At a certain stage of using the iPhone, the user wonders whether it is necessary to change the battery on the smartphone? And how do you know when you need to change the battery on the iPhone? One of the indicators of the "life" of an iPhone battery is the number of charge cycles.
The battery charge cycle is the rate at which your smartphone was charged and then discharged. Therefore, one cycle should be understood as 1 charge and 1 discharge of the battery.
With prolonged use of the smartphone, the battery gradually loses its energy storage properties and becomes unusable. As a rule, this becomes noticeable in the battery life of the smartphone. Typically, iPhone battery life is 500 charge cycles. After overcoming the threshold of 500 cycles, the battery holds its charge worse and you need to think about changing either the battery or.
How to find out the number of iPhone charging cycles?
There are no standard verification methods, but no jailbreak is needed. The iBackupbot program will help you find out how many charging cycles have already taken place. You can install it on MacOS and Windows. You can download the program at www.icopybot.com.
Important: iTunes must be installed on the computer. The program will not work without it.
After installing the program, connect your iPhone to your computer and launch iBackupbot. A window with information about your iPhone will immediately open in front of you.
Go to the "More information" section ( More information) A new window will open with detailed information. The first line in the "Battery" section, the "CycleCount" parameter, is the number of times your iPhone is charged.
Key metrics from the battery section in iBackupbot
- CycleCount- the number of cycles ( charging / discharging the battery);
- DesignCapacity- battery volume in mAh ( original battery capacity as declared by the manufacturer);
- FullChargeCapacity- full charge volume ( an indicator that shows how much the battery is when fully charged today);
- Status- status ( that is, the state of the battery is working / not working);
- BatteryCurrentCapacity- battery charge level at the moment.
From the example, you can see that the iPhone 5 battery has 708 charge cycles. Moreover, the volume of a full charge is less than 40% (500 mAh) of the declared volume (1430 mAh). If you have a figure of 70-60%, this also means that the battery on your iPhone needs to be changed.
If, when checking, you turned out to have few cycles, and the smartphone is discharged quickly, you should already contact the service for diagnostics and troubleshooting.
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 9/8/7/6: Samsung, HTC, Lenovo, LG, Sony, ZTE, Huawei, Meizu, Fly, Alcatel, Xiaomi, Nokia and others. We are not responsible for your actions.
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 full discharge cycles down 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-based 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. This can be verified by 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.
Increase 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. There is no 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 in order 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 the 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.
Increase 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 contains the exact 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 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 was interrupted.
Increase 
Increase You can also look at 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 starts tracking how much energy is going into 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.
IPhone Battery Charge / Discharge Cycles
Like any part, the battery has its own resource. The battery life is determined in cycles. This is the number that determines how many times the battery has been fully charged. Charging a battery from 50% to 100% is considered a half cycle, and charging from 25% to 50% is a quarter cycle, and charging from 0 to 100% is a full cycle.
If the number of cycles reaches 350-400, then you can already noticeably feel the lack of battery capacity. At 500 cycles, the battery capacity is reduced to 60-80% of the nominal capacity, which is present in new batteries. 500 cycles are achieved with 1.5-2 years of iPhone use.
Normal operating temperature for iPhone is 0 ° C to 35 ° C
Low temperatures for iPhone Li-Ion batteries
At low temperatures (0 ° C and below), iPhone battery capacity drops by up to 40-50%. When the battery temperature returns, the capacity is restored. However, a common reason for contacting our service is to turn off the iPhone in cold weather, the battery level indicator can vary greatly, from 60% to 5%, etc. The reason for this phenomenon is low temperature + battery nearing the end of its life. There is only one indication - battery replacement. A good battery should be depleting capacity, but not shutting down your iPhone.
High temperatures for iPhone Li-Ion batteries
At high temperatures (35 ° C or more), the iPhone battery will degrade. If we remove the battery from the iPhone, we will immediately see that it is "swollen", in our service we call such batteries "pregnant". If the battery was very hot and swollen, then only replacing it will help, it will not cure itself, even if it cools down. It is imperative not to expose iPhone to direct sunlight or hot surfaces. The problem can be seen if you look at the display under the rays of light - there must be a replacement for the bulge. the battery presses on the display.
Improper iPhone battery charging
IPhone batteries are extremely voltage sensitive. According to Wikipedia, a voltage change of just 4% can reduce the battery capacity by almost half. The charging current depends on the voltage difference between the battery and the charger and on the resistance of both the battery itself and the wires supplied to it. In fact, this means that the charger unit detects the battery voltage and adjusts the voltage supplied to the battery for charging. Original blocks, as well as blocks of high-quality manufacturers, know how to do this, Chinese chargers, alas, do not know how, the same applies to car chargers. If you want to extend the life of the battery, but use a car charger, do not connect the iPhone to the charging cord at least while starting the engine, at this moment the voltage may jump.
When should you change your iPhone battery?
- When the number of cycles has reached 500;
- If the iPhone is more than 2 years old;
- When the iPhone turns off spontaneously in cold weather;
- When the battery is swollen.
- When the battery lasts for half a day or less.
How to check the number of iPhone battery cycles?
Checking on Mac with Coconubattery
At the top right, click on the iOS Device icon, then look at the line Loadcycles on the contrary, we see the number of battery cycles, in this case it is equal to 190, which means a quite good battery.
Checking on iPhone with Battery Life
Flip the application screens from right to left until we see such statistics. We look at the line Cycles, on the contrary, we see the number of battery cycles, in this case it is equal to 317.
The application will also show the current battery capacity and charge consumption in mA / hour.
Lithium-ion batteries are not as picky as their nickel-metal hydride counterparts, but they still require some maintenance. Adhering to five simple rules, you can not only extend the life cycle of lithium-ion rechargeable batteries, but also increase the operating time of mobile devices without recharging.
Do not allow full discharge. Lithium-ion batteries do not have a so-called memory effect, so they can and, moreover, need to be charged without waiting for discharge to zero. Many manufacturers calculate the life of a lithium-ion battery as a number of full discharge cycles (up to 0%). For quality batteries, this is 400-600 cycles... To extend the life of your lithium-ion battery, charge your phone more often. Optimally, as soon as the battery charge drops below the 10-20 percent mark, you can put the phone on charge. This will increase the number of discharge cycles to 1000-1100
.
Experts describe this process by such an indicator as Depth Of Discharge. If your phone is up to 20% discharged, then the Depth of Discharge is 80%. The table below shows the relationship between the number of discharge cycles of a lithium-ion battery and the Depth of Discharge:
Discharge every 3 months. A full charge for a long time is just as harmful to lithium-ion batteries as being constantly discharged to zero.
Due to the extremely unstable charging process (we often charge the phone as necessary, and where it works, from USB, from an outlet, from an external battery, etc.), experts recommend completely discharging the battery once every 3 months and then charging it to 100% and holding it on charge 8-12 hours. This helps to reset the so-called high and low battery charge flags. You can read more about this.
Store partially charged... The best condition for long-term storage of a lithium-ion battery is between 30 and 50 percent charge at 15 ° C. If the battery is left fully charged, its capacity will decrease significantly over time. But the battery, which has been gathering dust on the shelf for a long time discharged to zero, most likely is no longer a tenant - it's time to send it for recycling.
The table below shows how much capacity remains in a lithium-ion battery depending on storage temperature and charge level when stored for 1 year. 
Use the original charger. Few people know that in most cases the charger is built directly into mobile devices, and an external power adapter only lowers the voltage and rectifies the current of the household power supply, that is, it does not directly affect the battery. Some gadgets, such as digital cameras, do not have a built-in charger, and therefore their lithium-ion batteries are inserted into an external “charger”. This is where the use of an external charger of questionable quality instead of the original one can negatively affect the performance of the battery.
Do not overheat. Well, the worst enemy of lithium-ion batteries is high temperature - they cannot stand overheating at all. Therefore, do not expose mobile devices to direct sunlight or leave them in the immediate vicinity of heat sources such as electric heaters. Maximum permissible temperatures at which lithium-ion batteries can be used: from –40 ° C to + 50 ° C
Also, you can see
When buying a used iPhone, future owners pay attention first of all to the appearance of the smartphone.
I would like to take a closer look at the case: examine it for scratches and chips, take a closer look to see if all the parts of the case are tightly assembled, whether the lid or even the screen is loose, etc.
More demanding buyers check the quality of the connection (earpiece and microphone), and some have a desire to check the battery of their future iPhone. So, it is at this point that we will stop.
How to find out the number of charge cycles on an iPhone using a PC
In addition to this question, we will help you find out the level of battery wear on your iPhone.
A useful application called iBackupbot comes in handy to determine the number of times a battery has been charged. You just need to download from the offered page and install it on your PC. Then we do everything as in the screenshots below.
After starting the program and connecting the iPhone to the PC, we see such a window. We click on our smartphone, and then in the right part of the window we look for the button "More Information" and click on it.
Immediately after that, a new window of this type will appear:
The first item in the open window is named "Battery". The first sub-item is called "CycleCount". Its numeric value, in our case 355, represents the number of times our iPhone's battery has been charged.
How to find out the number of charge cycles on an iPhone using a mobile app
The second method involves using a special mobile application called "Battery Life". You can download it for free from the App Store by simply entering the name in the search.
So, the program is installed. We launch it and see the main screen. On the main screen we see the inscription "Wear Level", the state is "Good". It is an overall measure of the health or life of the battery in your Apple mobile device.
There are four possible options:
- Perfect (excellent)
- Good
- Bad
- Very Bad
Find the fourth item "History" and tap on it with your finger. A new window will open in which we are interested in the "Cycles" sub-item. This numerical value means the number of times the iPhone battery has been charged.
That's all. It will be curious to know your options for solving this problem in the comments.
