7. According to Apple, iOS 9 has become the most energy-efficient operating system, since it has the ability to find out which applications are using the most battery power. If desired, the user can limit the background activity of the most "gluttonous" programs.

Owners of a fashionable gadget know that they need to charge their iPhone every day. It becomes a habit - I put it on charge in the evening, the battery is full in the morning. And some people believe that you can charge your iPhone only after it is completely discharged. Whose opinion is correct?

According to experts, lithium ion batteries need to be charged every day. This also applies to charging iPhones. If you want your battery to last a long time, you don't need to charge it to capacity.

How to properly charge an iPhone

Experts have the following opinions on this matter:

You need to charge your phone often. That is, if the charge level has not yet reached 100%, then there is no need to wait for this. And there is also no point in allowing the battery to completely discharge every day until the device is turned off. This mode is detrimental to the phone, so it is better to recharge the iPhone several times a day a little at a time rather than from 0 to 100%.
The charge level must be kept above the average level. That is, these numbers can range from 40% to 80, and you can connect even when the battery shows a 50% charge. But it’s best to turn off charging when the battery is not yet fully charged. A 90% charge is sufficient.
Full discharge and 100% charge – once a month. If the battery is discharged until the device is completely turned off, you can charge it to the maximum level - 100%.
Many Apple product users find it convenient to charge their phone at night. In the morning the battery shows full charge. But in this way you can quickly drain the battery, because it does not charge throughout the night, and then remains in standby mode, but on recharge. This way the battery deteriorates faster.

How to properly charge an iPhone - tricks or how to extend battery life

To ensure your battery lasts longer, consider the following:

if you constantly charge the battery to 100%, then such a device will last for a maximum of 500 cycles, while when the battery is charged only 70%, the battery life increases and then the battery will last for 2000 charging cycles;
Do not expose the device to hypothermia or overheating. The extreme temperature range is: from +15 degrees to +40 degrees. If there is a record high outside in the summer, the iPhone battery may lose 35% of its capacity;
The battery tolerates overheating worse than hypothermia. Therefore, it is better to refuse a wireless charger or use it in case of emergency, when it is not possible to connect to the network. All wireless charging creates excess heat and wears out the battery life;
You can extend the life of your iPhone battery in this way: reduce the screen brightness, turn off those applications that use GPS navigation. If the signal is bad and the phone is in standby mode, then it is better to turn on the “Airplane” mode;
turn on the “Energy Saving” mode. To do this, go to “Settings” - “Battery”, make the appropriate mark “On”.

Actively used laptops (Macbook Pro, Macbook Air), smartphones (iPhone) and tablets (iPad 4, iPad mini) constantly need recharging. However, not everyone knows how to charge correctly to extend the life of the battery. So you can hear two different opinions, one of which says that the battery of any mobile device, be it Macbook Air or the iPhone 5 should be completely discharged and then charged to 100%, and the second advises maintaining the device's charge level at about 40-80% by regularly recharging the devices.

These tips are not without meaning and have a very real background. In the recent past, nickel batteries were common, which had the so-called “memory effect”. So they had to be completely discharged. Nowadays laptops, smartphones and tablets (especially when it comes to mobile Apple technology) mainly lithium-ion batteries are installed, for which this problem is not so acute. However, in order to prolong their uninterrupted operation as much as possible, since their service life is measured in years, it is necessary to adhere to certain rules of use.

1. Devices require regular charging.

The device should not be completely discharged; it needs regular recharging. It would be optimal to recharge after the battery has been discharged by 10-20%, without lowering the charge level even to 50%.

2. Do not hold devices long time on charge.

Lithium-ion batteries do not require constant fully charged. The recommended charge level should be between 40 and 80%, so it is advisable to adhere to these limits. After charging the device to 100%, it is unacceptable to leave it further charging.

Sometimes this seems very convenient, but you should remember that this is what can shorten the battery life. Even if the device is charged overnight, you should make sure that this is done using special energy-saving sockets that will allow you to turn off charging after a certain number of hours.

High-quality phones and laptops have a built-in charge controller, which allows them to signal when they are fully charged and even turn off charging themselves after that. Devices with this function can be kept connected to the network at all times.

3. Once a month, the battery must be discharged to zero and fully charged.

Occasionally full iPhone drain or an iPad is still necessary. Once a month, it is recommended to carry out a full cycle of discharging to zero and charging to 100%, which allows you to calibrate the device. After all, on a smartphone or tablet, the remaining charge is most often indicated either as a percentage or in hours and minutes, after which complete discharge will occur. But frequent use of small charges leads to incorrect operation this function, therefore it is necessary to perform a calibration to return the accuracy of these readings.

4. It is unacceptable to overheat the device.

The battery life of, for example, an iPhone device may also be reduced due to overheating, so you should not allow it to be exposed to high temperatures.

By following these recommendations, you can significantly increase battery life. However, you should not panic too much if you are not always able to perform optimal charging. Even if the device is discharged once again to zero or there is a need to charge it to full before a long journey, this should not become a reason for unnecessary worries.

Did you ask if you can charge your iPhone using an iPad charger? Which adapter should I choose? Is it possible to use the phone while it is connected to the outlet? Now I'll tell you everything.

How to charge an iPhone

You cannot charge your iPhone incorrectly; it can be charged quickly or slowly. What does this depend on? From a specific smartphone and power supply.

Charging the iPad helps. But not always.

A minute of statistics: iPhone 5s consumes 1A, iPhone 5 takes the same. Connecting them to the iPad power supply is no use. But the iPhone 6+ and 6s+ eat up 2.1A, so it makes sense to connect a unit from the iPad. Let's check it out.

We take two iPhone 6+, connect a standard 1A charger to one, and connect a 2.1A iPad unit to the second. In 10 minutes the first one was charged by 4%, and the second by 10%, profit! To speed up charging, use airplane mode, the difference is small, but the method still helps.

Charging the battery while in use

You can use the device while charging, it will just take a little longer to charge.

Current strength decides

When buying yourself a multiport charger, pay attention not only to the current strength, but also to the support Quick Charge, this will greatly speed up the process. For iPhone this one cool topic doesn’t work, but if you have a Galaxy S6, then feel like a king.

The same principle applies to Power Bank: It is better to take a charger that produces a current of 2A. It won't kill your smartphone, but you can always charge your tablet. Whereas with an external 1A battery this situation is basically impossible.

iPhone not charging? Check your Lightning cable

Bought a Chinese Lightning for 100 rubles at a stall, but your iPhone refused to charge? Before buying, be sure to look at the packaging; if you take proven, certified Belkin or Griffin products, then everything is ok. But when the box doesn't say "made for iPod, iPhone, iPad", then you can fly with the cable.

No need to replace the battery

A modern battery has a lifespan of about 1000 cycles, which is about 3 years of operation. So you’d rather exchange your old phone for a new one because you’re just tired of it, than really start to suffer because of a dead battery. Unless, of course, you killed it with Chinese wires and a worthless power bank.

To prevent your iPhone from burning

Achtung! Don't charge your iPhone while lying in bed. Just imagine: you stare at the screen, fall asleep, the phone falls on the bed or under the pillow, under the blanket, overheats and FIRE. Don't do that.

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As you know, owners of iOS devices charge their devices in different ways. Some believe that you need to resort to this procedure every day. Others are sure that the charge must run out completely, and only then do you need to connect the gadget to the outlet.

Probably no one can say 100% how this procedure should be done. The only thing you can trust is Apple recommendations on this matter, posted on the company’s website on the Internet.

How to properly charge the new iPhone 5S is another difficult question. They are asked by many new owners of a gadget of this model or the iPhone 6, as well as any other version of the Apple phone.

A number of users are surprised by this recommendation that charging the device before maximum value, that is, up to 100%, harmful. It must be said that many experts also believe that it is necessary to keep the battery charge level within 50-80%. Based on the results of some tests, it was determined that a device charged to 100% can easily work for at least 500 cycles. While the battery, the charge value of which stopped at 70%, withstood more than 1000 cycles. Thus, everything is clear with repeated procedures. But what about the very first charge?

This is where things get a little more complicated. Discussions are still ongoing on this matter, and no consensus has been reached.

In this article we will try to figure out how to charge a new iPhone 5S or 6 for the first time. Here are some tips, including: provided by the manufacturer. By following all the recommendations exactly, you will significantly extend the life of the battery of your iOS device.

How to properly charge iPhone 5S or 6

Of course, the battery of the new iPhone 6 (or another version of the gadget from Apple) is already equipped with a certain amount of energy; it needs to be recharged. Moreover, the duration of this process should be at least 12 hours, and preferably a day.

The charging operation itself looks like this:

Connecting the USB cable from the charger to the iPhone.
Connecting the charger to the mains.
Leaving the gadget for 12-24 hours.

This way, the device will go through the first charging cycle, after which it will be necessary to completely discharge the battery. And exactly 100%. To do this, you need to use the device as actively as possible. After this, you need to proceed to the second cycle, namely, you should completely repeat the steps of the first.

At the end of the second cycle, the device again discharges followed by charging. And the more repetitions of this procedure are performed, the longer the iPhone equipped with a large number energy.

Note that after 1-2 cycles, the gadget discharges in a natural mode. But it is recommended to speed it up. For this purpose, you can download voluminous software using Wi-Fi or turn on a long video clip.

After 2 years of using the device, it is better to replace the battery with a new one.

While charging, do not leave the phone in the sun. Direct contact must be avoided sun rays to the device. Therefore, do not leave your gadget in a hot car or on a windowsill. If the device overheats, liquid will leak from it, and of course, it will soon fail.

Is it right to leave the device on charge overnight?

To give a competent answer to this question, you need to understand the essence of the processes that take place inside the device after it is connected to the power adapter. Let us immediately note that the built-in controller (or module) is in charge of charging the battery. By the way, this element controls this process not only in gadgets from Apple, but also in almost all modern mobile devices.

What is a controller for? To prevent the battery from overcharging. But at the same time, the element helps the phone charge as quickly as possible. At the same time, up to 80% the battery is recharged very quickly, and up to the remaining 20 - at a slow pace.

After the process is completed, the controller turns off the power supply. The system seems to leave the battery alone - and does not allow energy to flow into it, but also does not take charge from the element. At this time, the device itself is charged from a device intended for this purpose. In other words, at this moment absolutely nothing happens to the battery. Thus, the existing popular myth that after a 100% charge the battery begins to work in cyclic mode has no basis. If this were true, the element would wear out very quickly. And, of course, no one needs this.

Let's dwell on one more fact. It is known that every battery can discharge itself. And this process is completely natural. Of course, if the battery is not connected anywhere. For lithium-polymer cells, this value is only 5% per month, which is very little, especially compared to other types of batteries.

A new charging cycle is started by the controllers if it detects a significant level of charge loss. Regularly this element checks the battery for this item. But this process will start only after the loss of at least 2% of energy. And the latter can happen no more than 2 times a month. So, if the user leaves his gadget on charge for 30 days, then the battery will probably go through 2 repeat cycles.

So, what is the right way to approach the issue of charging an iOS device? Probably, many have already understood from the article that there is no single “recipe”. Apple gadgets include a controller to protect the device in critical situations. On the forums, some users note that they have been using smartphones for 3-4 years, charging them haphazardly, that is, at random. Most often, the device charges 100% overnight. But especially active users have to recharge during the daytime. And with this approach, nothing bad happens to the battery. After 4 years of use, it holds a charge well (on average, 1 day - no problem). So you don't have to worry too much about this issue. Start the process whenever you see fit. The most important thing is to use only original accessories from the manufacturer. And this applies not only to charging. Otherwise, you can cause irreparable harm to your gadget.

Did you ask if you can charge your iPhone using an iPad charger? Which adapter should I choose? Is it possible to use the phone while it is connected to the outlet? Now I'll tell you everything.

How to charge an iPhone

You cannot charge your iPhone incorrectly; it can be charged quickly or slowly. What does this depend on? From a specific smartphone and power supply.

Charging the iPad helps. But not always.

Charging the battery while in use

You can use the device while charging, it will just take a little longer to charge.

Current strength decides

When buying a multiport charger, pay attention not only to the current strength, but also to the support for Quick Charge, this will greatly speed up the process. This cool theme doesn’t work for iPhone, but if you have a Galaxy S6, then feel like a king.

The same principle applies to Power Bank: it is better to take a charger that produces a current of 2A. It won't kill your smartphone, but you can always charge your tablet. Whereas with external battery on 1A such a situation is in principle impossible.

iPhone not charging? Check your Lightning cable

No need to replace the battery

A modern battery has a lifespan of about 1000 cycles, which is about 3 years of operation. So you'd rather change yours old phone to a new one, because you’re just tired of it, and then you’ll really start to suffer because of the dead battery. Unless, of course, you killed it with Chinese wires and a worthless power bank.

To prevent your iPhone from burning

Charger failure, low-quality or non-original adapter, lack of electricity. These and many other reasons may prevent a user from charging an iPhone. However, just for such a case, there are many other modern methods to recharge the device.

If you don’t have an original charger at hand, and the battery is almost running out, then you can use one of the following simple methods. Most of them can be a worthy alternative to Lightning.

Via USB port

If you only have a USB cable at hand, you can use it and a computer to charge your mobile device. USB 2.0 and 3.0 connectors are suitable for this. The disadvantage of this method is that the cable has insufficient power, so it will take a lot of time to reach 100% charge.

If you connect the USB cable to the adapter, you can use a wall outlet instead of a computer. This method will be faster, but you will need to wait up to several hours.

Charge without a cord

There are two options for alternative power sources that are offered on the modern market:

solar battery. It is a portable device that accumulates solar energy and can transfer it to a mobile phone in the form of cherished battery percentages. Naturally, in cloudy weather, use solar battery it will be difficult;
portable battery. Can be wired (imply the mandatory presence USB cord) and wireless. You can purchase a device in a price range from 500 rubles to several thousand. The only difference will be in power: the more powerful the “charger”, the more expensive it is. The optimal power level is considered to be 10,000 mAh.

In order for the battery to supply energy to the mobile phone in a difficult situation, it must also be recharged in a timely manner.

Pay attention! Another lesser-known device is a device that converts heat into electrical energy. It is installed directly on the fire (or near it), after which it is connected to the mobile phone. This method is ideal for hiking or other conditions in which it would be difficult to obtain electrical energy.

iQi Mobile wireless charging

An innovative device from the manufacturer Apple is an original battery that charges a mobile device contactlessly under any conditions. The advantages of the iQi Mobile Wireless Charging device are:

affordable price;
light weight and compact dimensions (convenient to take with you on the road);
the ability to place the device under a mobile case;
no need for electricity sources;
the ability to charge the gadget;
high charging speed;
compatible with all iPhone models including X, 7 Plus, SE, etc.;
work without USB usage cord.

All that is required for work is compatible charging like Koolpuck or Koolpad. Enough to position wireless charging nearby and the battery percentage will begin to increase rapidly.

Case with battery

The battery case is an innovative development, invented for those who constantly need to charge their phone when there is no network nearby. This device works in the following way:

We install the mobile phone inside. To do this, pull back the top edge and insert the device.
Charging. While in the charging case, the iPhone works automatically. To avoid wasting excess energy, monitor the level on the screen of your mobile device.
Remove from charge. To do this, pull back the top edge and take out the phone.

Pay attention! The charging case also needs to be recharged. To do this, use a USB Lightning cable and any user-friendly energy source. You can use a licensed “charger” for iPhone.

Since such a case is not equipped with any indicators, its charge level must be monitored through Apple device. To do this, place the phone in the case to charge, after which two battery indicators will be displayed on its screen - the main one and for the Smart Battery Case.

What to do if your iPhone won't charge

Sometimes you cannot charge your mobile device, even when you have the original charger at hand. Knowing the causes of this phenomenon, you can try to correct the problem at home. Let's consider possible ways solutions:

faulty USB port. Malfunctions in the laptop may result in problems with USB connectors. If you charge your iPhone this way, test all ports, constantly monitoring the charge level. Often this method helps, and charging still begins in one or more ports;
Lightning connector is dirty. This happens even if you use a case and keep the device completely clean. Try cleaning the connector with a toothpick, but be careful not to damage the internal contacts. It is best to carefully go around the corners without touching the central part. After this, the input should be purged and you can start charging.

If the phone is so discharged that it turns off, it naturally may not immediately respond to the charger. Wait 10-15 minutes before moving on to the next method.

If neither one nor the other method helped, but you are using the original charger, then most likely the problem lies in the mobile device itself. Problems may arise with the battery, firmware, or power controller. In this case, you will need to contact service center for diagnostics and subsequent repair work.

We use other chargers

Any specialist will confidently say that for high-quality iPhone charging It is best to use the original device. But this is not always possible, and besides, certified models are quite expensive. In such situations, users resort to using other chargers, for example:

Chinese analogues. Using cheap analog chargers - effective way to charge your mobile device. It's cheap, but very short-lived.
direct charge. This method is very dangerous, however, experienced users can take a chance and take advantage of it. To implement this, you will need to disassemble the iPhone and remove the battery. After this, carefully cut off the connector from any charger: you will see blue (+) and red (-) wires. We connect these wires to the contacts on the battery and secure them with electrical tape. It will be impossible to control the charge level, but if everything is done correctly, then rest assured that the device will be charged. If you are not confident that you can carry out the process safely, then this method It's better not to use it!

The described methods may be suitable only for the most extreme cases and for one-time use. It is strictly not recommended to use them constantly: this can cause harm to both the mobile device and your health.

What is better not to do

Sometimes iPhone users who cannot charge their device take extreme measures to do so or neglect safety rules. Such users should know in advance what they should absolutely not do:

constantly use uncertified chargers. Hundreds of cases of fires are known mobile phone, battery failure, serious breakdowns. The causes of these problems were non-original chargers. Cheap analogues will serve your needs iPhone bad service, so it’s better to pay more, but buy the original Lightning;
try to disassemble the phone yourself. You especially shouldn't do this if you don't understand mobile devices. You can be sure that as a result you will have to contact a service center;
Do not leave your mobile charging after the battery is fully charged. This has a great impact on the battery and shortens its life;
follow the instructions. Additional charging devices must be used strictly in accordance with it. Do not neglect safety rules and the battery will last you a long time.

Important! Experts recommend keeping charging at a medium level. It ranges from 40% to 80%. It is better not to bring the charge level to 100% and not to let it drop to 0%: this wears out the battery. Ideal option– charge the device more often, but for a shorter period of time.

Results

There are many devices, including non-standard ones, that help charge the iPhone even in difficult conditions. However, it is not recommended to use them constantly, but only in rare cases. The best and in a safe way The original device remains for charging.

Video

Many iPhone owners They charge smartphones once a day, turning this into an everyday ritual like brushing their teeth and drinking morning coffee. Others resort to using a charger only after complete discharge battery But, one way or another, all owners of electronic gadgets would like to save themselves from the need to replace old batteries with new ones too often. Experts say: in order for the battery electronic device served as long as possible, you can’t charge it to the maximum.

Tech enthusiast Eric Leamer says charging your battery frequently can cause minor damage. However, one complete discharge/charge cycle should still be performed approximately once a month.

It is recommended to charge phone batteries to no more than 50% whenever possible. In general, the optimal charge level is between 40% and 80%. The reason is that each cell lithium polymer batteries charges to the required voltage. The higher the charge level, the higher the voltage level. The more voltage a cell stores, the heavy load she is experiencing. This, in turn, leads to a reduction in the number of possible charging cycles. The researcher says that a battery charged to 100% will last only 300-500 cycles, and a battery charged to 70% will last 1200-2000.

Limer also debunked the myth that you need to charge new gadget for 72 hours before use so it "remembers" what it feels like to be fully charged. This advice is valid when working with nickel batteries, but in the case of lithium-ion batteries, which are used in new phones, it is completely untenable.

The expert noted that to maintain lithium battery in good condition it is necessary that the electrons in it are periodically in motion. For this reason, it is not recommended to keep your tablet or laptop constantly connected to the network. Ideally the owner electronic gadget during use, it must continuously charge and discharge the battery, leaving the charge at 40-80%. In this mode, the battery life increases many times over.

The specialist also advises not to expose your phone to extreme low/high temperatures. The recommended storage temperature for most batteries is 15°C (59°F), and the maximum safe temperature generally ranges from 40°C to 50°C. At average temperature at 25 °C lithium ion battery will lose 20% of its maximum capacity every year. At 40 °C its capacity will drop by 35% annually. That's why it's best to avoid wireless chargers: inductive wireless chargers create excess heat that toasts your device's battery.

You can extend battery life yourself by setting your phone's screen brightness to low and turning off apps that use GPS, like location-based services, Leamer says. In regions with bad signal It is recommended to turn on Airplane mode so that your iPhone or iPad does not waste valuable electricity searching for nearby base stations and connecting to them.