Helpful information.

There are many instructions on the web that describe the process of determining the number of recharge cycles for iPhone and iPad. However, almost every one of these articles talks about the method that requires a Mac to use. But this is an optional requirement. Find out the number of iPhone and iPad recharge cycles, and determine if it's time to think about replacing the battery on a Windows computer.

Step 1. Download and install the utility iTools to a Windows computer. Important! For iTools to work properly, iTunes must be installed on your computer, the current version of which can be downloaded from Apple's official website.

Step 2. Launch iTools and connect your iPhone or iPad to your computer with a USB cable.

Step 3. Wait until the device is detected in the program.

Step 4. Press the button with the battery icon located under the device.

Step 5. In the graph FullCycle information on the number of iPhone or iPad recharge cycles will be provided.

Also, in the menu that opens, you should pay attention to the columns Actual Capacity and Design Capacity... They indicate the current and declared battery capacity, respectively. In other words, Design Capacity- the battery capacity of the device in a new state, and Actual Capacity- the capacity that the iPhone or iPad currently has.

The iPhone's battery is its heart; without it, even Apple's newest smartphone is just a useless piece of metal and glass. In this article, we will tell you what kind of battery is installed in the iPhone, how to assess its condition and how to properly charge it.

What type of batteries does iPhone have?

Each iPhone comes with a lithium-ion battery. They have enough advantages over "traditional" batteries: they charge faster, work longer, and weigh less.

Battery recharging consists of two phases. During the first - from 0 to 80% - the battery is replenished with energy quickly (the exact charging time depends on whether the device is used, settings and other factors). The second - from 80 to 100% - is called compensation, it "weakens" the electric current and thereby allows you to extend the life of the iPhone battery.

What is a charge cycle and why is it important?

One cycle is when you discharge your iPhone from 100% to zero. This can be done in one go, or in several. Example: the battery is 75% discharged in a day. You charged it to 100% and continued to use it. One recharge cycle will end when you use up another 25% of the charge (yesterday's 75% + today's 25%).

What are we for? The iPhone battery naturally has a resource. After 500 full recharging cycles, the battery capacity of the "apple" smartphone will decrease by 15-20%. In practice, 500 charging cycles is 1.5-2 years of smartphone operation. After about 3-4 years, the battery capacity will correspondingly decrease by 50% from the value that the iPhone had out of the box. Then it makes sense to think about replacing the battery - after all, you will probably notice that your iPhone, for example, no longer "survives" until the evening and lets you down at the right time.

How to find out the number of iPhone recharge cycles passed directly on the iOS device?

Download the free Battery Life app on your iPhone. Open it and go to the tab Battery where the value Cycles and will indicate the number of recharge cycles the iPhone has gone through.

Sorry, the section Cycles in the application Battery life available only users of devices with iOS 7, iOS 8 and iOS 9. Users of iOS 10 and newer can get battery data as a percentage with an indication of the general characteristic:

Ideal- the battery of the new iPhone.
Good- slight loss of capacity.
Fine- the battery has lost the allowable amount of capacity.
Bad- significant loss of capacity.
Terrible- it's time to think about replacing the battery.
Almost died- the battery needs to be changed urgently!

How to know the number of iPhone recharge cycles completed on Mac or Windows?

Use the program. After installation, connect your iPhone, select it under Devices, click on the inscription More Information and look at the number opposite the inscription CycleCount- this is the number of recharge cycles already passed.

Below you will also find other useful information about the battery of your iPhone - the capacity according to the passport ( DesignCapacity), the actual capacity after full charge ( FullChargeCapacity), battery wear level ( BatteryCurrentCapacity).

Let's learn how to determine the number of charging cycles of an Android phone or tablet battery, as well as determine the degree of physical deterioration of the battery.

This article continues the previous ones: and.

This article is suitable for all brands that produce phones on Android 10/9/8/7: Samsung, HTC, Lenovo, LG, Sony, ZTE, Huawei, Meizu, Fly, Alcatel, Xiaomi, Nokia and others. We are not responsible for your actions.

Attention! You can ask your question to a specialist at the end of the article.

Features of modern batteries

Contrary to popular myths on the Internet, modern Li-ion batteries do not need to be fully discharged all the time. They do not suffer from "memory effect", which reduces the actual capacity, unlike older NiCd batteries.

The only problem that regular partial charging of Li-ion can cause is when the gadget incorrectly estimates the remaining battery life. The problem can be solved by carrying out a single discharge of the device to 100% while it is turned off. You do not need to leave the device dead for a long time - for a Li-ion battery, being in a completely discharged state for a long time leads to damage to the battery or to a partial loss of capacity.

Most manufacturers describe battery life in cycles of full discharge to 0%. This indicator for modern batteries is approximately 500 - 1000 cycles. If the gadget is put on charge at a value of 10 - 20%, then this will not mean a complete discharge, and the cycle time will approximately triple.

Visual inspection of the battery

You do not need to be an expert to distinguish a damaged battery from a "healthy" one. Most of the problems can be discerned with the naked eye. If the battery is removable on the tablet or smartphone, then it should be removed by turning off the device beforehand. After that, the following symptoms should be checked: swelling, white or greenish spots, corrosion around the metal contacts.

If this is observed, then soon the gadget may become unusable altogether. If you find a curved battery or suspicious stains, you should immediately purchase a new battery. A problem battery must not be put back so that electrolyte does not spill into the device and damage it.

"Rotation test"

Lithium batteries degrade with each cycle. Incorrect storage only aggravates the situation - for example, hypothermia or overheating will significantly reduce the battery life. If one great way to break the battery would be to discharge it to zero and stay that way for a long time.

The battery can gradually swell, and this process takes place over weeks or months. Immediately and do not notice a slight bend. You can check this with a regular test: the battery to be removed should be placed on a flat surface and twisted. If it rotates easily, then this is not a good sign.

Not all batteries can be easily and quickly removed and examined. In this situation, close attention must be paid to the speed of the battery discharge. Should alert the loss of two or more percent at once and a quick discharge to 0 in a couple of hours. These signs indicate that the battery will soon become unusable.

Software ways to check the battery on Android

The android encrypted in the system contains a log of battery information. This information can be obtained using special utilities. For example, the Battery application, "Battery Care" and other analogs.

You can find various magic codes on the Internet, but they do not work in new versions of Android. In addition to the number of charge and discharge cycles, these utilities demonstrate the operating temperature of the battery. You should pay attention to this parameter if the battery gets very hot.

AccuBattery for Android

The AccuBattery application reads information from the battery controller and displays it in a visual interface. The utility helps you choose the most optimal charging, determine the applications that consume the gadget the most and find out about the current battery wear.

Development began on AccuBattery after Dutch engineers tried to extend battery life. Here we are not talking about slowing down the discharge during the day. The goal is to ensure that the battery capacity is not lost after many months of use. The problem is also relevant because many modern gadgets come with non-removable batteries.

The developers conducted a series of tests, which resulted in important conclusions. You do not need to charge the device throughout the night, since the power source loses its capacity during reboots. The reason for this lies in the chemical processes that take place in the battery.

Mobile devices have an internal on / off switch that stops charging when reaching 100%, while power continues to ooze, which affects the oxidation stability of certain chemicals. It turns out that to fully charge the tablet or phone, you need to disconnect from the mains as soon as possible, after one hundred percent charging.

The best way to charge the battery is 80%. The AccuBattery app has a built-in alarm that sounds active when the battery is at its optimal level. It is located in the "Charge" menu.

Section "Charging"

At the top of the working window there is a roundness, in the green part of which the current percentage of charge is shown, and in the blue part - the acceptable one. The 80% threshold is set by default, but you can increase or decrease it. To do this, you need to move the slider and pay attention to how this affects the damage done to the battery.

If you scroll down the window even lower, you can find out the charging speed of your device from various power sources. For example, connect the "native" charger, then turn off the device for a couple of minutes and look at the Charge speed tab. It provides accurate information about the amount of time remaining until the optimal charge. To compare speed, you can repeat the steps with an external battery or other charger.

Section "Discharge"

This section displays statistics on the battery consumption since the last charge. The following information is available in the Battery usage subsection:

• How much interest was spent when the screen was off or on and for what period of time.
• Which application has consumed the most ampere-hours (mAh).
• How long the gadget has been in sleep mode, how often this mode has been interrupted.

You can also consider the list of applications that have been actively using the battery. The developers of AccuBattery claim that their method of changes is more accurate than that suggested by the Android system.

Sections "History" and "Health"

The "Health" section is the main advantage of the application. When connected to a power source, it begins to track exactly how much energy is entering the battery and what percentage of a full charge it is. Based on the information received, the residual capacity is determined. To obtain a more accurate determination of the current capacity, several long charging cycles should be performed.

If we compare the nominal with the residual capacity of the battery, then we can find out how much it has decreased during the operation. There are also two graphs available to the user:

• Wear for every day of use.
• Real capacity level, measured as a percentage of factory capacity.

The History section contains information about each discharge and charge. If there is not enough general data, then you need to click on any presented cycle.

Every iPhone and iPad user sooner or later faces the problem of battery wear. For some, a quick discharge of the gadget begins after a few months of use, for others - after a few years. The "dragged" battery will have to be changed, otherwise the device will not live even half for one charge.

To delay replacing the battery on your iPhone or iPad, you need to better understand the features of the battery in the gadget.

Let's ask re: Store representatives about it.

How the iPhone battery is charged

Most modern electronics are equipped with lithium-ion batteries, Apple technology is no exception. These batteries charge quickly, last for a relatively long time, are lightweight and are cheap to manufacture.

The process of charging lithium-ion batteries can be roughly divided into two phases: constant current charging with increasing voltage and constant voltage charging with decreasing current strength.


During the first phase, the battery receives from 0% to 80% of the charge, and during the second phase, the current is weakened, the battery gains the remaining capacity. It is the presence of the second compensation phase that is designed to extend the battery life.

For devices with a fast charge function, the second phase is most often greatly shortened, which leads to a rapid loss of the maximum battery capacity.

What is Battery Cycle

One cycle is considered to be the full consumption of the battery charge from 100% to 0%. The cycle can be continuous if the battery was fully charged, or vice versa - it can consist of several intervals. In any case, the cycle will be the discharge of the full capacity of the battery.

Most often, after 500 cycles, the battery capacity drops by 15-20% of the maximum. Depending on the activity of exploitation, these five hundred cycles can pass in 1-2 years. After another couple of years, the capacity may drop to 50-60%.

The service centers recommend thinking about replacing the battery after 500 cycles and strongly recommend replacing a battery that has wound more than 1,000 cycles. For more information on how to find out the number of battery cycles, read.


Many people are mistaken in the belief that not fully discharging a battery is not a cycle and prolongs battery life. This is not true.

The battery delivers excellent energy at a charge level of approximately 30% to 80%. A pair of such discharge intervals will be considered one cycle, but the battery will not be stressed in the form of a full charge or full discharge, as with one clean cycle from 0% to 100%.

A battery that is operated in this mode will not lose more than 10% of its nominal capacity upon reaching 1,000 cycles.

Why a long charge is harmful

The rhythm of life of the majority of users of mobile technology does not allow recharging the battery of a smartphone during the day, and gluttonous gadgets ask for a power outlet by the evening. Without much thought, many people plug their iPhone into a charger overnight to get a full battery in the morning.

After fully charging in standby mode, the battery may be discharged by 2-3%, which means that recharging with a small current will start again to compensate for the discharge that occurs.

This process negatively affects the performance of the battery, the battery will quickly lose its maximum capacity.

What is all this for

Now you know all the nuances of the iPhone battery charging process, this will help you take care of your smartphone battery.

Everyone must decide for themselves: kill the battery with a careless attitude and after a year pay for a replacement or follow simple recommendations so that the device keeps its charge well after a few years.

Thanks to re: Store for useful and interesting information.

It is very important to know the number of charge cycles of your MacBook's battery, if only, because you will not be very pleasantly surprised when the battery suddenly "orders a long life." Well, or when buying a used laptop, they will not be able to deceive you, and they will not slip a "breathing in incense" battery.

Now we will tell you how to protect yourself from such problems and find out all the information about your battery.

How to find out the number of battery cycles on a MacBook

- First of all, open "About this Mac", select "More" "system report" and then the item "Power".

What is a recharge cycle? A recharge cycle assumes that the battery is fully charged. However, many of us do not wait for the device to turn off, and constantly recharge it. Well, for example, you have discharged your laptop by 50% and charged it, as soon as your device is discharged by another 50%, it will be considered that the battery has gone through one cycle. That is, the cycle can include several recharges.

After each completed cycle, the battery capacity decreases slightly. For example, batteries that are on Apple equipment lose no more than 20% of their capacity over a sufficiently large number of recharge cycles.
For more information on Apple computer batteries, see